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TPS7A45xx www.ti.com SLVS720D – JUNE 2008 – REVISED AUGUST 2011 LOW-NOISE FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS Check for Samples: TPS7A45xx FEATURES 1 • Optimized for Fast Transient Response • Output Current: 1.5 A • High Output Voltage Accuracy : 1% at 25°C • Dropout Voltage: 300 mV • Low Noise: 35 μVRMS (10 Hz to 100 kHz) • High Ripple Rejection: 68 dB at 1KHz • 1-mA Quiescent Current • No Protection Diodes Needed • Controlled Quiescent Current in Dropout • Fixed Output Voltages: 1.5 V, 1.8 V, 2.5 V, 3.3 V • Adjustable Output from 1.21 V to 20 V • Less Than 1-μA Quiescent Current in Shutdown • Stable with 10-μF Ceramic Output Capacitor • Reverse-Battery Protection • Reverse Current Protection APPLICATIONS • Industrial • Wireless Infrastructure • Radio-Frequency Systems DESCRIPTION The TPS7A45xx devices are low-dropout (LDO) regulators optimized for fast transient response. The device can supply 1.5 A of output current with a dropout voltage of 300 mV. Operating quiescent current is 1 mA, dropping to less than 1 μA in shutdown. Quiescent current is well controlled; it does not rise in dropout, as with many other regulators. In addition to fast transient response, the TPS7A45xx regulators have very low output noise, which makes them ideal for sensitive RF supply applications. Output voltage range is from 1.21 V to 20 V. The TPS7A45xx regulators are stable with output capacitance as low as 10 μF. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and reverse-current protection. The devices are available in fixed output voltages of 1.5 V, 1.8 V, 2.5 V, 3.3 V, and as an adjustable device with a 1.21-V reference voltage. The TPS7A45xx regulators are available in the 5-pin TO-263 (KTT) and 6-pin TO-223 (DCQ) packages. DCQ PACKAGE (TOP VIEW) 5 SENSE/ADJ 4 OUT 6 3 GND 2 IN 1 SHDN KTT PACKAGE (TOP VIEW) 5 SENSE/ADJ 4 OUT 3 GND 2 IN 1 SHDN GND 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2008–2011, Texas Instruments Incorporated TPS7A45xx SLVS720D – JUNE 2008 – REVISED AUGUST 2011 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. PRODUCT TPS7A45xxyyyz ORDERING INFORMATION(1) (2) VOUT xx is nominal output voltage 15 = 1.5 V, 18 = 1.8 V, 25 = 2.5 V, 33 = 3.3 V, 01 = adjustable yyy is package designator (DCQ or KTT) z is package quantity (R = 2500 for DCQ, 500 for KTT) (1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. (2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging. ABSOLUTE MAXIMUM RATINGS(1) over operating virtual-junction temperature range (unless otherwise noted) IN Input voltage range, VIN OUT Input-to-output differential(2) SENSE ADJ SHDN Output short-circuit duration, tshort Maximum lead temperature (10-s soldering time), Tlead Operating virtual junction temperature range, TJ Storage temperature range, Tstg –20 V to 20 V –20 V to 20 V –20 V to 20 V –20 V to 20 V –7 V to 7 V –20 V to 20 V Indefinite 300°C –40°C to 125°C –65°C to 150°C (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) Absolute maximum input-to-output differential voltage cannot be achieved with all combinations of rated IN pin and OUT pin voltages. With the IN pin at 20 V, the OUT pin may not be pulled below 0 V. The total measured voltage from IN to OUT can not exceed ±20 V. THERMAL INFORMATION θJA θJCtop θJB ψJT ψJB θJCbot THERMAL METRIC(1)(2) Junction-to-ambient thermal resistance Junction-to-case (top) thermal resistance Junction-to-board thermal resistance Junction-to-top characterization parameter Junction-to-board characterization parameter Junction-to-case (bottom) thermal resistance TPS7A45xx KTT DCQ 5 PINS 6 PINS 28.0 50.5 43.0 31.1 17.4 5.1 3.9 1.0 9.4 5.0 0.3 — UNITS °C/W (1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953A. (2) For thermal estimates of this device based on PCB copper area, see the TI PCB Thermal Calculator. 2 Copyright © 2008–2011, Texas Instruments Incorporated TPS7A45xx www.ti.com SLVS720D – JUNE 2008 – REVISED AUGUST 2011 ELECTRICAL CHARACTERISTICS(1) Over operating temperature range TJ = –40°C to 125°C (unless otherwise noted) PARAMETER TEST CONDITIONS VIN VOUT VADJ Minimum input voltage(3) (4) ILOAD = 0.5 A ILOAD = 1.5 A TPS7A4515 TPS7A4518 Regulated output voltage(5) TPS7A4525 ADJ pin voltage(3) (5) Line regulation TPS7A4533 TPS7A4501 TPS7A4515 TPS7A4518 TPS7A4525 TPS7A4533 TPS7A4501 (3) VIN = 2.21 V, ILOAD = 1 mA VIN = 2.5 V to 20 V, ILOAD = 1 mA to 1.5 A VIN = 2.3 V, ILOAD = 1 mA VIN = 2.8 V to 20 V, ILOAD = 1 mA to 1.5 A VIN = 3 V, ILOAD = 1 mA VIN = 3.5 V to 20 V, ILOAD = 1 mA to 1.5 A VIN = 3.8 V, ILOAD = 1 mA VIN = 4.3 V to 20 V, ILOAD = 1 mA to 1.5 A VIN = 2.21 V, ILOAD = 1 mA VIN = 2.5 V to 20 V, ILOAD = 1 mA to 1.5 A ΔVIN = 2.21 V to 20 V, ILOAD = 1 mA ΔVIN = 2.3 V to 20 V, ILOAD = 1 mA ΔVIN = 3 V to 20 V, ILOAD = 1 mA ΔVIN = 3.8 V to 20 V, ILOAD = 1 mA ΔVIN = 2.21 V to 20 V, ILOAD = 1 mA TPS7A4515 VIN = 2.5 V, ΔILOAD = 1 mA to 1.5 A TPS7A4518 VIN = 2.8 V, ΔILOAD = 1 mA to 1.5 A TPS7A4525 VIN = 3.5 V, ΔILOAD = 1 mA to 1.5 A Load regulation TPS7A4533 VIN = 4.3 V, ΔILOAD = 1 mA to 1.5 A TPS7A4501 (3) VIN = 2.5 V, ΔILOAD = 1 mA to 1.5 A TJ 25°C Full range 25°C Full range 25°C Full range 25°C Full range 25°C Full range 25°C Full range Full range Full range Full range Full range Full range 25°C Full range 25°C Full range 25°C Full range 25°C -40°C to +85°C Full range 25°C -40°C to +85°C Full range MIN 1.485 TYP (2) 1.9 2.1 1.5 MAX 2.5 1.515 UNIT V 1.447 1.5 1.545 1.782 1.8 1.818 1.737 2.475 1.8 1.854 V 2.5 2.525 2.412 2.5 2.575 3.266 3.3 3.333 3.2 3.3 3.4 1.197 1.21 1.222 V 1.174 1.21 1.246 2 6 2.5 7 3 10 mV 3.5 10 1.5 3 2 9 18 2 10 20 2.5 15 30 3 20 mV 30 70 2 8 8 18 (1) The TPS7A45xx regulators are tested and specified under pulse load conditions such that TJ ≉ TA. They are fully tested at TA = 25°C. Performance at –40°C and 125°C is specified by design, characterization, and correlation with statistical process controls. (2) Typical values represent the likely parametric nominal values determined at the time of characterization. Typical values depend on the application and configuration and may vary over time. Typical values are not ensured on production material. (3) The TPS7A4501 is tested and specified for these conditions with the ADJ pin connected to the OUT pin. (4) For the TPS7A4501, TPS7A4515 and TPS7A4518, dropout voltages are limited by the minimum input voltage specification under some output voltage/load conditions. (5) Operating conditions are limited by maximum junction temperature. The regulated output voltage specification does not apply for all possible combinations of input voltage and output current. When operating at maximum input voltage, the output current range must be limited. When operating at maximum output current, the input voltage range must be limited. Copyright © 2008–2011, Texas Instruments Incorporated 3 TPS7A45xx SLVS720D – JUNE 2008 – REVISED AUGUST 2011 www.ti.com ELECTRICAL CHARACTERISTICS(1) (continued) Over operating temperature range TJ = –40°C to 125°C (unless otherwise noted) PARAMETER TEST CONDITIONS ILOAD = 1 mA TJ 25°C Full range MIN TYP(2) MAX UNIT 0.02 0.05 0.06 VDO Dropout voltage(4) (6) (7) VIN = VOUT(NOMINAL) ILOAD = 100 mA ILOAD = 500 mA 25°C Full range 25°C Full range 0.085 0.10 0.13 V 0.17 0.180 0.250 ILOAD = 1.5 A 25°C Full range 0.300 0.350 0.450 IGND eN IADJ I SHDN GND pin current(7) (8) VIN = VOUT(NOMINAL) + 1 Output voltage noise ADJ pin bias current(3) (9) Shutdown threshold SHDN pin current Quiescent current in shutdown ILOAD = 0 mA ILOAD = 1 mA ILOAD = 100 mA ILOAD = 500 mA ILOAD = 1.5 A COUT = 10 μF, ILOAD = 1.5 A, BW = 10 Hz to 100 kHz VOUT = OFF to ON VOUT = ON to OFF V SHDN = 0 V V SHDN = 20 V VIN = 6 V, V SHDN = 0 V Full range Full range Full range Full range Full range 1 1.5 1.1 1.6 3.3 3.5 mA 15 17 80 90 25°C 35 25°C 3 Full range 0.9 Full range 0.25 0.75 25°C 0.01 25°C 3 μVRMS 7 μA 2 V 1 μA 20 25°C 0.01 1 μA ILIMIT IIL Ripple rejection Current limit Input reverse leakage current VIN – VOUT = 1.5 V (avg), VRIPPLE = 0.5 VP-P, fRIPPLE = 120 Hz, ILOAD = 0.75 A 25°C VIN = 7 V, VOUT = 0 V 25°C VIN = VOUT(NOMINAL) + 1 Full range 1.6 VIN = –20 V, VOUT = 0 V Full range 68 dB 2 A 300 μA TPS7A4515 VOUT = 1.5 V, VIN < 1.5 V 25°C TPS7A4518 VOUT = 1.8 V, VIN < 1.8 V 25°C IRO Reverse output current(10) TPS7A4525 VOUT = 2.5 V, VIN < 2.5 V 25°C TPS7A4533 VOUT = 3.3 V, VIN < 3.3 V 25°C TPS7A4501 VOUT = 1.21 V, VIN < 1.21 V 25°C 600 1000 600 1000 600 1000 μA 600 1000 300 500 (6) Dropout voltage is the minimum input to output voltage differential needed to maintain regulation at a specified output current. In dropout, the output voltage is equal to: VIN – VDROPOUT. (7) To satisfy requirements for minimum input voltage, the TPS7A4501 is tested and specified for these conditions with an external resistor divider (two 4.12-kΩ resistors) for an output voltage of 2.4 V. The external resistor divider adds a 300-µA DC load on the output. (8) GND pin current is tested with VIN = (VOUT(NOMINAL) + 1 V) and a current source load. The GND pin current decreases at higher input voltages. (9) ADJ pin bias current flows into the ADJ pin. (10) Reverse output current is tested with the IN pin grounded and the OUT pin forced to the rated output voltage. This current flows into the OUT pin and out the GND pin. 4 Copyright © 2008–2011, Texas Instruments Incorporated TPS7A45xx www.ti.com PIN NO. NAME 1 SHDN 2 IN 3 GND 4 OUT 5 ADJ 5 SENSE 6 GND DEVICE INFORMATION SLVS720D – JUNE 2008 – REVISED AUGUST 2011 TERMINAL FUNCTIONS DESCRIPTION Shutdown. SHDN is used to put the TPS7A45xx regulators into a low-power shutdown state. The output is off when SHDN is pulled low. SHDNcan be driven by 5-V logic, 3-V logic or open-collector logic with a pullup resistor. The pullup resistor is required to supply the pullup current of the open-collector gate, normally several microamperes, and SHDN current, typically 3 μA. If unused, SHDN must be connected to VIN. The device is in the low-power shutdown state if SHDN is not connected. Input. Power is supplied to the device through IN. A bypass capacitor is required on this pin if the device is more than six inches away from the main input filter capacitor. In general, the output impedance of a battery rises with frequency, so it is advisable to include a bypass capacitor in battery-powered circuits. A bypass capacitor (ceramic) in the range of 1 μF to 10 μF is sufficient. The TPS7A45xx regulators are designed to withstand reverse voltages on IN with respect to ground and on OUT. In the case of a reverse input, which can happen if a battery is plugged in backwards, the device acts as if there is a diode in series with its input. There is no reverse current flow into the regulator, and no reverse voltage appears at the load. The device protects both itself and the load. Ground. For the KTT package, the exposed thermal pad is connected to GND and must be soldered to the PCB for rated thermal performance. Output. The output supplies power to the load. A minimum output capacitor (ceramic) of 10 μF is required to prevent oscillations. Larger output capacitors are required for applications with large transient loads to limit peak voltage transients. Adjust. For the adjustable version only (TPS7A4501), this is the input to the error amplifier. ADJ is internally clamped to ±7 V. It has a bias current of 3 μA that flows into the pin. ADJ voltage is 1.21 V referenced to ground, and the output voltage range is 1.21 V to 20 V. Sense. For fixed-voltage versions (TPS7A4515, TPS7A4518, TPS7A4525, and TPS7A4533), SENSE is the input to the error amplifier. Optimum regulation is obtained at the point where SENSE is connected to the OUT pin of the regulator. In critical applications, small voltage drops are caused by the resistance (RP) of PC traces between the regulator and the load. These may be eliminated by connecting SENSE to the output at the load as shown in Figure 32. Note that the voltage drop across the external PC traces adds to the dropout voltage of the regulator. SENSE bias current is 600 μA at the rated output voltage. SENSE can be pulled below ground (as in a dual supply system in which the regulator load is returned to a negative supply) and still allow the device to start and operate. Ground. DCQ package only. Copyright © 2008–2011, Texas Instruments Incorporated 5 TPS7A45xx SLVS720D – JUNE 2008 – REVISED AUGUST 2011 TYPICAL CHARACTERISTICS DROPOUT VOLTAGE vs OUTPUT CURRENT 500 480 DROPOUT VOLTAGE vs TEMPERATURE www.ti.com 450 400 350 TA = 125°C 300 IOUT = 1.5 A 360 Dropout Voltage – mV Dropout Voltage – mV 250 200 150 TA = 25°C 100 240 IOUT = 0.5 A 120 IOUT = 100 mA 50 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 Output Current – A Figure 1. IOUT = 1 mA 0 -50 -25 0 25 50 75 100 125 TA – Free-Air Temperature – °C Figure 2. Quiescent Current – mA QUIESCENT CURRENT vs TEMPERATURE 1.5 1.4 VIN = 6 V IOUT = 0 A 1.3 VSHDN = VIN 1.2 1.1 VOTUTPFSi7xAe4d533.33 V 1 0.9 0.8 VOUTTPASd7jAu4s5ta0b1le 0.7 0.6 0.5 -50 -25 0 25 50 75 100 125 TA – Free-Air Temperature – °C Figure 3. Output Voltage – V 1.84 1.83 1.82 OUTPUT VOLTAGE vs TEMPERATURE VTOPUST 7FAix4e5d181.8 V IIOOUUTT = 1 mA 1.81 1.8 1.79 1.78 1.77 1.76 -50 -25 0 25 50 75 100 125 TA – Free-Air Temperature – °C Figure 4. 6 Copyright © 2008–2011, Texas Instruments Incorporated TPS7A45xx www.ti.com SLVS720D – JUNE 2008 – REVISED AUGUST 2011 TYPICAL CHARACTERISTICS (continued) OUTPUT VOLTAGE vs TEMPERATURE OUTPUT VOLTAGE vs TEMPERATURE 2.58 3.38 2.56 TVPOUST7FAi4x5e2d52.5 V IIOOUUTT==11mmAA 3.36 VTOPUTSF7Aix4e5d333.3 V IOIOUUTT = 1 mA 2.54 3.34 Output Voltage – V Output Voltage – V 2.52 3.32 2.5 3.3 2.48 3.28 2.46 3.26 2.44 3.24 2.42 -50 -25 0 25 50 75 100 125 TA – Free-Air Temperature – °C Figure 5. 1.23 1.225 1.22 OUTPUT VOLTAGE vs TEMPERATURE VOUTT PASd7juAs4t5a0b1le IOUTIO=UT1=m1AmA VIN V=IN6=V6 V 1.215 3.22 -50 -25 0 25 50 75 100 125 TA – Free-Air Temperature – °C Figure 6. QUIESCENT CURRENT vs INPUT VOLTAGE 1.2 TJ = 25°C 1 ROUT = 4.3 kW VSHDN = VIN TVPOUST7AAd4j5u0s1table 0.8 Quiescent Current – mA Output Voltage – V 1.21 0.6 1.205 0.4 1.2 0.2 1.195 1.19 -50 -25 0 25 50 75 100 125 TA – Free-Air Temperature – °C Figure 7. 0 0 2 4 6 8 10 12 14 16 18 20 Input Voltage – V Figure 8. Copyright © 2008–2011, Texas Instruments Incorporated 7 TPS7A45xx SLVS720D – JUNE 2008 – REVISED AUGUST 2011 TYPICAL CHARACTERISTICS (continued) GROUND CURRENT vs INPUT VOLTAGE GROUND CURRENT vs INPUT VOLTAGE 100 10 90 TJ = 25°C VSHDN = VIN 80 TVPOUST7AAd45ju0s1table VOUT = 1.21 V 70 TJ = 25°C VSHDN = VIN 8 TVPOUST7AAd4j5u0s1table VOUT = 1.21 V www.ti.com Ground Current – mA Ground Current – mA 60 6 IOUT = 1.5 A IOUT = 300 mA 50 40 30 IOUT = 1 A 20 IOUT = 0.5 A 10 0 0 1 2 3 4 5 6 7 8 9 10 Input Voltage – V Figure 9. 4 IOUT = 100 mA 2 IOUT = 10 mA 0 0 1 2 3 4 5 6 7 8 9 10 Input Voltage – V Figure 10. Ground Current – mA GROUND CURRENT vs INPUT VOLTAGE GROUND CURRENT vs INPUT VOLTAGE 40 120 TJ = 25°C TJ = 25°C 35 VSHDN = VIN VSHDN = VIN TVPOUST7FAi4x5e3d33.3 V 100 TVPOUST7FAi4x5e3d33.3 V 30 Ground Current – mA 80 25 IOUT = 300 mA 20 60 IOUT = 100 mA 15 IOUT = 10 mA 40 10 IOUT = 1.5 A IOUT = 1 A 5 20 IOUT = 0.5 A 0 0 1 2 3 4 5 6 7 8 9 10 Input Voltage – V Figure 11. 0 0 1 2 3 4 5 6 7 8 9 10 Input Voltage – V Figure 12. 8 Copyright © 2008–2011, Texas Instruments Incorporated TPS7A45xx www.ti.com SLVS720D – JUNE 2008 – REVISED AUGUST 2011 TYPICAL CHARACTERISTICS (continued) GROUND CURRENT vs OUTPUT CURRENT SHDN INPUT CURRENT vs TEMPERATURE 80 1 VIN = VOUT(nom) + 1 70 VSHDN = 0 V 60 0.75 SHDN Input Current – µA Ground Current – mA 50 40 0.5 30 20 0.25 10 SHDN Input Current – µA 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 Output Current – A Figure 13. SHDN INPUT CURRENT vs SHDN INPUT VOLTAGE 2.5 2.25 2 1.75 1.5 1.25 1 0.75 0.5 0.25 0 0 2 4 6 8 10 12 14 16 18 20 SHDN Input Voltage – V Figure 15. SHDN Input Voltage – V 0 -50 -25 0 25 50 75 100 125 TA – Free-Air Temperature – °C Figure 14. SHDN THRESHOLD (OFF TO ON) vs TEMPERATURE 1 IOUT = 1 mA 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -50 -25 0 25 50 75 100 125 TA – Free-Air Temperature – °C Figure 16. Copyright © 2008–2011, Texas Instruments Incorporated 9 TPS7A45xx SLVS720D – JUNE 2008 – REVISED AUGUST 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) SHDN THRESHOLD (ON TO OFF) vs TEMPERATURE ADJ BIAS CURRENT vs TEMPERATURE 1 5 IOUT = 1 mA 0.9 4.5 0.8 4 ADJ Bias Current – µA SHDN Input Voltage – V 0.7 3.5 0.6 3 0.5 2.5 0.4 2 0.3 1.5 0.2 1 0.1 0.5 0 -50 -25 0 25 50 75 100 125 TA – Free-Air Temperature – °C Figure 17. 0 -50 -25 0 25 50 75 100 125 TA – Free-Air Temperature – °C Figure 18. CURRENT LIMIT vs INPUT/OUTPUT DIFFERENTIAL VOLTAGE 3.5 D?VOUT = 100 mV 3 TA = -40°C 2.5 TA = 25°C 2 TA = 125°C 1.5 1 Current Limit – A 5 VIN = 7 V VOUT = 0 V 4 CURRENT LIMIT vs TEMPERATURE 3 2 Current Limit – A 1 0.5 0 0 2 4 6 8 10 12 14 16 18 20 Input/Output Differential Voltage – V Figure 19. 0 -50 -25 0 25 50 75 100 125 TA – Free-Air Temperature – °C Figure 20. 10 Copyright © 2008–2011, Texas Instruments Incorporated TPS7A45xx www.ti.com SLVS720D – JUNE 2008 – REVISED AUGUST 2011 TYPICAL CHARACTERISTICS (continued) REVERSE OUTPUT CURRENT vs OUTPUT VOLTAGE REVERSE OUTPUT CURRENT vs TEMPERATURE 12 1000 TJ = 25°C 10 VIN = 0 V Current flows into OUT pin 8 VIN = 0 V 800 Reverse Output Current – µA Reverse Output Current – mA 6 VOTUPT SA7dAju4s5t0a1ble VOVUOTU=T =VVADAJDJ 4 600 VOTUPTSF7ixAe4d5333.3V VOVUOTUT==33.3.3VV 400 2 0 -2 0 VOTUTPFSi7xAed4533.3 V VOVUTOU=T V=FVBFB 2 4 6 8 Output Voltage – V Figure 21. 200 VOTUPTSA7dAju45s0ta1ble VOVUOTUT==1.12.211VV 0 10 -50 -25 0 25 50 75 100 125 TA – Free-Air Temperature – °C Figure 22. Ripple Rejection – dB RIPPLE REJECTION vs FREQUENCY 80 70 60 50 40 30 VVININ= =2.27.7VV 20 CCININ= =0 0 10 CIVTOCIVARUOOiTURpOU=Tp=iUTlpe=2Tp==7l5e=157°0=00C15.000µ0m5.Fµ0mAV5F(AcPPVeprpamic) 0 10 100 1010k0 101000k0 Frequency – Hz Figure 23. 10100000k0 10010M00 Load Regulation – mV 20 IOUT = 1.5 A 15 LOAD REGULATION vs TEMPERATURE 10 VOUTTAPdSju7Ast4a5b0l1e 5 0 -5 -10 -15 VOUTTFPiSxe7dA415.818V -20 VOUTTPFiSx7eAd425.255V -25 VOUTTFPiSx7eAd435.33V -30 -35 -50 -25 0 25 50 75 100 125 TA – Free-Air Temperature – °C Figure 24. Copyright © 2008–2011, Texas Instruments Incorporated 11 TPS7A45xx SLVS720D – JUNE 2008 – REVISED AUGUST 2011 TYPICAL CHARACTERISTICS (continued) OUTPUT NOISE VOLTAGE vs FREQUENCY LOAD TRANSIENT RESPONSE 1 COUTC=O1UT0=µ1F0(cµeFramic) IOUT =IOU1T.5=A1.5 A VVIINN == 44..33 VV CCIINN = 10 µFF CCOOUUTT==1100 µµFF(ceramic) www.ti.com 20 mV 0 mV 0.1 VTPOUST7FAix4e5d333.3 V -20 mV VOUT VTOPUST 7AAd4ju5s0t1able 500 mA IOUT 10 mA Outpuutt NNooiisseeVVolotltaaggee––µµV/VÖRHMzS Load Current Change in Outupt Voltage 0.01 10 100 1k 10k Frequency - Hz Figure 25. 100k LOAD TRANSIENT RESPONSE VVIINN == 44..33VV CIINN==1100µµFF CCOOUUTT==1100µµFF(ceramic) VOUT 20 mV Outupt Voltage Change in 0 mV -20 mV 1.5 A IOUT 10 mA 500 µs per division Figure 26. Load Current 500 µs per division Figure 27. 12 Copyright © 2008–2011, Texas Instruments Incorporated TPS7A45xx www.ti.com SLVS720D – JUNE 2008 – REVISED AUGUST 2011 APPLICATION INFORMATION The TPS7A45xx series are 1.5-A low-dropout regulators optimized for fast transient response. The devices are capable of supplying 1.5 A at a dropout voltage of 300 mV. The low operating quiescent current (1 mA) drops to less than 1 μA in shutdown. In addition to the low quiescent current, the TPS7A45xx regulators incorporate several protection features that make them ideal for use in battery-powered systems. The devices are protected against both reverse input and reverse output voltages. In battery-backup applications where the output can be held up by a backup battery when the input is pulled to ground, the TPS7A45xx acts as if it has a diode in series with its output and prevents reverse current flow. Additionally, in dual-supply applications where the regulator load is returned to a negative supply, the output can be pulled below ground by as much as (20 V - VIN) and still allow the device to start and operate. Typical Applications VIN > 3 V 10 µF (ceramic) IN OUT TPS7A4525 SHDN SENSE GND 10 µF (ceramic) 2.5 V at 1.5 A Figure 29. 3.3 V to 2.5 V Regulator VIN > 2.7 V C1 + 10 µF R5 0.01 W R1 1 kW R2 80.6 kW R4 R6 2.2 kW 2.2 kW TPS7A4518 IN OUT SHDN SENSE GND C3 1 µF LOAD R8 100 kW R3 2 kW R7 + 470 kW NOTE: All capacitors are ceramic. C2 - 3.3 µF Figure 30. Adjustable Current Source Copyright © 2008–2011, Texas Instruments Incorporated 13 TPS7A45xx SLVS720D – JUNE 2008 – REVISED AUGUST 2011 VIN > 3.7 V C1 10 µF R1 0.01 W R2 0.01 W SHDN IN OUT TPS7A4533 SHDN SENSE GND IN OUT TPS7A4501 SHDN SENSE GND R3 R4 2.2 kW 2.2 kW + R5 1 kW www.ti.com 3.3 V at 3 A C2 22 µF R6 6.65 kW R7 4.12 kW – C3 0.01 µF NOTE: All capacitors are ceramic. Figure 31. Paralleling Regulators for Higher Output Current RP IN OUT TPS7A4501 VIN SHDN SENSE Load GND RP Figure 32. Kelvin Sense Connection 14 Copyright © 2008–2011, Texas Instruments Incorporated www.ti.com Adjustable Operation The adjustable version of the TPS7A45xx has an output voltage range of 1.21 V to 20 V. The output voltage is set by the ratio of two external resistors as shown in Figure 33. The device maintains the voltage at the ADJ pin at 1.21 V referenced to ground. The current in R1 is then equal to (1.21 V/R1), and the current in R2 is the current in R1 plus the ADJ pin bias current. The ADJ pin bias current, 3 μA at 25°C, flows through R2 into the ADJ pin. The output voltage can be calculated using the formula shown in Figure 33. The value of R1 should be less than 4.17 kΩ to minimize errors in the output voltage caused by the ADJ pin bias current. Note that in shutdown the output is turned off, and the divider current is zero. IN OUT VOUT TPS7A4501 R2 VIN ADJ GND R1 ) VOUT = 1.21 V 1 + R2 R1 + (IADJ)(R2) ) VADJ = 1.21 V IADJ = 3 µA at 25°C Output range = 1.21 V to 20 V Figure 33. Adjustable Operation The adjustable device is tested and specified with the ADJ pin tied to the OUT pin for an output voltage of 1.21 V. Specifications for output voltages greater than 1.21 V are proportional to the ratio of the desired output voltage to 1.21 V: VOUT/1.21 V. For example, load regulation for an output current change of 1 mA to 1.5 A is –3 mV (typ) at VOUT = 1.21 V. At VOUT = 5 V, load regulation is: (5 V/1.21 V)(–3 mV) = –12.4 mV Output Capacitance and Transient Response The TPS7A45xx regulators are designed to be stable with a wide range of output capacitors. The ESR of the output capacitor affects stability, most notably with small capacitors. A minimum output capacitor of 10 μF with an ESR of 3 Ω or less is recommended to prevent oscillations. Larger values of output capacitance can decrease the peak deviations and provide improved transient response for larger load current changes. Bypass capacitors, used to decouple individual components powered by the TPS7A45xx, increase the effective output capacitor value. Extra consideration must be given to the use of Copyright © 2008–2011, Texas Instruments Incorporated TPS7A45xx SLVS720D – JUNE 2008 – REVISED AUGUST 2011 ceramic capacitors. Ceramic capacitors are manufactured with a variety of dielectrics, each with different behavior over temperature and applied voltage. The most common dielectrics used are Z5U, Y5V, X5R and X7R. The Z5U and Y5V dielectrics are good for providing high capacitances in a small package, but exhibit strong voltage and temperature coefficients. When used with a 5-V regulator, a 10-μF Y5V capacitor can exhibit an effective value as low as 1 μF to 2 μF over the operating temperature range. The X5R and X7R dielectrics result in more stable characteristics and are more suitable for use as the output capacitor. The X7R type has better stability across temperature, while the X5R is less expensive and is available in higher values. Voltage and temperature coefficients are not the only sources of problems. Some ceramic capacitors have a piezoelectric response. A piezoelectric device generates voltage across its terminals due to mechanical stress, similar to the way a piezoelectric accelerometer or microphone works. For a ceramic capacitor the stress can be induced by vibrations in the system or thermal transients. Overload Recovery Like many IC power regulators, the TPS7A45xx has safe operating area protection. The safe area protection decreases the current limit as input-to-output voltage increases and keeps the power transistor inside a safe operating region for all values of input-to-output voltage. The protection is designed to provide some output current at all values of input-to-output voltage up to the device breakdown. When power is first turned on, as the input voltage rises, the output follows the input, allowing the regulator to start up into very heavy loads. During start up, as the input voltage is rising, the input-to-output voltage differential is small, allowing the regulator to supply large output currents. With a high input voltage, a problem can occur wherein removal of an output short does not allow the output voltage to recover. Other regulators also exhibit this phenomenon, so it is not unique to the TPS7A45xx. The problem occurs with a heavy output load when the input voltage is high and the output voltage is low. Common situations occur immediately after the removal of a short circuit or when the shutdown pin is pulled high after the input voltage has already been turned on. The load line for such a load may intersect the output current curve at two points. If this happens, there are two stable output operating points for the regulator. With this double intersection, the input power supply may need to be cycled down to zero and brought up again to make the output recover. 15 TPS7A45xx SLVS720D – JUNE 2008 – REVISED AUGUST 2011 Output Voltage Noise The TPS7A45xx regulators have been designed to provide low output voltage noise over the 10-Hz to 100-kHz bandwidth while operating at full load. Output voltage noise is typically 35 nV/√Hz over this frequency bandwidth for the TPS7A4501 (adjustable version). For higher output voltages (generated by using a resistor divider), the output voltage noise is gained up accordingly. This results in RMS noise over the 10-Hz to 100-kHz bandwidth of 14 μVRMS for the TPS7A4501, increasing to 38 μVRMS for the TPS7A4533. Higher values of output voltage noise may be measured when care is not exercised with regard to circuit layout and testing. Crosstalk from nearby traces can induce unwanted noise onto the output of the TPS7A45xx. Power-supply ripple rejection must also be considered; the TPS7A45xx regulators do not have unlimited power-supply rejection and pass a small portion of the input noise through to the output. Thermal Considerations The power handling capability of the device is limited by the maximum rated junction temperature (125°C). The power dissipated by the device is made up of two components: 1. Output current multiplied by the input/output voltage differential: IOUT(VIN – VOUT) 2. GND pin current multiplied by the input voltage: IGNDVIN. www.ti.com The GND pin current can be found using the GND Pin Current graphs in Typical Characteristics. Power dissipation is equal to the sum of the two components listed above. The TPS7A45xx series regulators have internal thermal limiting designed to protect the device during overload conditions. For continuous normal conditions, the maximum junction temperature rating of 125°C must not be exceeded. It is important to give careful consideration to all sources of thermal resistance from junction to ambient. Additional heat sources mounted nearby must also be considered. For surface-mount devices, heat sinking is accomplished by using the heat-spreading capabilities of the PC board and its copper traces. Copper board stiffeners and plated through-holes can also be used to spread the heat generated by power devices. Table 1 lists thermal resistance for several different board sizes and copper areas. All measurements were taken in still air on 1/16" FR-4 board with 1-oz copper. Table 1. Thermal Data COPPER AREA TOPSIDE(1) BACKSIDE BOARD AREA THERMAL RESISTANCE (JUNCTION TO AMBIENT) 2500 mm2 1000 mm2 125 mm2 KTT Package (5-Pin TO-263) 2500 mm2 2500 mm2 2500 mm2 2500 mm2 2500 mm2 2500 mm2 23°C/W 25°C/W 33°C/W (1) Device is mounted on topside. 16 Copyright © 2008–2011, Texas Instruments Incorporated www.ti.com Calculating Junction Temperature Example: Given an output voltage of 3.3 V, an input voltage range of 4 V to 6 V, an output current range of 0 mA to 500 mA, and a maximum ambient temperature of 50°C, what is the maximum junction temperature? The power dissipated by the device is equal to: IOUT(MAX)(VIN(MAX) – VOUT) + IGND(VIN(MAX)) where, IOUT(MAX) = 500 mA VIN(MAX) = 6 V IGND at (IOUT = 500 mA, VIN = 6 V) = 10 mA So, P = 500 mA × (6 V – 3.3 V) + 10 mA × 6 V = 1.41 W Using a KTT package, the thermal resistance is in the range of 23°C/W to 33°C/W, depending on the copper area. So the junction temperature rise above ambient is approximately equal to: 1.41 W × 28°C/W = 39.5°C The maximum junction temperature is then be equal to the maximum junction-temperature rise above ambient plus the maximum ambient temperature or: TJMAX = 50°C + 39.5°C = 89.5°C Protection Features The TPS7A45xx regulators incorporate several protection features which make them ideal for use in battery-powered circuits. In addition to the normal protection features associated with monolithic regulators, such as current limiting and thermal limiting, the devices are protected against reverse input voltages, reverse output voltages and reverse voltages from output to input. Current limit protection and thermal overload protection are intended to protect the device against current overload conditions at the output of the device. For normal operation, the junction temperature should not exceed 125°C. The input of the device withstands reverse voltages of 20 V. Current flow into the device is limited to less than 1 mA (typically less than 100 μA), and no negative voltage appears at the output. The device protects both itself and the load. This provides protection against batteries that can be plugged in backward. TPS7A45xx SLVS720D – JUNE 2008 – REVISED AUGUST 2011 The output of the TPS7A45xx can be pulled below ground without damaging the device. If the input is left open circuit or grounded, the output can be pulled below ground by 20 V. For fixed voltage versions, the output acts like a large resistor, typically 5 kΩ or higher, limiting current flow to typically less than 600 μA. For adjustable versions, the output acts like an open circuit; no current flows out of the pin. If the input is powered by a voltage source, the output sources the short-circuit current of the device and protects itself by thermal limiting. In this case, grounding the SHDN pin turns off the device and stops the output from sourcing the short-circuit current. The ADJ pin of the adjustable device can be pulled above or below ground by as much as 7 V without damaging the device. If the input is left open circuit or grounded, the ADJ pin acts like an open circuit when pulled below ground and like a large resistor (typically 5 kΩ) in series with a diode when pulled above ground. In situations where the ADJ pin is connected to a resistor divider that would pull the ADJ pin above its 7-V clamp voltage if the output is pulled high, the ADJ pin input current must be limited to less than 5 mA. For example, a resistor divider is used to provide a regulated 1.5-V output from the 1.21-V reference when the output is forced to 20 V. The top resistor of the resistor divider must be chosen to limit the current into the ADJ pin to less than 5 mA when the ADJ pin is at 7 V. The 13-V difference between OUT and ADJ divided by the 5-mA maximum current into the ADJ pin yields a minimum top resistor value of 2.6 kΩ. In circuits where a backup battery is required, several different input/output conditions can occur. The output voltage may be held up while the input is either pulled to ground, pulled to some intermediate voltage, or is left open circuit. When the IN pin of the TPS7A45xx is forced below the OUT pin or the OUT pin is pulled above the IN pin, input current typically drops to less than 2 μA. This can happen if the input of the device is connected to a discharged (low voltage) battery and the output is held up by either a backup battery or a second regulator circuit. The state of the SHDN pin has no effect on the reverse output current when the output is pulled above the input. Copyright © 2008–2011, Texas Instruments Incorporated 17 TPS7A45xx SLVS720D – JUNE 2008 – REVISED AUGUST 2011 REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. www.ti.com Changes from Revision C (December, 2010) to Revision D Page • Replaced the Dissipation Ratings table with the Thermal Information table ........................................................................ 2 18 Copyright © 2008–2011, Texas Instruments Incorporated PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 PACKAGING INFORMATION Orderable Device TPS7A4501DCQR TPS7A4501DCQT TPS7A4501KTTR TPS7A4515DCQR TPS7A4515DCQT TPS7A4515KTTR TPS7A4515KTTRG3 TPS7A4515KTTT TPS7A4518DCQR TPS7A4518DCQT TPS7A4518KTTR TPS7A4518KTTRG3 TPS7A4518KTTT TPS7A4525DCQR TPS7A4525DCQT TPS7A4525KTTR TPS7A4525KTTRG3 Status Package Type Package Pins Package Eco Plan Lead/Ball Finish MSL Peak Temp Op Temp (°C) (1) Drawing Qty (2) (3) ACTIVE SOT-223 DCQ 6 2500 Green (RoHS CU NIPDAU Level-2-260C-1 YEAR -40 to 125 & no Sb/Br) ACTIVE SOT-223 DCQ 6 250 Green (RoHS CU NIPDAU Level-2-260C-1 YEAR -40 to 125 & no Sb/Br) ACTIVE DDPAK/ TO-263 KTT 5 500 Green (RoHS & no Sb/Br) CU SN Level-3-245C-168 HR -40 to 125 ACTIVE SOT-223 DCQ 6 2500 Green (RoHS CU NIPDAU Level-2-260C-1 YEAR -40 to 125 & no Sb/Br) ACTIVE SOT-223 DCQ 6 250 Green (RoHS CU NIPDAU Level-2-260C-1 YEAR & no Sb/Br) ACTIVE DDPAK/ TO-263 KTT 5 500 Green (RoHS & no Sb/Br) CU SN Level-3-245C-168 HR -40 to 125 ACTIVE DDPAK/ TO-263 KTT 5 500 Green (RoHS & no Sb/Br) CU SN Level-3-245C-168 HR -40 to 125 PREVIEW DDPAK/ TO-263 KTT 5 TBD Call TI Call TI -40 to 125 ACTIVE SOT-223 DCQ 6 2500 Green (RoHS CU NIPDAU Level-2-260C-1 YEAR -40 to 125 & no Sb/Br) ACTIVE SOT-223 DCQ 6 250 Green (RoHS CU NIPDAU Level-2-260C-1 YEAR & no Sb/Br) ACTIVE DDPAK/ TO-263 KTT 5 500 Green (RoHS & no Sb/Br) CU SN Level-3-245C-168 HR -40 to 125 ACTIVE DDPAK/ TO-263 KTT 5 500 Green (RoHS & no Sb/Br) CU SN Level-3-245C-168 HR -40 to 125 PREVIEW DDPAK/ TO-263 KTT 5 TBD Call TI Call TI -40 to 125 ACTIVE SOT-223 DCQ 6 2500 Green (RoHS CU NIPDAU Level-2-260C-1 YEAR -40 to 125 & no Sb/Br) ACTIVE SOT-223 DCQ 6 250 Green (RoHS CU NIPDAU Level-2-260C-1 YEAR & no Sb/Br) ACTIVE DDPAK/ TO-263 KTT 5 500 Green (RoHS & no Sb/Br) CU SN Level-3-245C-168 HR -40 to 125 ACTIVE DDPAK/ TO-263 KTT 5 500 Green (RoHS & no Sb/Br) CU SN Level-3-245C-168 HR -40 to 125 Top-Side Markings (4) PS7A4501 PS7A4501 TPS7A4501 PS7A4515 PS7A4515 TPS7A4515 TPS7A4515 PS7A4518 PS7A4518 TPS7A4518 TPS7A4518 PS7A4525 PS7A4525 TPS7A4525 TPS7A4525 Samples Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 Orderable Device TPS7A4533DCQR TPS7A4533DCQT TPS7A4533KTTR Status Package Type Package Pins Package Eco Plan Lead/Ball Finish MSL Peak Temp Op Temp (°C) (1) Drawing Qty (2) (3) ACTIVE SOT-223 DCQ 6 2500 Green (RoHS CU NIPDAU Level-2-260C-1 YEAR -40 to 125 & no Sb/Br) ACTIVE SOT-223 DCQ 6 250 Green (RoHS CU NIPDAU Level-2-260C-1 YEAR -40 to 125 & no Sb/Br) ACTIVE DDPAK/ TO-263 KTT 5 500 Green (RoHS & no Sb/Br) CU SN Level-3-245C-168 HR -40 to 125 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. Top-Side Markings (4) PS7A4533 PS7A4533 TPS7A4533 (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) Multiple Top-Side Markings will be inside parentheses. Only one Top-Side Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Top-Side Marking for that device. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. OTHER QUALIFIED VERSIONS OF TPS7A4501 : Samples Addendum-Page 2 www.ti.com • Military: TPS7A4501M NOTE: Qualified Version Definitions: • Military - QML certified for Military and Defense Applications PACKAGE OPTION ADDENDUM 11-Apr-2013 Addendum-Page 3 www.ti.com TAPE AND REEL INFORMATION PACKAGE MATERIALS INFORMATION 25-Jun-2013 *All dimensions are nominal Device Package Package Pins Type Drawing TPS7A4501DCQR SOT-223 DCQ 6 TPS7A4501DCQT SOT-223 DCQ 6 TPS7A4501KTTR DDPAK/ KTT 5 TO-263 TPS7A4515DCQR SOT-223 DCQ 6 TPS7A4515DCQT SOT-223 DCQ 6 TPS7A4515KTTR DDPAK/ KTT 5 TO-263 TPS7A4518DCQR SOT-223 DCQ 6 TPS7A4518DCQT SOT-223 DCQ 6 TPS7A4518KTTR DDPAK/ KTT 5 TO-263 TPS7A4525DCQR SOT-223 DCQ 6 TPS7A4525DCQT SOT-223 DCQ 6 TPS7A4525KTTR DDPAK/ KTT 5 TO-263 TPS7A4533DCQR SOT-223 DCQ 6 TPS7A4533DCQT SOT-223 DCQ 6 TPS7A4533KTTR DDPAK/ KTT 5 SPQ 2500 250 500 Reel Reel A0 B0 K0 P1 W Pin1 Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant (mm) W1 (mm) 330.0 12.4 6.8 7.3 1.88 8.0 12.0 Q3 177.8 12.4 7.05 7.45 1.88 8.0 12.0 Q3 330.0 24.4 10.6 15.8 4.9 16.0 24.0 Q2 2500 330.0 12.4 7.1 7.45 1.88 8.0 12.0 Q3 250 177.8 12.4 7.05 7.45 1.88 8.0 12.0 Q3 500 330.0 24.4 10.6 15.8 4.9 16.0 24.0 Q2 2500 330.0 12.4 7.1 7.45 1.88 8.0 12.0 Q3 250 177.8 12.4 7.05 7.45 1.88 8.0 12.0 Q3 500 330.0 24.4 10.6 15.8 4.9 16.0 24.0 Q2 2500 330.0 12.4 7.1 7.45 1.88 8.0 12.0 Q3 250 177.8 12.4 7.05 7.45 1.88 8.0 12.0 Q3 500 330.0 24.4 10.6 15.8 4.9 16.0 24.0 Q2 2500 330.0 12.4 7.1 7.45 1.88 8.0 12.0 Q3 250 177.8 12.4 7.05 7.45 1.88 8.0 12.0 Q3 500 330.0 24.4 10.6 15.8 4.9 16.0 24.0 Q2 Pack Materials-Page 1 www.ti.com Device PACKAGE MATERIALS INFORMATION 25-Jun-2013 Package Package Pins Type Drawing TO-263 SPQ Reel Reel A0 B0 K0 P1 W Pin1 Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant (mm) W1 (mm) *All dimensions are nominal Device TPS7A4501DCQR TPS7A4501DCQT TPS7A4501KTTR TPS7A4515DCQR TPS7A4515DCQT TPS7A4515KTTR TPS7A4518DCQR TPS7A4518DCQT TPS7A4518KTTR TPS7A4525DCQR TPS7A4525DCQT TPS7A4525KTTR TPS7A4533DCQR TPS7A4533DCQT TPS7A4533KTTR Package Type Package Drawing Pins SOT-223 DCQ 6 SOT-223 DCQ 6 DDPAK/TO-263 KTT 5 SOT-223 DCQ 6 SOT-223 DCQ 6 DDPAK/TO-263 KTT 5 SOT-223 DCQ 6 SOT-223 DCQ 6 DDPAK/TO-263 KTT 5 SOT-223 DCQ 6 SOT-223 DCQ 6 DDPAK/TO-263 KTT 5 SOT-223 DCQ 6 SOT-223 DCQ 6 DDPAK/TO-263 KTT 5 SPQ 2500 250 500 2500 250 500 2500 250 500 2500 250 500 2500 250 500 Length (mm) 358.0 180.0 340.0 358.0 180.0 340.0 358.0 180.0 340.0 358.0 180.0 340.0 358.0 180.0 340.0 Width (mm) 335.0 180.0 340.0 335.0 180.0 340.0 335.0 180.0 340.0 335.0 180.0 340.0 335.0 180.0 340.0 Height (mm) 35.0 85.0 38.0 35.0 85.0 38.0 35.0 85.0 38.0 35.0 85.0 38.0 35.0 85.0 38.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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