ESMT/EMP
LDO in SOT-23 Package
General Description
The EMP8733 features ultra-high power supply rejection
ratio, low output voltage noise, low dropout voltage,
low quiescent current and fast transient response. It
guarantees delivery of 300mA output current and
supports preset output voltages ranging from 0.8V to
4.5V with 0.05V increment.
Based on its low quiescent current consumption, the
EMP8733 is ideal for battery-powered applications. The
high power supply rejection ratio of the EMP8733 holds
well for low input voltages typically encountered in
battery-operated systems. The regulator is stable with
small ceramic capacitive loads (1µF typical). The
EMP8733 is Available in miniature 3-pin SOT-23-3
package.
EMP8733
Fast Ultra High-PSRR, Low-Noise 300mA CMOS
Features
300mA guaranteed output current
62dB typical PSRR at 1kHz
110µV RMS output voltage noise (10Hz to 100kHz)
290mV typical dropout at 300mA
57µA typical quiescent current
Fast line and load transient response
2.2V to 5.5V input range
Stable with small ceramic output capacitors
Over temperature and over current protection
±2% output voltage tolerance
Applications
Wireless handsets
PCMCIA cards
DSP core power
Hand-held instruments
Battery-powered systems
Portable information appliances
EMP products are Halogen free and RoHS compliant.
Typical Application
*
Use 2.2μF for V
OUT
< 1.2V
Elite Semiconductor Memory Technology Inc./
Elite MicroPower Inc.
Publication Date
:
Jan. 2010
Revision
:
2.1
1/11
ESMT/EMP
CONNECTION DIAGRAM
SOT-23-3(TOP View)
EMP8733
ORDER INFORMATION
EMP8733-XXVB03GRR
XX
VB03
GRR
Output voltag
SOT-23-3 Package
RoHS & Halogen free
Rating: -40 to 85°C
Package in Tape & Reel
Pin Functions
Name
GND
VOUT
VIN
No.
1
2
3
Function
Ground Pin.
Output Voltage Feedback.
Supply Voltage Input.
Require a minimum input capacitor of close to
1µF to ensure stability and sufficient decoupling from the ground pin.
Order, Mark & Packing Information
Vout
1.2
1.5
1.8
2.5
2.8
3.0
3.3
Marking
Product ID
EMP8733-12VB03GRR
EMP8733-15VB03GRR
EMP8733-18VB03GRR
EMP8733-25VB03GRR
EMP8733-28VB03GRR
EMP8733-30VB03GRR
EMP8733-33VB03GRR
Packing
3K units Tape & Reel
3K units Tape & Reel
3K units Tape & Reel
3K units Tape & Reel
3K units Tape & Reel
3K units Tape & Reel
3K units Tape & Reel
Elite Semiconductor Memory Technology Inc./
Elite MicroPower Inc.
Publication Date
:
Jan. 2010
Revision
:
2.1
2/11
ESMT/EMP
Functional Block Diagram
EMP8733
Elite Semiconductor Memory Technology Inc./
Elite MicroPower Inc.
Publication Date
:
Jan. 2010
Revision
:
2.1
3/11
ESMT/EMP
Absolute Maximum Ratings
(Notes 1, 2)
VIN, VOUT
Storage Temperature Range
Junction Temperature (T
J
)
Lead Temperature (10 sec.)
ESD Rating
Human Body Model
MM
2kV
200V
-0.3V to 6.5V
-65°C to160°C
150°C
240°C
Thermal Resistance (θ
JA
)
3-pin SOT-23-3
EMP8733
250°C/W
Operating Ratings
(Note 1, 2)
Temperature Range
Supply Voltage
-40°C to 85°C
2.2V to 5.5V
Electrical Characteristics
Unless otherwise specified, all limits guaranteed for V
IN
= V
OUT
+1V (Note 3), C
IN
= C
OUT
= 2.2µF, T
A
= 25°C.
Boldface
limits
apply for the operating temperature extremes: -40°C and 85°C.
Symbol
V
IN
V
OUT
Parameter
Input Voltage
Output Voltage
1mA
≤
I
OUT
≤
300mA
ΔV
OTL
I
OUT
I
LIMIT
I
Q
V
DO
Output Voltage Tolerance V
OUT
Maximum Output Current
Output Current Limit
Supply Current
Dropout Voltage (Note4)
Line Regulation
Load Regulation
e
n
Output Voltage Noise
Thermal Shutdown
T
SD
Temperature
Thermal Shutdown
Hysteresis
I
OUT
= 0mA
I
OUT
= 300mA
I
OUT
= 100mA
I
OUT
= 300mA
I
OUT
= 1mA, (V
OUT
+ 1V)
≤
V
IN
≤
5.5V (Note 3)
1mA
≤
I
OUT
≤
300mA
V
OUT
=2.5V, I
OUT
= 10mA, 10Hz
≤
f
≤
100kHz
-0.1
(NOM)
Conditions
Min
2.2
0.8
-2
-3
300
300
Typ
Max
5.5
4.5
+2
+3
Units
V
V
% of
V
OUT (NOM)
mA
+1V
≤
VIN
≤
5.5V
(Note 3)
Average DC Current Rating
450
57
130
90
290
0.01
0.0008
110
165
0.1
mA
µA
mV
%/V
%/mA
µV
RMS
ΔV
OUT
℃
35
Note 1:
Absolute Maximum ratings indicate limits beyond which damage may occur. Electrical specifications do not
apply when operating the device outside of its rated operating conditions.
Note 2:
All voltages are with respect to the potential at the ground pin.
Note 3:
Condition does not apply to input voltages below 2.2V since this is the minimum input operating voltage.
Note 4:
Dropout voltage is measured by reducing V
IN
until V
OUT
drops 100mV from its nominal value at V
IN
-V
OUT
= 1V.
Dropout voltage does not apply to the regulator versions with V
OUT
less than 2.2V.
Elite Semiconductor Memory Technology Inc./
Elite MicroPower Inc.
Publication Date
:
Jan. 2010
Revision
:
2.1
4/11
ESMT/EMP
Typical Performance Characteristics
Unless otherwise specified, VIN = V
OUT (NOM)
+ 1V, C
IN
= C
OUT
= 1.0µF, T
A
= 25°C.
EMP8733
PSRR vs. Frequency
PSRR vs. Frequency
PSRR (dB)
Frequency (Hz)
PSRR vs. Frequency
PSRR (dB)
Frequency (Hz)
PSRR vs. Frequency
PSRR (dB)
PSRR (dB)
Frequency (Hz)
Frequency (Hz)
PSRR vs. Frequency
PSRR vs. Frequency
PSRR (dB)
Frequency (Hz)
PSRR (dB)
Frequency (Hz)
Elite Semiconductor Memory Technology Inc./
Elite MicroPower Inc.
Publication Date
:
Jan. 2010
Revision
:
2.1
5/11
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