The LM2832 regulator is a monolithic, high frequency, PWMstep-down DC/DC converter in a 6 Pin LLP and a 8 PineMSOP package. It provides all the active functions to providelocal DC/DC conversion with fast transient responseand accurate regulation in the smallest possible PCB area.With a minimum of external components, the LM2832 iseasy to use. The ability to drive 2.0A loads with an internal150 mΩ PMOS switch using state-of-the-art 0.5 μm BiCMOStechnology results in the best power density available. Theworld-class control circuitry allows on-times as low as 30ns,thus supporting exceptionally high frequency conversionover the entire 3V to 5.5V input operating range down to theminimum output voltage of 0.6V. Switching frequency isinternally set to 550 kHz, 1.6 MHz, or 3.0 MHz, allowing theuse of extremely small surface mount inductors and chipcapacitors. Even though the operating frequency is high,efficiencies up to 93% are easy to achieve. External shutdownis included, featuring an ultra-low stand-by current of30 nA. The LM2832 utilizes current-mode control and internalcompensation to provide high-performance regulationover a wide range of operating conditions. Additional featuresinclude internal soft-start circuitry to reduce inrushcurrent, pulse-by-pulse current limit, thermal shutdown, andoutput over-voltage protection.
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