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MAX1651 Step-Down DC-DC Controllers

MAX1651 Description

19-0305; Rev 2; 9/95 5V/3.3V or Adjustable, High-Efficiency, Low-Dropout, Step-Down DC-DC Controllers _______________General .
The MAX1649/MAX1651 BiCMOS, step-down, DC-DC switching controllers provide high efficiency over loads ranging from 1mA to more than 2.

MAX1651 Features

* o o o o o o o More than 90% Efficiency (10mA to 1.5A Loads) More than 12.5W Output Power Less than 0.3V Dropout Voltage at 500mA 100µA Max Quiescent Supply Current 5µA Max Shutdown Supply Current 16V Max Input Voltage 5V (MAX1649), 3.3V (MAX1651), or Adjustable Output Voltage o Current-Limited Contr

MAX1651 Applications

* PDAs High-Efficiency Step-Down Regulation 5V-to-3.3V Green PC Applications Battery-Powered Applications
* Dice are tested at TA = +25°C. __________Typical Operating Circuit INPUT 3.6V TO 16V __________________Pin Configuration TOP VIEW V+ OUT 1 2 8 7 GND EXT CS V+ MAX1651 ON/OFF SHDN CS EXT

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Step-Down DC-DC Controllers Maxim
Maxim MAX1651-like datasheet