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General Description

The MAX882/MAX883/MAX884 linear regulators maximize battery life by combining ultra-low supply currents and low dropout voltages. They feature 200mA output current capability at up to +125°C junction temperature and come in a 1.5W SOIC package. The 1.5W package (compared to 0.47W for standard SOIC packages) allows a wider operating range for the input voltage and output current. The MAX882/MAX883/MAX884 use a P channel MOSFET pass transistor to maintain a low 11μA (15μA max) supply current from no-load to the full 200mA output. Unlike earlier bipolar regulators, there are no PNP base current losses that increase with output current. And, in dropout, the MOSFET does not suffer from excessive base currents that occur when PNP transistors go into saturation. Typical dropout voltages are 220mV at 5V and 200mA, or 320mV at 3.3V and 200mA.

Features

? Guaranteed 200mA Output Current at TJ = +125°C, with Foldback Current Limiting

? High-Power (1.5W) 8-Pin SO Package

? Dual Mode? Operation: Fixed or Adjustable Output from 1.25V to 11V

? Large Input Range (2.7V to 11.5V)

? Internal 1.1? P-Channel Pass Transistor Draws No Base Current

? Low 220mV Dropout Voltage at 200mA Output Current

? 11μA Typical Quiescent Current

? 1μA (max) Shutdown Mode or 7μA (typ) Standby Mode

? Low-Battery Detection Comparator

? Reverse-Current Protection

? Thermal Overload Protection

Applications

Pagers and Cellular Phones

3.3V and 5V Regulators

1.25V to 11V Adjustable Regulators

High-Efficiency Linear Regulators

Battery-Powered Devices

Portable Instruments

Solar-Powered Instruments