150mA LOW-DROPOUT REGULATOR, ULTRALOW-POWER, IQ 500nA ,

WITH PIN-SELECTABLE, DUAL-LEVEL OUTPUT VOLTAGE

DESCRIPTION

The VSET pin allows the end user to switch between two voltage

levels on-the-fly through a microprocessor-compatible input. This LDO

is designed specifically for battery-powered applications where

dual-level voltages are needed. With ultralow IQ (500nA),

microprocessors, memory cards, and smoke detectors are ideal

applications for this device.

FEATURES

* Low IQ: 500 nA

* 150mA, Low-Dropout Regulator With Pin-Selectable Dual Voltage Level Output

* Low Dropout: 200 mV at 150mA

* 3% Accuracy Over Load, Line, and Temperature

* Available in Dual-Level, Fixed-Output Voltages From 1.5V to 4.2V

* VSET Pin Toggles Output Voltage Between Two Factory-Programmed
  Voltage Levels

* Stable with a 1.0μF Ceramic Capacitor

* Thermal Shutdown and Overcurrent Protection

* CMOS Logic Level-Compatible Enable Pin