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General Description

The MIC5232 is an ultra-low quiescent current, low dropout linear regulator that is capable of operating from a single-cell lithium ion battery. Consuming only 1.8μA of quiescent current while operating, the MIC5232 is ideal for stand-by applications like powering real-time clocks or memory in battery operated electronics.

The MIC5232 is capable of providing 10mA of output current and has low output noise, providing a small, efficient solution ideal for any keep-alive application. This includes reverse current protection, keeping reverse leakage (VOUT > VIN) down to 20nA.

The MIC5232 is a μCap design, operating with very small ceramic output capacitors for stability, reduction of required board space and component cost.

The MIC5232 is available in fixed output voltages in the miniature 6-pin 2mm x 2mm MLF? package and thin SOT-23-5 package with an operating junction temperature range of -40°C to 125°C.

Features

? Input voltage range: 2.7V to 7.0V

? Ultra-low Iq: Only 1.8μA operating current

? Stable with 0.47μF ceramic output capacitor

? Low dropout voltage of 100mV @ 10mA

? Reverse Battery Protection

? High output accuracy:

– +2.0 initial accuracy

– +3.0 over temperature

? Logic-Level Enable Input

? Miniature 6-pin 2mm x 2mm MLF package

? Lead-Free Thin SOT-23-5 Package

? Tight Load and Line Regulation

Applications

? Real-Time Clock Power Supply

? Stand-by Power Supply

? SRAM Memory Back-up Supply

? Cellular Telephones and Notebook Computers