General Description

The MIC5233 is a 100mA highly accurate, low dropout regulator with high input voltage and ultra-low ground current. This combination of high voltage and low ground current makes the MIC5233 ideal for multi-cell Li-Ion battery systems.

A μCap LDO design, the MIC5233 is stable with either ceramic or tantalum output capacitor. It only requires a 2.2μF capacitor for stability.

Features of the MIC5233 include enable input, thermal shutdown, current-limit, reverse-battery protection, and reverse-leakage protection.

Available in fixed and adjustable output voltage versions, the MIC5233 is offered in the IttyBitty? SOT-23-5 and SOT223-3 package with a junction temperature range of ?40°C to +125°C.

特性 Features

? Wide input voltage range: 2.3V to 36V

? Ultra-low ground current: 18μA

? Low dropout voltage of 270mV at 100mA

? High output accuracy of ±2.0 over temperature

? μCap: stable with ceramic or tantalum capacitors

? Excellent line and load regulation specifications

? Zero shutdown current

? Reverse-battery protection

? Reverse-leakage protection

? Thermal-shutdown and current-limit protection

? IttyBitty? SOT-23-5 and SOT-223-3 packages

Applications

? Keep-alive supply in notebook and portable computers

? USB power supply

? Logic supply for high-voltage batteries

? Automotive electronics

? Battery-powered systems

? 3 ? 4 cell Li-Ion battery input range