General Description

The MIC5233 is a 100 mA, 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 multicell Li-Ion battery systems.

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

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

Available in fixed and adjustable output voltage versions, the MIC5233 is offered in the 5-lead SOT23 and 3-lead SOT223 packages with a junction temperature range of –40°C to +125°C.

Features

•AEC-Q100 Qualified and PPAP Capable; Available for 5-Lead SOT23 Package Only

•Wide Input Voltage Range: 2.3V to 36V

•Ultra-Low Ground Current: 18 μA

•Low Dropout Voltage of 270 mV at 100 mA

•High Output Accuracy of ±2.0 Overtemperature

•μCap: Stable with Ceramic or Tantalum Capacitors

•Excellent Line and Load Regulation Specifications

•Near Zero Shutdown Current: Typical 0.1 μA

•Reverse Battery Protection

•Reverse Leakage Protection

•Thermal Shutdown and Current Limit Protection

•5-Lead SOT23 and 3-Lead SOT223 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