General Description

The Micrel MIC37139 is a 1.5A low-dropout linear voltage regulator that provides a low-voltage, high-current output with a minimum of external components. It offers high precision, ultra-low dropout (500mV overtemperature), and low ground current.

Features

• 1.5A minimum guaranteed output current

• 500mV maximum dropout voltage over temperature

• Stable with ceramic or tantalum capacitor

• Wide input voltage range: VIN:2.25V to 6.0V

• +1.0 initial output tolerance

• Fixed 1.8V output voltage

• Excellent line and load regulation specifications

• Thermal shutdown and current-limit protection

• Reverse-leakage protection

• Low profile SOT-223 package

Applications

• LDO linear regulator for low-voltage digital IC

• PC add-in cards

• High-efficiency linear power supplies

• SMPS post regulator

• Battery charger

• Set-top boxes

• Digital video recorders

• PowerPC® power supplies

• Multimedia and PC processor supplies