General Description

The Micrel MIC37150/51/52/53 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 over temperature), and low ground current.

Features

• 1.5A minimum guaranteed output current

• 500mV maximum dropout voltage over temperature

– Ideal for 3.0V to 2.5V conversion

– Ideal for 2.5V to 1.8V, 1.65V, or 1.5V conversion

• Stable with ceramic or tantalum capacitor

• Wide input voltage range

– VIN: 2.25V to 6.0V

• ±1.0% initial output tolerance

• Fixed and adjustable output voltages

– MIC37150—3-pin fixed voltages

– MIC37151—5-pin S-Pak or 8-pin e-Pad SOIC fixed voltages with flag

– MIC37152—5-pin adjustable voltage

– MIC37153—8-pin adjustable voltage with flag

• Excellent line and load regulation specifications

• Logic controlled shutdown

• Thermal shutdown and current limit protection

• Reverse-leakage protection

• Low profile 3 or 5-pin S-Pak packages or 8-pin e-Pad SOIC

Applications

• LDO linear regulator for low-voltage digital IC

• PC add-in cards

• High efficiency linear power supplies

• SMPS post regulator

• Battery charger