General Description

The Micrel MIC37300/01/02/03 is a 3.0A low-dropout linear voltage regulator that provides a low-voltage, high-current output with a minimum number of external components. It offers high precision, ultra-low-dropout (500mV overtemperature), and low-ground current.

Features

• 3.0A minimum guaranteed output current

• 500mV maximum dropout-voltage overtemperature

– 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:

– MIC37300—3-pin fixed voltages

– MIC37301—5-pin S-Pak or 8-pin e-Pad SOIC fixed voltages with flag

– MIC37302—5-pin adjustable voltage

– MIC37303—8-pin e-Pad SOIC adjustable

voltage with flag

• Excellent line and load regulation specifications

• Thermal shutdown and current-limit protection

• Reverse-leakage protection

• Low profile S-Pak package

Applications

• LDO linear regulator for low-voltage digital IC

• PC add-in cards

• High-efficiency linear power supplies

• SMPS post regulator

• Battery charger