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 over temperature), and low ground current.

Specifications and features

• 3.0A 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:
− MIC37300: 3-pin S-Pak fixed voltages
− MIC37301: 5-pin S-Pak or 8-pin ePad SOIC fixed voltages with flag
− MIC37302: 5-pin adjustable voltage
− MIC37303: 8-pin ePad SOIC, DFN adjustable voltage with flag
• Excellent line and load regulation specifications
• Thermal-shutdown and current-limit protection
• Reverse-leakage protection
• Low profile S-Pak package

Application Scenarios

• LDO linear regulator for low-voltage digital IC
• PC add-in cards
• High-efficiency linear power supplies
• SMPS post regulator
• Battery charger

Comparison

• High precision, ultra-low dropout voltage
• Wide input voltage range
• Stable with ceramic or tantalum capacitor
• Excellent line and load regulation specifications
• Thermal-shutdown and current-limit protection

• Low ground current
• Low profile S-Pak package