LM2576-12WU Maximum Output Current, Microchip, LM2576-12WU Adjustable Switching Regulator, 1-Channel 3A 5-PinD2PAK

The LM2576 series of monolithic integrated circuits provide all the active functions for a step-down (buck) switching regulator. Fixed versions are available with a 3.3V, 5V, or 12V fixed output. Adjustable versions have an output voltage range from 1.23V to 37V. Both versions are capable of driving a 3A load with excellent line and load regulation.
Additional Features:3.3V, 5V, 12V, and adjustable output versionsVoltage over specified line and load conditions:Fixed version: ±3% max. output voltageAdjustable version: ±2% max. feedback voltage Guaranteed 3A output currentWide input voltage range: 4V to 40VWide output voltage range: 1.23V to 37VRequires only 4 external components52kHz fixed frequency internal oscillatorLow power standby mode IQ typically 200μA80% efficiency (adjustable version typically 80%)Uses readily available standard inductorsThermal shutdown and current limit protection100% electrical thermal limit burn-in