LM2576 Datasheet (National Semiconductor) - SIMPLE SWITCHER 3A Step-Down Voltage Regulator

LM2576, SIMPLE SWITCHER 3A Step-Down Voltage Regulator

The LM2576 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving 3A load with excellent line and load regulation.

These devices are available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an

LM2576 Features

* include a guaranteed ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External shutdown is included, featuring 50 µA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as ther