LM2575HV Datasheet (PDF) Download
National Semiconductor
LM2575HV

Description

The LM2575 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an adjustable output version.

Key Features

  • 3.3V, 5V, 12V, 15V, and adjustable output versions
  • Adjustable version output voltage range,
  • 23V to 37V (57V for HV version) ±4% max over line and load conditions
  • Guaranteed 1A output current
  • Wide input voltage range, 40V up to 60V for HV version
  • Requires only 4 external components
  • 52 kHz fixed frequency internal oscillator
  • TTL shutdown capability, low power standby mode
  • High efficiency
  • Uses readily available standard inductors