Part LM1575
Description SIMPLE SWITCHER 1A Step-Down Voltage Regulator
Category Voltage Regulator
Manufacturer National Semiconductor
Size 214.64 KB
National Semiconductor
LM1575

Overview

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.

  • 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