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LM2576 Datasheet Step-down Switching Regulator

Manufacturer: onsemi

Overview: DATA SHEET www.onsemi.com 3.0 A, 15 V, Step-Down Switching Regulator LM2576 The LM2576 series of regulators are monolithic integrated circuits ideally suited for easy and convenient design of a step−down switching regulator (buck converter). All circuits of this series are capable of driving a 3.0 A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5.0 V, 12 V, 15 V, and an adjustable output version. These regulators were designed to minimize the number of external components to simplify the power supply design. Standard series of inductors optimized for use with the LM2576 are offered by several different inductor manufacturers. Since the LM2576 converter is a switch−mode power supply, its efficiency is significantly higher in comparison with popular three−terminal linear regulators, especially with higher input voltages. In many cases, the power dissipated is so low that no heatsink is required or its size could be reduced dramatically. A standard series of inductors optimized for use with the LM2576 are available from several different manufacturers. This feature greatly simplifies the design of switch−mode power supplies.

Key Features

  • include a guaranteed ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency (±2% over 0°C to 125°C). External shutdown is included, featuring 80 mA (typical) standby current. The output switch includes cycle.
  • by.
  • cycle current limiting, as well as thermal shutdown for full protection under fault conditions. Features.
  • 3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions.
  • Adjustable Versio.

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Similar Datasheet

Brand Logo Part Number Description Manufacturer
National Semiconductor Logo LM2576 SIMPLE SWITCHER 3A Step-Down Voltage Regulator National Semiconductor
Micrel Semiconductor Logo LM2576 52kHz Simple 3A Buck Voltage Regulator Micrel Semiconductor
Semtech Corporation Logo LM2576 1A & 3A Miniconverter Switching Regulators Semtech Corporation
Texas Instruments Logo LM2576 3-A Step-Down Voltage Regulator Texas Instruments
Microchip Logo LM2576 52kHz Simple 3A Buck Regulator Microchip

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