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LM2574 Datasheet Step-down Switching Regulator

Manufacturer: onsemi

Overview: Regulator, Step-Down Switching, Adjustable Output Voltage, 0.5 A LM2574 The LM2574 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 0.5 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 LM2574 are offered by several different inductor manufacturers. Since the LM2574 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 most cases, the power dissipated by the LM2574 regulator is so low, that the copper traces on the printed circuit board are normally the only heatsink needed and no additional heatsinking is required.

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 60 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 Versi.

LM2574 Distributor & Price

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Similar Datasheet

Brand Logo Part Number Description Manufacturer
National Semiconductor Logo LM2574 SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator National Semiconductor
Micrel Semiconductor Logo LM2574 52kHz Simple 0.5A Buck Regulator Micrel Semiconductor
Texas Instruments Logo LM2574 0.5-A Step-Down Voltage Regulator Texas Instruments
Motorola Logo LM2574 STEP-DOWN VOLTAGE REGULATOR Motorola
Texas Instruments Logo LM2574HV 0.5-A Step-Down Voltage Regulator Texas Instruments

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