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LM2574 Datasheet Simple Switcher 0.5a Step-down Voltage Regulator

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LM2574/LM2574HV SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator June 1999 LM2574/LM2574HV SIMPLE SWITCHER™ 0.

General Description

The LM2574 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 0.5A 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.

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixed-frequency oscillator.

Key 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 thermal shutdown for full protection under fault conditions. Features n 3.3V, 5V, 12V, 15V, and adjustable output versions n Adjustable version output voltage range, 1.23V to 37V (57V for HV version) ±.

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Similar Datasheet

Brand Logo Part Number Description Manufacturer
ON Semiconductor Logo LM2574 Step-Down Switching Regulator ON Semiconductor
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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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