LM2574 Datasheet 52khz Simple 0.5a Buck Regulator

Manufacturer: Micrel Semiconductor

Overview: LM2574 Micrel, Inc. LM2574 52kHz Simple 0.5A Buck Regulator General.

Datasheet Details

Part number	LM2574
Manufacturer	Micrel Semiconductor
File Size	185.12 KB
Description	52kHz Simple 0.5A Buck Regulator
Datasheet	LM2574_MicrelSemiconductor.pdf

General Description

The LM2574 family is a series of easy to use ﬁxed and adjustable switching voltage regulators.

The LM2574 contains all of the active circuitry necessary to construct a stepdown (buck) switching regulator and requires a minimum of external components.

The LM2574 is available in 3.3V and 5V ﬁxed output versions, or an adjustable version with an output voltage range of 1.23V to 37V.

Key Features

3.3V, 5V, 12V, and adjustable output versions.
Adjustable version output 1.23V to 37V ±4% max. over line and load conditions.
Guaranteed 0.5A output current.
Wide input voltage, up to 40V.
Thermal shutdown and current limit protection.
Requires only 4 external components.
Shutdown capability (standby mode).
Low power standby mode < 200µA Typical.
High-efﬁciency.
52kHz ﬁxed frequency internal oscillator.

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