LM2574-12YN

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Microchip Technology

DC/DC CONV, BUCK, 0.5A, 52KHZ, 85DEG C ROHS COMPLIANT: YES

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DocumentsDatasheet Product Change Notice EN +1

LM2574-12YN

Active

Microchip Technology

DC/DC CONV, BUCK, 0.5A, 52KHZ, 85DEG C ROHS COMPLIANT: YES

Deep-Dive with AI

DocumentsDatasheet Product Change Notice EN +1

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LM2574-12YN

Current - Output	500 mA
Frequency - Switching	52 kHz
Function	Step-Down
Mounting Type	Through Hole
Number of Outputs	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	0.3 in
Package / Case	8-DIP
Package / Case	7.62 mm
Supplier Device Package	8-PDIP
Synchronous Rectifier	False
Topology	Buck
Voltage - Output (Min/Fixed)	12 V

LM2574 Series

Part	Topology	Number of Outputs	Output Type	Voltage - Output (Max)	Output Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Min/Fixed)	Package / Case	Package / Case	Package / Case	Function	Mounting Type	Current - Output	Frequency - Switching	Supplier Device Package	Output Type	Voltage - Input (Min) [Min]
Microchip Technology LM2574BWM	Buck	1	Adjustable	37 V	Positive	85 °C	-40 °C	1.23 V	0.295 in	14-SOIC	7.5 mm	Step-Down	Surface Mount	500 mA	52 kHz
Microchip Technology LM2574BN	Buck	1	Adjustable	37 V	Positive	125 ¯C	-40 °C	1.23 V	0.3 in	8-DIP	7.62 mm	Step-Down	Through Hole	500 mA	52 kHz	8-PDIP
Microchip Technology LM2574-12YN	Buck	1			Positive	125 ¯C	-40 °C	12 V	0.3 in	8-DIP	7.62 mm	Step-Down	Through Hole	500 mA	52 kHz	8-PDIP	1.81 mOhm
Microchip Technology LM2574YN	Buck	1	Adjustable	37 V	Positive	125 ¯C	-40 °C	1.23 V	0.3 in	8-DIP	7.62 mm	Step-Down	Through Hole	500 mA	52 kHz	8-PDIP
Microchip Technology LM2574-33BWM	Buck	1			Positive	85 °C	-40 °C	3.3 V	0.295 in	14-SOIC	7.5 mm	Step-Down	Surface Mount	500 mA	52 kHz		1.81 mOhm
Microchip Technology LM2574-12BWM	Buck	1			Positive	85 °C	-40 °C	12 V	0.295 in	14-SOIC	7.5 mm	Step-Down	Surface Mount	500 mA	52 kHz		1.81 mOhm
Microchip Technology LM2574-3.3BN	Buck	1			Positive	125 ¯C	-40 °C	3.3 V	0.3 in	8-DIP	7.62 mm	Step-Down	Through Hole	500 mA	52 kHz	8-PDIP	1.81 mOhm
Microchip Technology LM2574BWM TR	Buck	1	Adjustable	37 V	Positive	125 ¯C	-40 °C	1.23 V	0.295 in	14-SOIC	7.5 mm	Step-Down	Surface Mount	500 mA	52 kHz			4 V
Microchip Technology LM2574-3.3BWM	Buck	1			Positive	85 °C	-40 °C	3.3 V	0.295 in	14-SOIC	7.5 mm	Step-Down	Surface Mount	500 mA	52 kHz		1.81 mOhm
Microchip Technology LM2574-12BN	Buck	1			Positive	125 ¯C	-40 °C	12 V	0.3 in	8-DIP	7.62 mm	Step-Down	Through Hole	500 mA	52 kHz	8-PDIP	1.81 mOhm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 1.21
		25	$ 1.01
		100	$ 0.92
Microchip Direct	TUBE	1	$ 1.21
		25	$ 1.01
		100	$ 0.92
		1000	$ 0.89
		5000	$ 0.88
		10000	$ 0.87
Newark	Each	1	$ 1.26
		10	$ 1.15
		25	$ 1.05
		50	$ 1.00
		100	$ 0.96

Description

General part information

LM2574 Series

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, 5V, and 12V fixed output versions, or an adjustable version with an output voltage range of 1.23V to 37V. Output voltage is guaranteed to ±4% for specified input and load conditions.

The LM2574 can supply 0.5A while maintaining excellent line and load regulation. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.

Documents

Technical documentation and resources

Datasheet

Product Change Notice EN

Datasheet

LM2574 - 52 kHz Simple 0.5A Buck Regulator

Data Sheets