Specification	LM2575-12YWM

Current - Output	1 A
Frequency - Switching	52 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	24-SOIC
Package / Case [custom]	7.5 mm
Package / Case [custom]	0.295 in
Supplier Device Package	24-SOIC
Synchronous Rectifier	False
Topology	Buck
Voltage - Input (Min) [Min]	4 V
Voltage - Output (Min/Fixed)	12 V

LM2575 Series

Part	Current - Output	Output Configuration	Mounting Type	Package / Case [custom]	Package / Case	Package / Case [custom]	Function	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Output (Min/Fixed)	Voltage - Output (Max)	Topology	Supplier Device Package	Output Type	Frequency - Switching	Number of Outputs	Voltage - Input (Min) [Min]	Output Type	Package / Case	Package / Case
Microchip Technology LM2575YWM	1 A	Positive	Surface Mount	7.5 mm	24-SOIC	0.295 in	Step-Down	-40 °C	125 ¯C	1.23 V	37 V	Buck	24-SOIC	Adjustable	52 kHz	1	4 V
Microchip Technology LM2575-12YWM	1 A	Positive	Surface Mount	7.5 mm	24-SOIC	0.295 in	Step-Down	-40 °C	125 ¯C	12 V		Buck	24-SOIC		52 kHz	1	4 V	1.81 mOhm
Microchip Technology LM2575-3.3BN	1 A	Positive	Through Hole		16-DIP		Step-Down	-40 °C	125 ¯C	3.3 V		Buck	16-DIP		52 kHz	1	4 V	1.81 mOhm	0.3 in	7.62 mm
Microchip Technology LM2575-5.0WU-TR	1 A	Positive	Surface Mount		D2PAK (5 Leads + Tab) TO-263-6 TO-263BA		Step-Down	-40 °C	125 ¯C	5 V		Buck	TO-263-5		52 kHz	1	4 V	1.81 mOhm
Microchip Technology LM2575-3.3BT	1 A	Positive	Through Hole		TO-220-5		Step-Down	-40 °C	125 ¯C	3.3 V		Buck	TO-220-5		52 kHz	1	4 V	1.81 mOhm
Microchip Technology LM2575-5.0WT	1 A	Positive	Through Hole		TO-220-5		Step-Down	-40 °C	125 ¯C	5 V		Buck	TO-220-5		52 kHz	1	4 V	1.81 mOhm
Microchip Technology LM2575-5.0BU	1 A	Positive	Surface Mount		D2PAK (5 Leads + Tab) TO-263-6 TO-263BA		Step-Down	-40 °C	125 ¯C	5 V		Buck	TO-263-5		52 kHz	1	4 V	1.81 mOhm
Microchip Technology LM2575-5.0BWM	1 A	Positive	Surface Mount	7.5 mm	24-SOIC	0.295 in	Step-Down	-40 °C	125 ¯C	5 V		Buck	24-SOIC		52 kHz	1	4 V	1.81 mOhm
Microchip Technology LM2575WU	1 A	Positive	Surface Mount		D2PAK (5 Leads + Tab) TO-263-6 TO-263BA		Step-Down	-40 °C	125 ¯C	1.23 V	37 V	Buck	TO-263-5	Adjustable	52 kHz	1	4 V
Microchip Technology LM2575-12WU	1 A	Positive	Surface Mount		D2PAK (5 Leads + Tab) TO-263-6 TO-263BA		Step-Down	-40 °C	125 ¯C	12 V		Buck	TO-263-5		52 kHz	1	4 V	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	279	$ 1.32
Microchip Direct	TUBE	1	$ 1.74
		25	$ 1.45
		100	$ 1.32
		1000	$ 1.27
		5000	$ 1.26
		10000	$ 1.24
Newark	Each	100	$ 1.36

Description

General part information

LM2575 Series

The LM2575 series of monolithic integrated circuits provide all the active functions for a step-down (buck) switching regulator. Fixed versions are available with a 3.3V, 5V, 12V, or 15V fixed output. Adjustable versions have an output voltage range from 1.23V to 37V. Both versions are capable of driving a 1A load with excellent line and load regulation.

These regulators are simple to use because they require a minimum number of external components and include internal frequency compensation and a fixed-frequency oscillator.

The LM2575 series offers a high efficiency replacement for popular three-terminal adjustable linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required.

Documents

Technical documentation and resources

Product Change Notice EN

Datasheet

LM2575 - 52 kHz Simple 1A Buck Regulator

Data Sheets