LM2575YN

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Microchip Technology

1A STEP-DOWN SMPS REGULATOR 16 PDIP .300IN TUBE ROHS COMPLIANT: YES

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LM2575YN

Active

Microchip Technology

1A STEP-DOWN SMPS REGULATOR 16 PDIP .300IN TUBE ROHS COMPLIANT: YES

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Description Specifications Series Pricing CAD Documents

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.

Technical Specifications

Parameters and characteristics for this part

Specification	LM2575YN

Current - Output	1 A
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	Adjustable
Package Length	0.3 in
Package Name	16-DIP
Package Width	7.62 mm
Synchronous Rectifier	No
Topology	Buck
Voltage - Input (Max)	40 V
Voltage - Input (Min)	4 V
Voltage - Output (Max)	37 V
Voltage - Output (Min/Fixed)	1.23 V

LM2575 Series

1A Step-Down SMPS Regulator

Part	Topology	Function	Voltage - Input (Min)	Package Name	Output Configuration	Operating Temperature (Max)	Operating Temperature (Min)	Output Type	Voltage - Output (Max)	Frequency - Switching	Voltage - Input (Max)	Package Length	Package Width	Voltage - Output (Min/Fixed)	Number of Outputs	Mounting Type	Current - Output	Synchronous Rectifier	Package Leads	Package / Case
Microchip Technology LM2575YWM	Buck	Step-Down	4 V	24-SOIC	Positive	125 °C	-40 °C	Adjustable	37 V	52 kHz	40 V	0.295 in	7.5 mm	1.23 V	1	Surface Mount	1 A	No
Microchip Technology LM2575-12YN	Buck	Step-Down	4 V	16-DIP	Positive	125 °C	-40 °C	Fixed		52 kHz	40 V	0.3 in	7.62 mm	12 V	1	Through Hole	1 A	No
Microchip Technology LM2575-12YWM	Buck	Step-Down	4 V	24-SOIC	Positive	125 °C	-40 °C	Fixed		52 kHz	40 V	0.295 in	7.5 mm	12 V	1	Surface Mount	1 A	No
Microchip Technology LM2575-3.3BN	Buck	Step-Down	4 V	16-DIP	Positive	125 °C	-40 °C	Fixed		52 kHz	40 V	0.3 in	7.62 mm	3.3 V	1	Through Hole	1 A	No
Microchip Technology LM2575-5.0WU-TR	Buck	Step-Down	4 V	D2PAK TO-263-5	Positive	125 °C	-40 °C	Fixed		52 kHz	40 V			5 V	1	Surface Mount	1 A	No	5 Leads
Microchip Technology LM2575-3.3BT	Buck	Step-Down	4 V	TO-220-5	Positive	125 °C	-40 °C	Fixed		52 kHz	40 V			3.3 V	1	Through Hole	1 A	No		TO-220-5
Microchip Technology LM2575-3.3YWM-TR	Buck	Step-Down	4 V	24-SOIC	Positive	125 °C	-40 °C	Fixed		52 kHz	40 V	0.295 in	7.5 mm	3.3 V	1	Surface Mount	1 A	No
Microchip Technology LM2575-5.0WT	Buck	Step-Down	4 V	TO-220-5	Positive	125 °C	-40 °C	Fixed		52 kHz	40 V			5 V	1	Through Hole	1 A	No		TO-220-5
Microchip Technology LM2575BWM-TR	Buck	Step-Down	4 V	24-SOIC	Positive	125 °C	-40 °C	Adjustable	37 V	52 kHz	40 V	0.295 in	7.5 mm	1.23 V	1	Surface Mount	1 A	No
Microchip Technology LM2575YN	Buck	Step-Down	4 V	16-DIP	Positive	125 °C	-40 °C	Adjustable	37 V	52 kHz	40 V	0.3 in	7.62 mm	1.23 V	1	Through Hole	1 A	No

Pricing

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

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LM2575YN | Datasheet

Product Change Notice EN

LM2575 - 52 kHz Simple 1A Buck Regulator