Integrated Circuits (ICs)

LM2575HVT-ADJ/NOPB

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SIMPLE SWITCHER 1A STEP-DOWN VOLTAGE REGULATOR

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Search across all available documentation for this part.

DocumentsAN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)Cost-Effective Transformerless Offline Supply for Light Load Applications (Rev. A)+15

Integrated Circuits (ICs)

LM2575HVT-ADJ/NOPB

Active

Texas Instruments

SIMPLE SWITCHER 1A STEP-DOWN VOLTAGE REGULATOR

Deep-Dive with AI

DocumentsAN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)Cost-Effective Transformerless Offline Supply for Light Load Applications (Rev. A)+15

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LM2575HVT-ADJ/NOPB

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 / Case	TO-220-5
Supplier Device Package	TO-220-5
Synchronous Rectifier	False
Topology	Buck
Voltage - Input (Max) [Max]	60 V
Voltage - Input (Min) [Min]	4 V
Voltage - Output (Max)	57 V
Voltage - Output (Min/Fixed)	1.23 V

LM2575-N Series

SIMPLE SWITCHER 1A Step-Down Voltage Regulator

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Part	Package / Case	Number of Outputs	Function	Topology	Mounting Type	Frequency - Switching	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Current - Output	Output Configuration	Voltage - Input (Min) [Min]	Output Type	Supplier Device Package	Voltage - Output (Max)	Output Type	Package / Case	Package / Case	Package / Case [custom]	Package / Case [custom]
Texas Instruments LM2575HVSX-5.0/NOPB	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1	Step-Down	Buck	Surface Mount	52 kHz	-40 °C	125 ¯C	60 V	5 V	1 A	Positive	4 V	1.81 mOhm	TO-263 (DDPAK-5)
Texas Instruments LM2575S-ADJ/NOPB	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1	Step-Down	Buck	Surface Mount	52 kHz	-40 °C	125 ¯C		1.23 V	1 A	Positive	4 V		TO-263 (DDPAK-5)	37 V	Adjustable
Texas Instruments LM2575HVS-12	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1	Step-Down	Buck	Surface Mount	52 kHz	-40 °C	125 ¯C	60 V	12 V	1 A	Positive	4 V	1.81 mOhm	TO-263 (DDPAK-5)
Texas Instruments LM2575HVN-ADJ	16-DIP	1	Step-Down	Buck	Through Hole	52 kHz	-40 °C	125 ¯C	60 V	1.23 V	1 A	Positive	4 V		16-PDIP	57 V	Adjustable	0.3 in	7.62 mm
Texas Instruments LM2575HVT-ADJ	TO-220-5	1	Step-Down	Buck	Through Hole	52 kHz	-40 °C	125 ¯C	60 V	1.23 V	1 A	Positive	4 V		TO-220-5	57 V	Adjustable
Texas Instruments LM2575MX-ADJ/NOPB	24-SOIC	1	Step-Down	Buck	Surface Mount	52 kHz	-40 °C	125 ¯C		1.23 V	1 A	Positive	4 V		24-SOIC	37 V	Adjustable			7.5 mm	0.295 in
Texas Instruments LM2575S-12	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1	Step-Down	Buck	Surface Mount	52 kHz	-40 °C	125 ¯C		12 V	1 A	Positive	4 V	1.81 mOhm	TO-263 (DDPAK-5)
Texas Instruments LM2575HVT-ADJ/NOPB	TO-220-5	1	Step-Down	Buck	Through Hole	52 kHz	-40 °C	125 ¯C	60 V	1.23 V	1 A	Positive	4 V		TO-220-5	57 V	Adjustable
Texas Instruments LM2575HVS-5.0/NOPB	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1	Step-Down	Buck	Surface Mount	52 kHz	-40 °C	125 ¯C	60 V	5 V	1 A	Positive	4 V	1.81 mOhm	TO-263 (DDPAK-5)
Texas Instruments LM2575S-12/NOPB	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	1	Step-Down	Buck	Surface Mount	52 kHz	-40 °C	125 ¯C		12 V	1 A	Positive	4 V	1.81 mOhm	TO-263 (DDPAK-5)

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	$ 7.25
		10	$ 4.94
		25	$ 4.34
		100	$ 3.67
		250	$ 3.35
		500	$ 3.15
		1000	$ 2.98
		2500	$ 2.82
Texas Instruments	TUBE	1	$ 4.15
		100	$ 3.38
		250	$ 2.66
		1000	$ 2.26

Description

General part information

LM2575-N Series

The LM2575 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1A 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.

The LM2575 series offers a high-efficiency replacement for popular three-terminal 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

LM2575HVT-ADJ/NOPB

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LM2575HVT-ADJ/NOPB

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Technical Specifications

LM2575-N Series

Pricing

Description

LM2575-N Series

Documents

AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)

Cost-Effective Transformerless Offline Supply for Light Load Applications (Rev. A)

AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)

AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C)

AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)

AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)

AN-643 EMI/RFI Board Design (Rev. B)

Semiconductor and IC Package Thermal Metrics (Rev. D)

AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)

AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)

Switching regulator fundamentals (Rev. C)

AN-1197 Selecting Inductors for Buck Converters (Rev. B)

AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)

LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator datasheet (Rev. E)

Cap Drop Offline Supply for E-Meters

Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)

Input and Output Capacitor Selection

LM2575-N Series