Specification	LM2591HVT-5.0/NOPB

Current - Output	1 A
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	TO-220-5 Formed Leads
Supplier Device Package	TO-220-5
Synchronous Rectifier	False
Topology	Buck
Voltage - Input (Max) [Max]	60 V
Voltage - Input (Min) [Min]	4.5 V
Voltage - Output (Min/Fixed)	5 V

LM2591HV Series

SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator

Part	Function	Voltage - Input (Max) [Max]	Output Type	Topology	Voltage - Output (Min/Fixed)	Mounting Type	Output Configuration	Number of Outputs	Current - Output	Voltage - Input (Min) [Min]	Supplier Device Package	Package / Case	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Output (Max)	Output Type
Texas Instruments LM2591HVT-5.0/NOPB	Step-Down	60 V	1.81 mOhm	Buck	5 V	Through Hole	Positive	1	1 A	4.5 V	TO-220-5	TO-220-5 Formed Leads	-40 °C	125 ¯C
Texas Instruments LM2591HVSX-5.0	Step-Down	60 V	1.81 mOhm	Buck	5 V	Surface Mount	Positive	1	1 A	4.5 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	-40 °C	125 ¯C
Texas Instruments LM2591HVSX-3.3/NOPB	Step-Down	60 V	1.81 mOhm	Buck	3.3 V	Surface Mount	Positive	1	1 A	4.5 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	-40 °C	125 ¯C
Texas Instruments LM2591HVT-ADJ/LF16	Step-Down	60 V		Buck	1.2 V	Through Hole	Positive	1	1 A	4.5 V	TO-220-5	TO-220-5 Formed Leads	-40 °C	125 ¯C	57 V	Adjustable
Texas Instruments LM2591HVS-ADJ/NOPB	Step-Down	60 V		Buck	1.2 V	Surface Mount	Positive	1	1 A	4.5 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	-40 °C	125 ¯C	57 V	Adjustable
Texas Instruments LM2591HVSX-ADJ	Step-Down	60 V		Buck	1.2 V	Surface Mount	Positive	1	1 A	4.5 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	-40 °C	125 ¯C	57 V	Adjustable
Texas Instruments LM2591HVS-3.3	Step-Down	60 V	1.81 mOhm	Buck	3.3 V	Surface Mount	Positive	1	1 A	4.5 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	-40 °C	125 ¯C
Texas Instruments LM2591HVT-3.3	Step-Down	60 V	1.81 mOhm	Buck	3.3 V	Through Hole	Positive	1	1 A	4.5 V	TO-220-5	TO-220-5 Formed Leads	-40 °C	125 ¯C
Texas Instruments LM2591HVS-ADJ	Step-Down	60 V		Buck	1.2 V	Surface Mount	Positive	1	1 A	4.5 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	-40 °C	125 ¯C	57 V	Adjustable
Texas Instruments LM2591HVSX-5.0/NOPB	Step-Down	60 V	1.81 mOhm	Buck	5 V	Surface Mount	Positive	1	1 A	4.5 V	TO-263 (DDPAK-5)	D2PAK (5 Leads + Tab) TO-263-6 TO-263BA	-40 °C	125 ¯C

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	$ 5.89
		10	$ 5.29
		45	$ 5.00
		135	$ 4.33
		270	$ 4.11
		540	$ 3.69
		1035	$ 3.11
		2520	$ 2.96
Texas Instruments	TUBE	1	$ 4.05
		100	$ 3.30
		250	$ 2.59
		1000	$ 2.20

Description

General part information

LM2591HV Series

The LM2591HV series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, and an adjustable output version.

This series of switching regulators is similar to the LM2590HV, but without some of the supervisory and control features of the latter.

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, improved line and load specifications, and a fixed-frequency oscillator.

Documents

Technical documentation and resources

LM2591HVT-5.0/NOPB

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LM2591HVT-5.0/NOPB

Deep-Dive with AI

Technical Specifications

LM2591HV Series

Pricing

Description

LM2591HV Series

Documents

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

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

Input and Output Capacitor Selection

Advantages of leaded packages in robust industrial designs

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

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

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

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

Semiconductor and IC Package Thermal Metrics (Rev. D)

Simple Techniques Minimize Cross-Coupling in Distributed Power Systems

The importance of accurate switching frequency and current limit when selecting bu

LM2591HV SIMPLE SWITCHER Power Converter 150-kHz, 1-A Step-Down Voltage Regulator datasheet (Rev. E)

Cap Drop Offline Supply for E-Meters

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

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

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

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

AN-1081 Low-Cost Low-Parts-Count DC/DC Converter With Multiple Outputs (Rev. B)

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

How to increase system reliability and simplify design using DC/DC converters

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

LM2591HV Series