LM2591HV

Name: LM2591HV
Brand: TI
SKU: LM2591HV
Price: 2.64 USD

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Convertidor de potencia SIMPLE SWITCHER y regulador de tensión reductor de 150 kHz y 1 A

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document-pdfAcrobat LM2591HV SIMPLE SWITCHER Power Converter 150-kHz, 1-A Step-Down Voltage Regulator datasheet (Rev. E) (Inglés) PDF | HTML

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LM2591HV

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Detalles del producto

Iout (max) (A)

1

Vin (min) (V)

4.5

Vin (max) (V)

60

Topology

Buck

Type

Converter

Switching frequency (min) (kHz)

110

Switching frequency (max) (kHz)

173

Features

Enable, Over Current Protection

Control mode

Voltage mode

Vout (min) (V)

3.3

Vout (max) (V)

57

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.001

Iout (max) (A)

1

Vin (min) (V)

4.5

Vin (max) (V)

60

Topology

Buck

Type

Converter

Switching frequency (min) (kHz)

110

Switching frequency (max) (kHz)

173

Features

Enable, Over Current Protection

Control mode

Voltage mode

Vout (min) (V)

3.3

Vout (max) (V)

57

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.001

TO-220 (NDH)

5

86.0552 mm² 10.16 x 8.47

TO-263 (KTT)

5

154.8384 mm² 10.16 x 15.24

3.3-V, 5-V, and Adjustable Output Versions
Adjustable Version Output Voltage Range: 1.2 V
to 57 V ±4% Maximum Over Line and Load
Conditions
Specified 1-A Output Load Current
Available in 5-Pin Package
Input Voltage Range Up to 60 V
150-kHz Fixed Frequency Internal Oscillator
ON and OFF Control
Low Power Standby Mode, I_Q Typically 90 µA
High Efficiency
Thermal Shutdown and Current-Limit Protection

3.3-V, 5-V, and Adjustable Output Versions
Adjustable Version Output Voltage Range: 1.2 V
to 57 V ±4% Maximum Over Line and Load
Conditions
Specified 1-A Output Load Current
Available in 5-Pin Package
Input Voltage Range Up to 60 V
150-kHz Fixed Frequency Internal Oscillator
ON and OFF Control
Low Power Standby Mode, I_Q Typically 90 µA
High Efficiency
Thermal Shutdown and Current-Limit Protection

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.

The LM2591HV operates at a switching frequency of 150 kHz, thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 5-pin package with several different lead bend options, and a 5-pin surface mount package.

Other features include a specified ±4% tolerance on output voltage under all conditions of input voltage and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring typically 90-µA standby current. Self-protection features include a two stage current limit for the output switch and an over temperature shutdown for complete protection under fault conditions.

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.

The LM2591HV operates at a switching frequency of 150 kHz, thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 5-pin package with several different lead bend options, and a 5-pin surface mount package.

Other features include a specified ±4% tolerance on output voltage under all conditions of input voltage and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring typically 90-µA standby current. Self-protection features include a two stage current limit for the output switch and an over temperature shutdown for complete protection under fault conditions.

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Documentación técnica

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	Tipo	Título		Fecha
*	Data sheet	LM2591HV SIMPLE SWITCHER Power Converter 150-kHz, 1-A Step-Down Voltage Regulator datasheet (Rev. E)	PDF \| HTML	27 may 2016
	Application note	Semiconductor and IC Package Thermal Metrics (Rev. D)	PDF \| HTML	25 mar 2024
	Technical article	How to increase system reliability and simplify design using DC/DC converters	PDF \| HTML	13 jun 2016
	Technical article	The importance of accurate switching frequency and current limit when selecting bu	PDF \| HTML	19 abr 2016
	Technical article	Advantages of leaded packages in robust industrial designs	PDF \| HTML	08 mar 2016
	Application note	Cap Drop Offline Supply for E-Meters		16 jun 2015
	Application note	Cost-Effective Transformerless Offline Supply for Light Load Applications (Rev. A)		16 jun 2015
	Application note	Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)		12 sep 2014
	Application note	AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)		24 abr 2013
	Application note	AN-1081 Low-Cost Low-Parts-Count DC/DC Converter With Multiple Outputs (Rev. B)		23 abr 2013
	Application note	AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)		23 abr 2013
	Application note	AN-1197 Selecting Inductors for Buck Converters (Rev. B)		23 abr 2013
	Application note	AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)		23 abr 2013
	Application note	AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C)		23 abr 2013
	Application note	AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)		23 abr 2013
	Application note	AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)		23 abr 2013
	Application note	AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)		23 abr 2013
	Application note	AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)		23 abr 2013
	Application note	Simple Techniques Minimize Cross-Coupling in Distributed Power Systems		21 mar 2007
	Application note	Input and Output Capacitor Selection		19 sep 2005
	More literature	SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations		12 jul 2005
	Application note	AN-643 EMI/RFI Board Design (Rev. B)		03 may 2004

Diseño y desarrollo

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