LM2575HV

Name: LM2575HV
Brand: TI
SKU: LM2575HV
Price: 1.967 USD

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Regulador de tensión reductor de 1 A SIMPLE SWITCHER

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Hoja de datos

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

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LM2575HV

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Detalles del producto

Rating

Catalog

Topology

Buck

Iout (max) (A)

1

Vin (max) (V)

60

Vin (min) (V)

4

Vout (max) (V)

57

Vout (min) (V)

3.3

Features

Enable, Over Current Protection

Control mode

Voltage mode

Switching frequency (min) (kHz)

42

Switching frequency (max) (kHz)

63

Operating temperature range (°C)

-40 to 125

Iq (typ) (µA)

10000

Duty cycle (max) (%)

98

Type

Converter

Rating

Catalog

Topology

Buck

Iout (max) (A)

1

Vin (max) (V)

60

Vin (min) (V)

4

Vout (max) (V)

57

Vout (min) (V)

3.3

Features

Enable, Over Current Protection

Control mode

Voltage mode

Switching frequency (min) (kHz)

42

Switching frequency (max) (kHz)

63

Operating temperature range (°C)

-40 to 125

Iq (typ) (µA)

10000

Duty cycle (max) (%)

98

Type

Converter

PDIP (NBG)

16

189.051819 mm² 21.7551 x 8.69

SOIC (DW)

24

159.65 mm² 15.5 x 10.3

TO-220 (KC)

5

45.212 mm² 10.16 x 4.45

TO-220 (NDH)

5

86.0552 mm² 10.16 x 8.47

TO-263 (KTT)

5

154.8384 mm² 10.16 x 15.24

3.3V, 5V, 12V, 15V, and Adjustable Output Versions
Adjustable Version Output Voltage Range,
- 1.23V to 37V (57V for HV Version) ±4% Max Over
- Line and Load Conditions
Specified 1A Output Current
Wide Input Voltage Range, 40V up to 60V for HV Version
Requires Only 4 External Components
52 kHz Fixed Frequency Internal Oscillator
TTL Shutdown Capability, Low Power Standby Mode
High Efficiency
Uses Readily Available Standard Inductors
Thermal Shutdown and Current Limit Protection
P⁺ Product Enhancement Tested

All trademarks are the property of their respective owners.

3.3V, 5V, 12V, 15V, and Adjustable Output Versions
Adjustable Version Output Voltage Range,
- 1.23V to 37V (57V for HV Version) ±4% Max Over
- Line and Load Conditions
Specified 1A Output Current
Wide Input Voltage Range, 40V up to 60V for HV Version
Requires Only 4 External Components
52 kHz Fixed Frequency Internal Oscillator
TTL Shutdown Capability, Low Power Standby Mode
High Efficiency
Uses Readily Available Standard Inductors
Thermal Shutdown and Current Limit Protection
P⁺ Product Enhancement Tested

All trademarks are the property of their respective owners.

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.

A standard series of inductors optimized for use with the LM2575 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

Other features include a specified ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External shutdown is included, featuring 50 μA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.

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.

A standard series of inductors optimized for use with the LM2575 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

Other features include a specified ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External shutdown is included, featuring 50 μA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.

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Documentación técnica

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	Tipo	Título		Fecha
*	Data sheet	LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator datasheet (Rev. E)		03 abr 2013
	Application note	Semiconductor and IC Package Thermal Metrics (Rev. D)	PDF \| HTML	25 mar 2024
	Application note	Switching regulator fundamentals (Rev. C)	PDF \| HTML	05 feb 2019
	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-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	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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