LM2591HV

更新时间： 2024-11-06 12:09:43

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德州仪器 - TI		/
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LM2591HV SIMPLE SWITCHER Power onverter 150 kHz 1A Step-Down Voltage

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LM2591HV 数据手册

LM2591HV

www.ti.com

SNVS074D –MAY 2001–REVISED APRIL 2013

LM2591HV SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage

Regulator

Check for Samples: LM2591HV

FEATURES

DESCRIPTION

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 1A load with excellent line and load

regulation. These devices are available in fixed output

voltages of 3.3V, 5V, and an adjustable output

version.

•

3.3V, 5V, and Adjustable Output Versions

•

Adjustable Version Output Voltage Range,

1.2V to 57V ±4% Max Over Line and Load

Conditions

•

Specified 1A Output Load Current

Available in 5-Pin Package

This series of switching regulators is similar to the

LM2590HV, but without some of the supervisory and

performance features of the latter.

Input Voltage Range Up to 60V

150 kHz Fixed Frequency Internal Oscillator

On/Off Control

Requiring

minimum number of external

Low Power Standby Mode, I_QTypically 90 μA

High Efficiency

components, these regulators are simple to use and

include internal frequency compensation†, improved

line and load specifications and a fixed-frequency

oscillator.

Thermal Shutdown and Current Limit

Protection

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-lead

package with several different lead bend options, and

a 5-lead Surface mount package.

APPLICATIONS

•

Simple High-Efficiency Step-Down (Buck)

Regulator

•

Efficient Pre-Regulator for Linear Regulators

On-Card Switching Regulators

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.

Positive to Negative Converter

† Patent Number 5,382,918.

Typical Application

(Fixed Output Voltage Versions)

Figure 1.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

SIMPLE SWITCHER is a registered trademark of Texas Instruments.

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...29

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LM2591HV 替代型号

型号	品牌	替代类型	描述	数据表
LM46001	TI	功能相似	3.5 至 60V、1A 同步降压转换器
LM2595	TI	功能相似	LM2595 SIMPLE SWITCHERÂ® Power Converter 150

与LM2591HV相关器件

型号	品牌	获取价格	描述	数据表
LM2591HV3.3MWC	NSC	获取价格	IC 3 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC, WAFER, Switching Regulator or
LM2591HV5.0MWC	TI	获取价格	3A SWITCHING REGULATOR, 173kHz SWITCHING FREQ-MAX, UUC, WAFER
LM2591HV5.0MWC	NSC	获取价格	IC 3 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC, WAFER, Switching Regulator or
LM2591HVADJMDC	NSC	获取价格	IC 3 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC, DIE, Switching Regulator or C
LM2591HVS-12	UMW	获取价格	DC-DC芯片
LM2591HVS-3.3	TI	获取价格	LM2591HV SIMPLE SWITCHER Power onverter 150 kHz 1A Step-Down Voltage
LM2591HVS-3.3	NSC	获取价格	SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator
LM2591HVS-3.3	UMW	获取价格	DC-DC芯片
LM2591HVS-3.3/NOPB	TI	获取价格	SIMPLE SWITCHER 电源转换器 150 kHz 1A 降压电压稳压器 \| KT
LM2591HVS-3.3/NOPB	NSC	获取价格	IC 3 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, PSSO5, TO-263, 5 PIN, Switching Re

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