Datasheet > LM2594MX-5

LM2594MX-5

更新时间： 2024-11-26 12:18:43

品牌	Logo	应用领域
德州仪器 - TI		转换器稳压器
页数	文件大小	规格书
40页	1975K
描述
LM2594/LM2594HV SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator

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LM2594MX-5 数据手册

LM2594, LM2594HV

www.ti.com

SNVS118C –DECEMBER 1999–REVISED APRIL 2013

LM2594/LM2594HV SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down

Voltage Regulator

Check for Samples: LM2594, LM2594HV

FEATURES

DESCRIPTION

The LM2594/LM2594HV series of regulators are

monolithic integrated circuits that provide all the

active functions for a step-down (buck) switching

2345

•

3.3V, 5V, 12V, and Adjustable Output Versions

•

Adjustable Version Output Voltage Range,

1.2V to 37V (57V for the HV Version)±4% Max

Over Line and Load Conditions

regulator, capable of driving

a 0.5A load with

excellent line and load regulation. These devices are

available in fixed output voltages of 3.3V, 5V, 12V,

and an adjustable output version, and are packaged

in a 8-lead PDIP and a 8-lead surface mount SOIC

package.

Available in 8-pin Surface Mount SOIC and

PDIP-8 Package

•

Ensured 0.5A Output Current

Input Voltage Range up to 60V

Requiring

minimum number of external

Requires only 4 External Components

150 kHz Fixed Frequency Internal Oscillator

TTL Shutdown Capability

components, these regulators are simple to use and

feature internal frequency compensation†, a fixed-

frequency oscillator, and improved line and load

regulation specifications.

Low Power Standby Mode, I_Qtypically 85 μA

High Efficiency

The LM2594/LM2594HV series operates at

switching frequency of 150 kHz thus allowing smaller

sized filter components than what would be needed

with lower frequency switching regulators. Because of

its high efficiency, the copper traces on the printed

circuit board are normally the only heat sinking

needed.

Uses Readily Available Standard Inductors

Thermal Shutdown and Current Limit

Protection

APPLICATIONS

A standard series of inductors (both through hole and

surface mount types) are available from several

different manufacturers optimized for use with the

LM2594/LM2594HV series. This feature greatly

simplifies the design of switch-mode power supplies.

•

Simple High-efficiency Step-down (Buck)

Regulator

•

Efficient Pre-regulator for Linear Regulators

On-card Switching Regulators

Positive to Negative Convertor

Other features include an ensured ±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 85 μA standby current. Self

protection features include a two stage frequency

reducing current limit for the output switch and an

over temperature shutdown for complete protection

under fault conditions.

The LM2594HV is for applications requiring an input

voltage up to 60V.

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.

Switchers Made Simple is a trademark of Texas Instruments.

SIMPLE SWITCHER is a registered trademark of Texas Instruments.

Switchers Made Simple is a registered trademark of dcl_owner.

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...40

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与LM2594MX-5相关器件

型号	品牌	获取价格	描述	数据表
LM2594MX-5.0	ETC	获取价格	Voltage-Mode SMPS Controller
LM2594MX-5.0/NOPB	TI	获取价格	LM2594/LM2594HV SIMPLE SWITCHERÂ® Power Conve
LM2594MX-ADJ	TI	获取价格	LM2594/LM2594HV SIMPLE SWITCHERÂ® Power Conve
LM2594MX-ADJ/NOPB	TI	获取价格	LM2594/LM2594HV SIMPLE SWITCHERÂ® Power Conve
LM2594N-12	TI	获取价格	LM2594/LM2594HV SIMPLE SWITCHERÂ® Power Conve
LM2594N-12	NSC	获取价格	SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator
LM2594N-12/NOPB	TI	获取价格	LM2594/LM2594HV SIMPLE SWITCHERÂ® Power Conve
LM2594N-3.3	TI	获取价格	LM2594/LM2594HV SIMPLE SWITCHERÂ® Power Conve
LM2594N-3.3	NSC	获取价格	SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator
LM2594N-3.3/NOPB	TI	获取价格	LM2594/LM2594HV SIMPLE SWITCHERÂ® Power Conve

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