LM2594

更新时间： 2024-09-15 05:42:03

品牌	Logo	应用领域
安森美 - ONSEMI		稳压器开关
页数	文件大小	规格书
25页	555K
描述
0.5 A, Step-Down Switching Regulator

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中文翻译

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数据手册

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LM2594 数据手册

LM2594

0.5 A, Step-Down Switching

Regulator

The LM2594 regulator is monolithic integrated circuit ideally suited

for easy and convenient design of a step−down switching regulator

(buck converter). It is capable of driving a 0.5 A load with excellent

line and load regulation. This device is available in adjustable output

version. It is internally compensated to minimize the number of

external components to simplify the power supply design.

Since LM2594 converter is a switch−mode power supply, its

efficiency is significantly higher in comparison with popular

three−terminal linear regulators, especially with higher input voltages.

The LM2594 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

8−Lead PDIP and 8−Lead Surface Mount packages.

http://onsemi.com

MARKING

DIAGRAMS

LM2594

AYWW

SOIC−8

D SUFFIX

CASE 751

The other features include a guaranteed $4% tolerance on output

voltage within specified input voltages and output load conditions, and

$15% on the oscillator frequency. External shutdown is included,

featuring 50 mA (typical) standby current. Self protection features

include switch cycle−by−cycle current limit for the output switch, as

well as thermal shutdown for complete protection under fault

conditions.

2594−ADJ

AWL

YYWW

PDIP−8

N SUFFIX

CASE 626

= Assembly Location

= Wafer Lot

= Year

Features

• Adjustable Output Voltage Range 1.23 V − 37 V

• Guaranteed 0.5 A Output Load Current

• Wide Input Voltage Range up to 40 V

• 150 kHz Fixed Frequency Internal Oscillator

• TTL Shutdown Capability

• Low Power Standby Mode, typ 50 mA

• Thermal Shutdown and Current Limit Protection

• Internal Loop Compensation

= Work Week

G or G = Pb−Free Package

PIN CONNECTIONS

SOIC−8

OUTPUT

• Moisture Sensitivity Level (MSL) Equals 1

• These are Pb−Free Devices

GND

ON/OFF

(Top View)

Applications

PDIP−8

• Simple High−Efficiency Step−Down (Buck) Regulator

• Efficient Pre−Regulator for Linear Regulators

• On−Card Switching Regulators

• Positive to Negative Converter (Buck−Boost)

• Negative Step−Up Converters

• Power Supply for Battery Chargers

OUTPUT

GND

ON/OFF

(Top View)

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 23 of this data sheet.

Semiconductor Components Industries, LLC, 2009

Publication Order Number:

January, 2009 − Rev. 0

LM2594/D

12 3 4 5 6 7...25

中文翻译

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与LM2594相关器件

型号	品牌	获取价格	描述	数据表
LM2594_16	TI	获取价格	SIMPLE SWITCHER Power Converter 150-kHz 0.5-A Step-Down Voltage Regulator
LM2594-12MDC	NSC	获取价格	1.4A SWITCHING REGULATOR, 173kHz SWITCHING FREQ-MAX, UUC, DIE
LM2594-12MWC	NSC	获取价格	IC 1.4 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC, WAFER, Switching Regulator
LM2594-3.3MWC	NSC	获取价格	IC 1.4 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC, WAFER, Switching Regulator
LM2594-5.0MDA	TI	获取价格	IC,SMPS CONTROLLER,VOLTAGE-MODE,BIPOLAR,DIE
LM2594-5.0MDA	NSC	获取价格	IC,SMPS CONTROLLER,VOLTAGE-MODE,BIPOLAR,DIE
LM2594-5.0MDC	NSC	获取价格	IC 1.4 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC, DIE, Switching Regulator or
LM2594-5.0MWA	TI	获取价格	IC,SMPS CONTROLLER,VOLTAGE-MODE,BIPOLAR,WAFER
LM2594-5.0MWC	NSC	获取价格	IC 1.4 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC, WAFER, Switching Regulator
LM2594-ADJMDC	NSC	获取价格	IC 1.4 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, UUC, DIE, Switching Regulator or

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