Datasheet > LM2598SX-3.3/NOPB

LM2598SX-3.3/NOPB

更新时间： 2024-11-27 11:12:15

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
48页	2333K
描述
4.5V 至 40V、1A SIMPLE SWITCHER® 降压转换器 \| KTW \| 7 \| -40 to 125

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LM2598

SNVS125D –MARCH 1998–REVISED MAY 2016

LM2598 SIMPLE SWITCHER Power Converter 150-kHz 1-A Step-Down Voltage Regulator,

With Features

1 Features

3 Description

The LM2598 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, 12 V, and an adjustable output

version.

•

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

Adjustable Version Output Voltage Range, 1.2-V

to 37-V ±4% Max Over Line and Load Conditions

•

1-A Output Current

Available in 7-Pin TO-220 and DDPAK (Surface

Mount) Package

The LM2598 is a member of the LM259x family.

•

Input Voltage Range Up to 40 V

Excellent Line and Load Regulation Specifications

150 kHz Fixed Frequency Internal Oscillator

Shutdown/Soft-start

Requiring

minimum number of external

components, these regulators are simple to use and

include internal frequency compensation, improved

line and load specifications, fixed-frequency oscillator,

Shutdown/Soft-start, error flag delay and error flag

output.

Out of Regulation Error Flag

Error Output Delay

Low Power Standby Mode, I_Q, Typically 85 μA

High Efficiency

The LM2598 series operates at a switching frequency

of 150 kHz, thus allowing smaller sized filter

components than what would be required with lower-

Uses Readily Available Standard Inductors

Thermal Shutdown and Current Limit Protection

frequency switching regulators. Available in

standard 7-lead TO-220 package with several

different lead bend options, and a 7-lead DDPAK

surface mount package. Typically, for output voltages

less than 12 V, and ambient temperatures less than

50°C, no heat sink is required.

2 Applications

•

Simple High-Efficiency Step-down (Buck)

Regulator

Device Information⁽¹⁾

•

Efficient Preregulator for Linear Regulators

On-Card Switching Regulators

PART NUMBER

PACKAGE

TO-220 (7)

TO-263 (7)

BODY SIZE (NOM)

14.986 mm × 10.16 mm

10.10 mm × 8.89 mm

Positive to Negative Converter

LM2598

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Typical Application

Fixed output voltage versions

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...48

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LM2598SX-3.3/NOPB 替代型号

型号	品牌	替代类型	描述	数据表
LM2598S-3.3/NOPB	TI	完全替代	4.5V 至 40V、1A SIMPLE SWITCHER® 降压转换器 \| KTW \|
LM2598S-3.3	TI	功能相似	2.6A SWITCHING REGULATOR, 173kHz SWITCHING FREQ-MAX, PSSO7, TO-263, SMT-7

与LM2598SX-3.3/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LM2598SX-5.0	ETC	获取价格	Voltage-Mode SMPS Controller
LM2598SX-5.0/NOPB	NSC	获取价格	IC 2.6 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, PSSO7, TO-263, SMT-7, Switching
LM2598SX-5.0/NOPB	TI	获取价格	4.5V 至 40V、1A SIMPLE SWITCHER® 降压转换器 \| KTW \|
LM2598SX-ADJ/NOPB	TI	获取价格	4.5V 至 40V、1A SIMPLE SWITCHER® 降压转换器 \| KTW \|
LM2598T-12	NSC	获取价格	SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
LM2598T-12	TI	获取价格	2.6A SWITCHING REGULATOR, 173kHz SWITCHING FREQ-MAX, PSFM7, BENT STAGGERED, TO-220, 7 PIN
LM2598T-12/NOPB	TI	获取价格	4.5V 至 40V、1A SIMPLE SWITCHER® 降压转换器 \| NDZ \|
LM2598T-3.3	NSC	获取价格	SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
LM2598T-3.3/NOPB	TI	获取价格	4.5V 至 40V、1A SIMPLE SWITCHER® 降压转换器 \| NDZ \|
LM2598T-5.0	NSC	获取价格	SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features

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