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LM2598S-3.3 PDF预览

LM2598S-3.3

更新时间: 2024-11-26 20:19:31
品牌 Logo 应用领域
德州仪器 - TI 开关
页数 文件大小 规格书
46页 2304K
描述
2.6A SWITCHING REGULATOR, 173kHz SWITCHING FREQ-MAX, PSSO7, TO-263, SMT-7

LM2598S-3.3 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:D2PAK
包装说明:TO-263, SMSIP7H,.55,50TB针数:4
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.09
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:40 V
最小输入电压:4.5 VJESD-30 代码:R-PSSO-G7
JESD-609代码:e0长度:10.16 mm
湿度敏感等级:3功能数量:1
端子数量:7最高工作温度:125 °C
最低工作温度:-25 °C最大输出电流:2.6 A
封装主体材料:PLASTIC/EPOXY封装代码:TO-263
封装等效代码:SMSIP7H,.55,50TB封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):235
认证状态:Not Qualified座面最大高度:4.8 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:BUCK最大切换频率:173 kHz
技术:BIPOLAR温度等级:OTHER
端子面层:Tin/Lead (Sn/Pb)端子形式:GULL WING
端子节距:1.27 mm端子位置:SINGLE
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:8.635 mm
Base Number Matches:1

LM2598S-3.3 数据手册

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LM2598  
www.ti.com  
SNVS125C MARCH 1998REVISED APRIL 2013  
®
LM2598 SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator,  
with Features  
Check for Samples: LM2598  
1
FEATURES  
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 1A 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.  
23  
3.3V, 5V, 12V, and Adjustable Output Versions  
Adjustable Version Output Voltage Range,  
1.2V to 37V ±4% Max Over Line and Load  
Conditions  
Ensured 1A Output Current  
Available in 7-Pin TO-220 and DDPAK (Surface  
Mount) Package  
This series of switching regulators is similar to the  
LM2595 series, with additional supervisory and  
performance features added.  
Input Voltage Range Up to 40V  
Excellent Line and Load Regulation  
Specifications  
Requiring  
a
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.  
150 kHz Fixed Frequency Internal Oscillator  
Shutdown /Soft-start  
Out of Regulation Error Flag  
Error Output Delay  
The LM2598 series operates at a switching frequency  
of 150 kHz thus allowing smaller sized filter  
components than what would be needed with lower  
Low Power Standby Mode, IQ Typically 85 μA  
High Efficiency  
Uses Readily Available Standard Inductors  
frequency switching regulators. Available in  
a
Thermal Shutdown and Current Limit  
Protection  
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 12V, and ambient temperatures less than  
50°C, no heat sink is required.  
APPLICATIONS  
Simple High-Efficiency Step-down (Buck)  
Regulator  
A standard series of inductors (both through hole and  
surface mount types) are available from several  
different manufacturers optimized for use with the  
LM2598 series. This feature greatly simplifies the  
design of switch-mode power supplies.  
Efficient Pre-Regulator for Linear Regulators  
On-Card Switching Regulators  
Positive to Negative Converter  
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 85 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  
(1)  
conditions.  
(1) † Patent Number 5,382,918  
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.  
2
3
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.  
Copyright © 1998–2013, Texas Instruments Incorporated  

LM2598S-3.3 替代型号

型号 品牌 替代类型 描述 数据表
LM2598S-3.3/NOPB TI

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