主页 电源管理 直流/直流开关稳压器 DC/DC converters
主页
电源管理
直流/直流开关稳压器
DC/DC converters

LM2591HV

正在供货

SIMPLE SWITCHER 电源转换器 150 kHz 1A 降压电压稳压器

立即订购
数据表

可提供此产品的更新版本

open-in-new 比较替代产品
功能与比较器件相同但引脚有所不同。
LMR36510 正在供货 具有 26uA IQ 的 SIMPLE SWITCHER® 4.2V 至 65V、1A 同步降压转换器 Newer device with higher Fsw, better efficiency, lower EMI and lower IQ.
TPSM5601R5H 正在供货 采用增强型 Hotrod™ QFN 封装的 60V 输入、1V 至 16V 输出、1.5A 电源模块 Save board space, simplify design and speed time to market with an integrated-inductor power module.

LM2591HV

正在供货
数据表 立即订购

产品详情

Rating Catalog Topology Buck Iout (max) (A) 1 Vin (max) (V) 60 Vin (min) (V) 4.5 Vout (max) (V) 57 Vout (min) (V) 3.3 Features Enable, Over Current Protection Control mode Voltage mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.001 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 1 Vin (max) (V) 60 Vin (min) (V) 4.5 Vout (max) (V) 57 Vout (min) (V) 3.3 Features Enable, Over Current Protection Control mode Voltage mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.001 Duty cycle (max) (%) 100
TO-263 (KTT) 5 154.8384 mm² (10.16 mm × 15.24 mm) TO-220 (NDH) 5 86.0552 mm² (10.16 mm × 8.47 mm)
  • 3.3-V, 5-V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range: 1.2 V
    to 57 V ±4% Maximum Over Line and Load
    Conditions
  • Specified 1-A Output Load Current
  • Available in 5-Pin Package
  • Input Voltage Range Up to 60 V
  • 150-kHz Fixed Frequency Internal Oscillator
  • ON and OFF Control
  • Low Power Standby Mode, IQ Typically 90 µA
  • High Efficiency
  • Thermal Shutdown and Current-Limit Protection
  • 3.3-V, 5-V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range: 1.2 V
    to 57 V ±4% Maximum Over Line and Load
    Conditions
  • Specified 1-A Output Load Current
  • Available in 5-Pin Package
  • Input Voltage Range Up to 60 V
  • 150-kHz Fixed Frequency Internal Oscillator
  • ON and OFF Control
  • Low Power Standby Mode, IQ Typically 90 µA
  • High Efficiency
  • Thermal Shutdown and Current-Limit Protection

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 1-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, and an adjustable output version.

This series of switching regulators is similar to the LM2590HV, but without some of the supervisory and control features of the latter.

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, improved line and load specifications, and a fixed-frequency oscillator.

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-pin package with several different lead bend options, and a 5-pin surface mount package.

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.

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 1-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, and an adjustable output version.

This series of switching regulators is similar to the LM2590HV, but without some of the supervisory and control features of the latter.

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, improved line and load specifications, and a fixed-frequency oscillator.

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-pin package with several different lead bend options, and a 5-pin surface mount package.

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.
filter 查找其他 DC/DC converters
下载 观看带字幕的视频 视频

技术文档

未找到结果。请清除搜索并重试。
查看全部 22
顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 LM2591HV SIMPLE SWITCHER Power Converter 150-kHz, 1-A Step-Down Voltage Regulator 数据表 (Rev. E) PDF | HTML 2016-5-27
应用手册 半导体和 IC 封装热指标 (Rev. D) PDF | HTML 英语版 (Rev.D) PDF | HTML 2024-4-24
技术文章 How to increase system reliability and simplify design using DC/DC converters PDF | HTML 2016-6-13
技术文章 The importance of accurate switching frequency and current limit when selecting bu PDF | HTML 2016-4-19
技术文章 Advantages of leaded packages in robust industrial designs PDF | HTML 2016-3-8
应用手册 Cost-Effective Transformerless Offline Supply for Light Load Applications (Rev. A) 2015-6-16
应用手册 Cap Drop Offline Supply for E-Meters 2015-6-16
应用手册 Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 2014-9-12
应用手册 AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 2013-4-24
应用手册 AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 2013-4-23
应用手册 AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 2013-4-23
应用手册 AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 2013-4-23
应用手册 AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 2013-4-23
应用手册 AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 2013-4-23
应用手册 AN-1081 Low-Cost Low-Parts-Count DC/DC Converter With Multiple Outputs (Rev. B) 2013-4-23
应用手册 AN-1197 Selecting Inductors for Buck Converters (Rev. B) 2013-4-23
应用手册 AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C) 2013-4-23
应用手册 AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 2013-4-23
应用手册 Simple Techniques Minimize Cross-Coupling in Distributed Power Systems 2007-3-21
应用手册 Input and Output Capacitor Selection 2005-9-19
更多文献资料 SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 2005-7-12
应用手册 AN-643 EMI/RFI Board Design (Rev. B) 2004-5-3

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

仿真模型

LM2591HV-ADJ Unencrypted PSpice Transient Model

SNVMAK6.ZIP (2 KB) - PSpice 模型
支持的产品和硬件
仿真模型

LM2591HV-ADJ Unencrypted PSpice Transient Model Package (Rev. A)

SNVMAK7A.ZIP (56 KB) - PSpice 模型
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
TO-263 (KTT) 5 Ultra Librarian
TO-220 (NDH) 5 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

订购和质量

推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。

支持和培训

可获得 TI 工程师技术支持的 TI E2E™ 论坛

查看全部论坛主题 查看英文版全部论坛主题

所有内容均由 TI 和社区贡献者按“原样”提供，并不构成 TI 规范。请参阅使用条款。

如果您对质量、包装或订购 TI 产品有疑问，请参阅 TI 支持。​​​​​​​​​​​​​​

视频