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LM2575HV

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SIMPLE SWITCHER 1A 降压电压稳压器

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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 Higher Fsw, better efficiency, lower EMI and lower IQ.
TPSM5601R5 正在供货 采用 5mm x 5.5mm x 4mm QFN 封装的 4.2V 至 60V 输入、1V 至 6V 输出、1.5A 降压模块 Simplified design, smaller and speed time to market with an integrated-inductor power module.
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.

产品详情

Vin (min) (V) 4 Vin (max) (V) 60 Vout (min) (V) 3.3 Vout (max) (V) 57 Iout (max) (A) 1 Iq (typ) (mA) 10 Switching frequency (min) (kHz) 42 Switching frequency (max) (kHz) 63 Features Enable, Over Current Protection Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode Voltage mode Duty cycle (max) (%) 98 Type Converter
Vin (min) (V) 4 Vin (max) (V) 60 Vout (min) (V) 3.3 Vout (max) (V) 57 Iout (max) (A) 1 Iq (typ) (mA) 10 Switching frequency (min) (kHz) 42 Switching frequency (max) (kHz) 63 Features Enable, Over Current Protection Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode Voltage mode Duty cycle (max) (%) 98 Type Converter
PDIP (NBG) 16 189.051819 mm² 21.7551 x 8.69 TO-220 (KC) 5 45.212 mm² 10.16 x 4.45 TO-220 (NDH) 5 86.0552 mm² 10.16 x 8.47 TO-263 (KTT) 5 154.8384 mm² 10.16 x 15.24
  • 3.3V, 5V, 12V, 15V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range,
    •  1.23V to 37V (57V for HV Version) ±4% Max Over
    •  Line and Load Conditions
  • Specified 1A Output Current
  • Wide Input Voltage Range, 40V up to 60V for HV Version
  • Requires Only 4 External Components
  • 52 kHz Fixed Frequency Internal Oscillator
  • TTL Shutdown Capability, Low Power Standby Mode
  • High Efficiency
  • Uses Readily Available Standard Inductors
  • Thermal Shutdown and Current Limit Protection
  • P+ Product Enhancement Tested

All trademarks are the property of their respective owners.

  • 3.3V, 5V, 12V, 15V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range,
    •  1.23V to 37V (57V for HV Version) ±4% Max Over
    •  Line and Load Conditions
  • Specified 1A Output Current
  • Wide Input Voltage Range, 40V up to 60V for HV Version
  • Requires Only 4 External Components
  • 52 kHz Fixed Frequency Internal Oscillator
  • TTL Shutdown Capability, Low Power Standby Mode
  • High Efficiency
  • Uses Readily Available Standard Inductors
  • Thermal Shutdown and Current Limit Protection
  • P+ Product Enhancement Tested

All trademarks are the property of their respective owners.

The LM2575 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, 15V, and an adjustable output version.

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

The LM2575 series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required.

A standard series of inductors optimized for use with the LM2575 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

Other features include a specified ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External shutdown is included, featuring 50 μA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.

The LM2575 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, 15V, and an adjustable output version.

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

The LM2575 series offers a high-efficiency replacement for popular three-terminal linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required.

A standard series of inductors optimized for use with the LM2575 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies.

Other features include a specified ±4% tolerance on output voltage within specified input voltages and output load conditions, and ±10% on the oscillator frequency. External shutdown is included, featuring 50 μA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions.

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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator 数据表 (Rev. E) 2013年 4月 3日
应用手册 Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 2024年 3月 25日
应用手册 Switching regulator fundamentals (Rev. C) PDF | HTML 2019年 2月 5日
应用手册 Cap Drop Offline Supply for E-Meters 2015年 6月 16日
应用手册 Cost-Effective Transformerless Offline Supply for Light Load Applications (Rev. A) 2015年 6月 16日
应用手册 Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 2014年 9月 12日
应用手册 AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 2013年 4月 24日
应用手册 AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 2013年 4月 23日
应用手册 AN-1197 Selecting Inductors for Buck Converters (Rev. B) 2013年 4月 23日
应用手册 AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 2013年 4月 23日
应用手册 AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C) 2013年 4月 23日
应用手册 AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 2013年 4月 23日
应用手册 AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 2013年 4月 23日
应用手册 AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 2013年 4月 23日
应用手册 AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 2013年 4月 23日
应用手册 Input and Output Capacitor Selection 2005年 9月 19日
更多文献资料 SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 2005年 7月 12日
应用手册 AN-643 EMI/RFI Board Design (Rev. B) 2004年 5月 3日

设计和开发

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仿真模型

LM2575HV PSpice Transient Model

SNVMB26.ZIP (45 KB) - PSpice Model
仿真模型

LM2575HV Unencrypted PSpice Transient Model

SNVMB25.ZIP (2 KB) - PSpice Model
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封装 引脚 下载
PDIP (NBG) 16 查看选项
TO-220 (KC) 5 查看选项
TO-220 (NDH) 5 查看选项
TO-263 (KTT) 5 查看选项

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

支持和培训

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