WMSIC Electronic Components

HGSEMI LM2575HVS-12/TR LM2575HVS

ModelLM2575HVS-12/TR
PackageTO-263-5
BrandHGSEMI
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

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Technical data

Product details

19 specifications

Core information

Product name
HGSEMI LM2575HVS-12 / TR
Type
HGSEMI
Minimum package
500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
LM2575HVS-12/TR
Electronic Component
1
Package
TO-263-5
Electronic Component
DC-DC Power Supply IC
Electronic Component
2.258g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0264601536
Operating Temperature
40℃~+125℃
Operating Voltage
40V~60V
Switching Frequency
52kHz
Electronic Component
Electronic Component
Output Voltage
12V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

LM2575HVS-12/TR 降压型开关稳压器产品概述

LM2575HVS-12/TR是华冠半导体(HGSEMI)推出的高压非同步降压开关稳压器,针对40V~60V宽输入电压场景设计,固定输出12V/1A,兼顾工业级宽温可靠性与低静态功耗,适合对高压输入、宽温适应及待机功耗敏感的应用场景。

一、产品核心功能与定位

该器件属于降压(Buck)拓扑结构,内置N沟道功率开关管,无需外部功率管即可实现1A输出能力;采用非同步整流设计,电路结构简洁,可靠性高;静态电流低至50μA,在轻载或待机状态下功耗极低,适合长期通电设备;输出电压固定为12V,无需外部电阻调整,简化设计流程。

二、关键电气参数详解

1. 输入输出特性

  • 输入电压范围:40V~60V,覆盖工业48V总线、高压电池组等常见高压输入场景,抗输入电压波动能力强;
  • 输出电压:固定12V,精度满足常规负载需求(典型±2%);
  • 输出电流:最大1A,可驱动传感器、小功率电机、通信模块等中等功率负载;
  • 静态电流:50μA(典型值),待机时几乎不消耗系统能量,适合远程监测、备用电源等低功耗场景。

2. 开关特性

  • 开关频率:52kHz,处于工业开关电源常用频段,兼顾效率与EMI控制——既避免高频(>100kHz)带来的开关损耗增加,又减少低频(<30kHz)的电感体积需求;
  • 非同步整流:内置开关管导通时储能,外接续流二极管(需用户匹配)释放能量,相比同步整流,虽轻载效率略低,但电路更简单、成本更低,可靠性更强。

三、拓扑结构与工作原理

采用经典降压(Buck)拓扑,核心工作流程如下:

  1. 开关管导通:内置N沟道开关管闭合,输入电压通过电感向输出电容充电,同时电感储能;
  2. 开关管关断:开关管断开,电感通过外接续流二极管向输出电容放电,维持输出电压稳定;
  3. PWM控制:通过内部PWM电路调整开关管通断占空比,实现输出电压与输入电压的降压稳压(占空比≈输出电压/输入电压)。

四、工作环境与可靠性

  • 宽温范围:-40℃~+125℃,符合工业级标准,可适应户外低温、工业现场高温等极端环境;
  • 内置开关管:减少外部元件连接点,降低故障风险,提升抗干扰能力;
  • 过流保护:内置过流限制功能(典型1.2A),输出短路时自动保护,避免器件损坏。

五、典型应用场景

  1. 工业控制:48V工业总线供电的传感器模块、PLC扩展卡、小型执行器驱动;
  2. 车载电子:高压辅助电源(如12V车载系统扩展、高压传感器供电);
  3. 通信设备:基站远程监控单元、光模块辅助电源;
  4. 户外设备:太阳能供电系统的高压电池组降压转换、远程监测终端。

六、使用注意事项

  1. 外围元件匹配:需外接快恢复/肖特基续流二极管(反向耐压≥60V)、电感(电感值建议100μH左右,匹配52kHz频率)、输入/输出电容(输入建议10μF陶瓷电容,输出建议22μF电解+1μF陶瓷电容);
  2. 布局优化:功率路径(输入电容→开关管→电感→续流二极管→输出电容)需短而粗,减少压降与EMI;
  3. 参数限制:输入电压不超过60V,输出电流不超过1A,避免过压过流损坏。

LM2575HVS-12/TR凭借高压输入、宽温适应、低静态功耗等优势,成为工业、车载、通信等领域高压降压应用的高性价比选择。

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