WMSIC Electronic Components

HGSEMI LM2576T-12 LM2576T

ModelLM2576T-12
PackageTO-220-5
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+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI LM2576T-12
Type
HGSEMI
Minimum package
50 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
LM2576T-12
Electronic Component
1
Package
TO-220-5
Electronic Component
DC-DC Power Supply IC
Electronic Component
2.725g
Electronic Component
1
Type
Electronic Component
Electronic Component
BM0265148910
Operating Temperature
40℃~+125℃@(TJ)
Operating Voltage
40V
Switching Frequency
52kHz
Electronic Component
Electronic Component
Output Voltage
12V
Output Current
3A

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

LM2576T-12 DC-DC降压电源芯片产品概述

一、核心定位与拓扑架构

LM2576T-12是一款内置高压开关管的固定输出降压型DC-DC电源芯片,采用经典的Buck(降压)拓扑结构,专为将较高输入电压转换为稳定12V输出设计。作为单通道降压芯片,它无需外部复杂调整电路即可实现固定电压输出,简化系统设计流程,同时覆盖中小功率降压需求场景。

二、关键电气性能参数

该芯片的核心电气参数明确且适配多场景需求,具体如下:

  • 输入电压:最高工作电压40V,兼容12V、24V、36V等常见工业/汽车电源系统;
  • 输出特性:固定12V输出电压,连续输出电流可达3A,满足多数中等功率负载(如小型电机、LED阵列)的供电需求;
  • 开关频率:52kHz(中等开关频率),既避免过高频率带来的EMI干扰问题,又能减小外围电感、电容的体积,平衡性能与成本;
  • 静态电流:10mA(芯片自身工作消耗电流),在待机状态下保持基本功能稳定,不额外增加系统功耗;
  • 集成特性:内置高压功率开关管,无需外接外部开关管,进一步减少元件数量与PCB空间占用。

三、封装形式与集成特性

采用TO-220-5直插式封装,这种封装的优势体现在三个方面:

  1. 散热优异:直插引脚与PCB接触面积大,配合小型散热器可有效散发热量,适应3A输出下的功率损耗;
  2. 安装便捷:直插式设计适合手工焊接(原型开发)与批量生产,降低调试与生产难度;
  3. 集成度高:外围仅需1个电感、2个电解电容(输入/输出)即可组成完整降压电路,BOM成本与设计复杂度显著降低。

四、宽温工作能力

芯片结温(TJ)范围覆盖**-40℃~+125℃**,属于工业级宽温标准,可适应极端环境:

  • 户外场景:如户外监控、太阳能供电系统(昼夜温差可达50℃以上);
  • 工业现场:PLC控制柜、电机驱动辅助电源(环境温度波动大);
  • 汽车电子:车载12V/24V设备(低温-40℃、高温125℃的极端工况)。
    宽温特性确保芯片在极端温度下仍能保持输出电压稳定,降低系统故障风险。

五、典型应用场景

结合其电气参数与宽温特性,LM2576T-12的典型应用集中在以下领域:

  1. 工业控制:PLC模块供电、传感器节点电源、小型伺服电机辅助电源;
  2. 汽车电子:车载导航、行车记录仪、LED氛围灯的12V供电(兼容汽车12V/24V系统);
  3. 户外电源:太阳能充电控制器的降压输出、便携式储能电源的12V端口;
  4. 通信设备:小型基站辅助电源、无线AP供电模块。

六、品牌与技术支持

该芯片由国内知名电源芯片厂商HGSEMI(华冠半导体) 生产,品牌提供完善的技术支持:

  • 详细datasheet:包含电气参数曲线、典型应用电路、外围元件选型指南(如电感值推荐);
  • 应用笔记:针对工业/汽车场景的设计参考,帮助工程师快速完成电路验证;
  • 质量保障:采用成熟工艺与工业级测试标准,确保产品可靠性与一致性。

LM2576T-12凭借“固定输出+内置开关管+宽温适配”的核心优势,成为中小功率降压场景的高性价比选择,尤其适合对成本、可靠性有要求的工业与汽车电子领域。

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