WMSIC Electronic Components

HGSEMI LM2596HVT-ADJ LM2596HVT

ModelLM2596HVT-ADJ
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI LM2596HVT-ADJ
Type
HGSEMI
Minimum package
50 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
LM2596HVT-ADJ
Electronic Component
1
Package
TO-220-5
Electronic Component
DC-DC Power Supply IC
Electronic Component
2.03g
Electronic Component
1
Features
Electronic Component
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0265146232
Operating Temperature
40℃~+125℃
Operating Voltage
4.5V~60V
Switching Frequency
150kHz
Electronic Component
Electronic Component

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

LM2596HVT-ADJ 降压型DC-DC电源芯片产品概述

LM2596HVT-ADJ是HGSEMI(华冠半导体)推出的宽电压输入/输出降压型DC-DC电源芯片,采用异步降压(Buck)拓扑结构,内置高压功率开关管,具备3A持续输出能力,适配工业级及极端环境应用需求。

一、核心功能与拓扑设计

该芯片基于经典降压拓扑,通过内置功率开关管的通断控制,配合电感、电容的储能/滤波作用,实现直流电压的降压转换。支持单通道可调输出,无需外置开关管即可满足中小功率负载的供电需求,结构简洁且可靠性高。

二、关键电气参数解析

1. 宽电压范围

  • 输入电压:覆盖4.5V~60V,兼容5V、12V、24V、48V等常见工业/车载电源,适配低电压电池到高压系统的输入场景;
  • 输出电压:通过外接分压电阻可在1.23V57V范围内灵活调整(参考电压典型值1.23V,误差范围1.193V1.267V),满足1.2V以上低压(如MCU、通信模块)到接近输入电压的高压(如传感器、小型执行器)输出需求。

2. 功率与效率

  • 输出电流:持续3A,峰值电流可满足短时间过载需求;
  • 开关频率:固定150kHz,处于中高频区间,既缩小电感/电容体积(降低方案成本),又避免高频带来的EMI干扰问题,平衡性能与设计难度;
  • 静态电流:典型值2mA,低待机功耗适合电池供电或长期待机系统(如户外监控、便携式设备)。

3. 环境适应性

  • 工作温度:-40℃~+125℃,符合工业级温宽标准,可稳定工作于户外低温、车间高温等极端环境;
  • 同步整流:采用异步整流设计(无内置同步整流管),结构简单,效率典型值达80%~90%(随负载率和电压比变化),成本可控。

三、适用场景与优势

1. 典型应用场景

  • 工业自动化:24V/48V系统转5V/3.3V给PLC、传感器供电;
  • 车载电子:12V/24V汽车电源转12V/5V给车载显示屏、雷达模块供电;
  • 户外设备:太阳能电池(12V/24V)转5V/3.3V给监控摄像头、物联网节点供电;
  • 消费电子:高压适配器转低压给小型家电、充电器供电。

2. 核心优势

  • 宽电压适配:输入输出覆盖广,减少系统中多芯片替换需求;
  • 高可靠性:内置功率管+工业级温宽,适合恶劣环境长期工作;
  • 设计灵活:可调输出+TO-220封装,便于手工焊接与批量生产,散热性能优异;
  • 低功耗待机:2mA静态电流,提升电池供电系统的续航能力。

四、封装与设计要点

1. 封装规格

采用TO-220-5直插封装,引脚数5个(输入、输出、接地、反馈、使能),体积小、散热性好,可通过加散热片进一步提升功率承载能力(如3A满载时建议搭配小型散热片)。

2. 应用设计注意事项

  • 电感选择:建议采用22μH~100μH低损耗功率电感(匹配150kHz频率),感值需根据输入输出电压比计算(如Vin=24V、Vout=5V时,电感感值约33μH);
  • 电容配置:输入电容选耐压≥63V的铝电解电容(如100μF/63V),输出电容选耐压≥输出电压+20%的电容(如5V输出选100μF/10V),可并联陶瓷电容减少纹波;
  • 分压电阻:输出电压公式为Vout=1.23V×(1+R2/R1),R1、R2建议选1kΩ~10kΩ精度电阻(如R1=1kΩ、R2=3.27kΩ时,Vout=5V),避免大阻值电阻增加静态电流损耗;
  • 散热处理:TO-220封装需贴紧PCB焊盘,高负载或高温环境下需加装散热片,保证芯片结温不超过125℃。

五、品牌与可靠性保障

HGSEMI(华冠半导体)是国内专注功率器件研发的厂商,LM2596HVT-ADJ符合RoHS环保标准,通过高温老化、高低温循环等可靠性测试,可稳定工作于工业级场景,为系统提供可靠的供电解决方案。

该芯片以宽电压、高可靠性、设计灵活为核心特点,是工业自动化、车载电子、户外设备等领域中小功率降压供电的优选方案。

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