WMSIC Electronic Components

HGSEMI LM2596T-ADJ LM2596T

ModelLM2596T-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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI LM2596T-ADJ
Type
HGSEMI
Minimum package
1000 盒

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
LM2596T-ADJ
Electronic Component
1
Package
TO-220-5
Electronic Component
DC-DC Power Supply IC
Electronic Component
2.72g
Electronic Component
1
Features
Electronic Component
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0227708175
Operating Temperature
40℃~+125℃
Operating Voltage
5V~40V
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.

LM2596T-ADJ 产品概述

一、概述

LM2596T-ADJ(HGSEMI/华冠,TO-220-5封装)是一款降压型开关稳压器,适用于5V~40V宽输入电压范围的直流降压场合。该器件为非同步整流降压拓扑,内部集成开关管,最大输出电流可达3A,开关频率约150kHz,静态工作电流约5mA,工作温度范围-40℃至+125℃,输出电压可通过外部分压电阻进行调节,适合对效率、热管理和成本有综合考虑的电源设计。

二、主要特性

  • 宽输入电压:5V~40V,适配常见车载、工业和通信供电总线。
  • 输出电流:最高可支持3A连续输出(需根据散热条件评估)。
  • 开关频率:典型150kHz,有助于在合理体积下选用合适电感和电容。
  • 非同步整流:需外接肖特基二极管承担整流与续流,器件简单且成本较低。
  • 低静态电流:Iq约5mA,有利于轻载或待机功耗控制。
  • 可调输出:通过外部反馈分压器实现精确输出电压设定。
  • 封装:TO-220-5,便于加装散热片或安装在散热架上。

三、典型应用场景

  • 工业控制与自动化电源模块
  • 车载电源(需注意输入反接/浪涌保护)
  • 通信设备与基站外围电源
  • 嵌入式系统与单板电源转换

四、电气与热管理要点

  • 由于为非同步整流,选择肖特基二极管时需满足电流≥3A且反向耐压高于最大输入电压。
  • 输出电感需选择3A以上电流额定、低直流电阻(DCR)且对150kHz有良好性能的产品。
  • 输出电容宜采用低ESR电解或固态铝电解并配合适量陶瓷旁路,保证环路稳定与低纹波。
  • TO-220-5封装散热能力依赖于散热片和PCB散热,满载时建议加装散热片或采用良好铜厚、过孔布局的散热设计。
  • 开启频率与元件布局直接影响EMI,输入/输出端增加适当滤波和走线优化可降低干扰。

五、典型外围建议与布局

  • 反馈网络按参考基准电压进行比例设计(常见采用精密电阻以减小误差并提高稳定性)。
  • 输出整流使用低正向压降肖特基二极管,并尽量靠近器件布置以减少环路面积。
  • 输入旁路电容靠近输入引脚放置,输入与输出环路走线应短且粗,注意分割信号与功率地。

六、选型注意事项

  • 评估实际最大输入电压和瞬态尖峰,选择合适耐压余量的外部元件。
  • 满载效率受输入-输出压差、开关频率和外部器件损耗影响,若空间允许并需更高效率可考虑同步整流方案。
  • 关注器件散热条件与工作环境温度,必要时降额设计或采取强制散热。

七、总结

LM2596T-ADJ(HGSEMI,TO-220-5)是一款成熟、应用广泛的降压型开关稳压器,适合需要3A级输出、宽输入范围和可调输出的中低功率电源设计。合理选择外围器件和良好的热/布局设计可在保证稳压精度与可靠性的同时获得较高的转换效率。

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