WMSIC Electronic Components

XLSEMI XL2576T-ADJE1 XL2576T

ModelXL2576T-ADJE1
PackageTO-220-5
BrandXLSEMI
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 Electronic Component

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
XLSEMI XL2576T-ADJE1
Type
XLSEMI
Minimum package
50 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
XLSEMI
Electronic Component
XL2576T-ADJE1
Electronic Component
1
Package
TO-220-5
Electronic Component
DC-DC Power Supply IC
Electronic Component
2.714g
Electronic Component
1
Features
Electronic Component
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0266045568
Operating Temperature
40℃~+125℃@(TJ)
Operating Voltage
4.5V~40V
Switching Frequency
52kHz
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.

XL2576T-ADJE1 DC-DC降压电源芯片产品概述

一、核心参数总览

XL2576T-ADJE1是芯龙半导体(XLSEMI)推出的单通道非同步降压型DC-DC电源芯片,核心参数覆盖宽电压范围与大电流输出,适配多场景电源需求,具体如下:

  • 拓扑结构:降压式(Buck)
  • 输入电压范围:4.5V~40V(兼容5V USB、12V/24V/36V工业/车载电源)
  • 输出电压范围:1.23V~37V(通过外部分压电阻可调,覆盖低功耗MCU、大功率负载)
  • 最大输出电流:3A(持续输出能力满足中小功率负载)
  • 开关频率:固定52kHz(EMI特性稳定,滤波设计难度低)
  • 静态电流(Iq):典型2mA(待机功耗低,适配功耗敏感场景)
  • 工作温度范围:-40℃~+125℃(结温TJ,满足工业级、车载恶劣环境)
  • 整流方式:非同步(需外置续流二极管,电路简单可靠)
  • 开关管:内置(无需外置大功率MOS,简化BOM)
  • 封装:TO220-5L(5脚直插,便于焊接与布局)

二、关键功能与优势

1. 宽电压适配能力

输入电压覆盖4.5V至40V,可兼容从5V USB到36V工业电源的多种供电场景;输出电压通过外部电阻可调至1.23V(接近芯片内部基准)至37V,既能适配1.8V/3.3V/5V数字电路,也可支持12V/24V功率负载,无需更换芯片即可满足多场景需求。

2. 内置开关管简化设计

芯片内置高压开关管,无需额外采购大功率MOSFET,降低BOM成本与PCB布局复杂度;同时内置驱动电路已优化,避免外置驱动带来的信号干扰问题。

3. 稳定的EMI特性

固定52kHz开关频率属于中低频段,电磁干扰(EMI)辐射与传导噪声相对较低,配合简单LC滤波即可满足多数应用的EMI标准,无需复杂屏蔽设计。

4. 低静态电流与宽温可靠性

典型2mA静态电流,系统待机/轻载时仍保持低功耗,适合便携式设备、智能电源等场景;-40℃至+125℃结温范围,覆盖工业级(-40~85℃)与部分车载环境,应对温度波动能力强。

5. 非同步整流的成本优势

采用非同步整流(外置续流二极管),相比同步整流电路结构更简单,无MOS管交叉导通风险,可靠性更高;适合对效率要求非极致,但对成本、可靠性要求高的场景(如工业控制、车载电子)。

三、典型应用领域

1. 工业控制系统

适配12V/24V/36V工业电源,为PLC、传感器、执行器、HMI等提供稳定的1.8V/3.3V/5V输出,宽温能力满足工厂车间恶劣环境。

2. 车载电子设备

支持12V/24V车载电源输入,可用于车载导航、行车记录仪、LED车灯驱动等,结温范围应对车载温度波动。

3. 消费电子与便携式设备

4.5V输入兼容5V USB,可用于移动电源、手持设备充电管理;可调输出适配大功率LED台灯、应急照明等。

4. 通信与网络设备

为小型基站、路由器、交换机提供稳定电源,低静态电流适配不同电网场景。

5. 电源适配器替代

相比线性电源,效率可达85%以上,体积更小,可替代12V/24V输出线性电源,降低功耗与成本。

四、设计要点提示

  1. 续流二极管:需选快恢复二极管(如1N5822、UF4007),耐压≥50V,电流≥3A;
  2. 电感选型:配合52kHz频率,选100μH左右电感(如100μH/3A),纹波电流≤额定电流30%;
  3. 输出电容:用低ESR电解电容(≥220μF/35V)或陶瓷电容,提升纹波抑制;
  4. 反馈电阻:输出电压公式为Vout=1.23V×(1+R1/R2),R2选1kΩ~10kΩ,用1%精度电阻保证精度;
  5. 散热设计:TO220-5L需加散热片(面积≥20cm²),输出3A时保证结温≤125℃。

XL2576T-ADJE1凭借宽电压、高可靠性与低成本优势,成为工业、车载、消费电子等领域中小功率降压电源的优选方案。

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