WMSIC Electronic Components

XLSEMI XL9028

ModelXL9028
PackageTO-263-7L
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
XLSEMI XL9028
Type
XLSEMI
Minimum package
800 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
XLSEMI
Electronic Component
XL9028
Electronic Component
1
Package
TO-263-7L
Electronic Component
DC-DC Power Supply IC
Electronic Component
1.952g
Electronic Component
1
Features
Electronic Component
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0264553921
Operating Temperature
40℃~+125℃
Operating Voltage
5V~45V
Switching Frequency
96kHz~144kHz
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.

XL9028 产品概述

一、产品简介

XL9028(品牌:XLSEMI / 芯龙)是一款同步整流降压型开关稳压器,集成高侧/低侧开关管,单通道输出,适用于5V45V宽输入电压的电源设计。输出可调范围1.25V40V,最大输出电流6A,开关频率中心值约120kHz(96kHz144kHz 可变),静态工作电流仅2.3mA。器件以TO-263-7L封装提供,工作温度覆盖-40℃+125℃,并内置过流保护,适合工业、通信、电源模块等对体积与效率有要求的场景。

二、主要特性

  • 输入电压:5V ~ 45V(宽输入范围,适配多种总线与电池供电)
  • 输出电压:可调 1.25V ~ 40V(内部参考电压1.25V)
  • 最大输出电流:6A(连续输出)
  • 开关频率:96kHz ~ 144kHz(典型 120kHz)
  • 同步整流:内置同步整流MOSFET,提高低压和高电流下的效率
  • 静态电流:2.3mA(低待机损耗)
  • 保护功能:过流保护(OCP),具体保护门限与行为请参照数据手册
  • 封装:TO-263-7L(便于散热与工艺安装)

三、典型应用场景

  • 工业控制设备、PLC、驱动模块的中高电压降压电源
  • 通信设备、基站供电子板
  • 车载电子(需确认整机环境与符合性要求)和电源管理模块
  • 各类嵌入式系统、电机控制前端供电

四、外围元件与设计建议

  • 输出设定:采用分压电阻设定输出电压,Vout = 1.25V × (1 + Rtop/Rbottom),保证反馈节点精度并选用低温漂电阻。
  • 电感:选择饱和电流 >6A 的功率电感,示波器检查峰值电流与纹波,典型值视输出电压/电流与纹波要求而定。
  • 输入/输出电容:输入端建议并联陶瓷与低ESR电解(或固态)电容以抑制尖峰与稳定输入,输出侧优先陶瓷或低ESR型以降低纹波。
  • 布局:开关环路(开关管、二极管/同步管、输入旁路电容)尽量短且集中,反馈线远离开关噪声源,接地采用单点或平面回流。使用TO-263-7L时建议在焊盘下方开敞铜区并辅以过孔散热。

五、热管理与可靠性

在高输入差与大输出电流情况下,器件功耗上升,需评估结温并做好散热设计。推荐在PCB下方和周围增加铜面积、布置热孔通至另一层,并预留足够的散热裕量;实际应用中请根据环境温度与负载工况进行热仿真或实测。

六、注意事项与资料获取

XL9028 提供了低静态电流、宽输入电压与高输出电流的平衡方案,但具体的保护行为、开机顺序、软启动及环路补偿细节请以厂商数据手册为准。在设计阶段应验证稳定性、瞬态响应与效率曲线,并根据PCB工艺调整布局与滤波元件。如需样片、评估板或完整数据手册,请联系 XLSEMI(芯龙)或其授权分销渠道获取最新资料。

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