WMSIC Electronic Components

RICHTEK RTQ2569-50GQW-QA RTQ2569

ModelRTQ2569-50GQW-QA
PackageWDFN-8L(3x3)
BrandRICHTEK
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

20 specifications

Core information

Product name
RICHTEK RTQ2569-50GQW-QA
Type
RICHTEK
Unit
Electronic Component
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
200mV@(10mA)
Electronic Component
RICHTEK
Electronic Component
RTQ2569-50GQW-QA
Electronic Component
1
Package
WDFN-8L(3x3)
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.14g
Electronic Component
1
Electronic Component
BM0264933834
Operating Temperature
40℃~+125℃@(Tj)
Operating Voltage
36V
Output
Electronic Component
Output Voltage
5V
Output Current
100mA

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

RTQ2569-50GQW-QA 产品概述

一、产品简介

RTQ2569-50GQW-QA 是立锜(RICHTEK)推出的一款固定输出 5.0V 低压差线性稳压器(LDO),面向对待机功耗和输出稳定性有严格要求的便携与工业应用。器件采用 WDFN-8L (3×3 mm) 小外形封装,集成过流保护与过热保护,适合单通道、正极输出的供电管理场景。

二、主要电气参数

  • 输出类型:固定(5.0V)
  • 工作电压(最高输入):36V
  • 最大/额定输出电流:资料中标称低压差 0.2A 级别,常见应用工况下可稳定工作于 100mA 等中低负载
  • 压差(Dropout):200mV @ 10mA(小电流下表现优异;随负载电流增加压差会相应上升)
  • 静态电流(Iq):3.5 µA(极低静态电流,利于电池供电系统延长待机时间)
  • 输出极性:正极
  • 输出通道数:1

三、保护与可靠性

RTQ2569-50GQW-QA 集成常用保护功能,提升系统的鲁棒性:

  • 过流保护(OCP):在短路或异常负载条件下限制输出电流,避免器件与负载损坏。
  • 过热保护(OTP):温度过高时自动限制或关断输出,防止热失控并实现自恢复功能。
  • 工作温度范围:-40℃ ~ +125℃(Tj),适应宽温工作环境,适合工业与高温场景。

四、封装与热管理

  • 封装:WDFN-8L (3×3 mm),体积小、热阻低、适合集成度高的电路板设计。
  • 热管理建议:尽管器件在低负载下功耗极低,但在较高输出电流或较大压差时功耗和结温会上升。推荐在 PCB 上使用热铜箔散热母线/焊盘,并通过底部散热焊盘与地层相连以增强散热效果。

五、应用场景

基于其低静态电流、低压差和宽温特性,适用场景包括:

  • 电池供电设备与便携终端(待机/休眠功耗敏感)
  • 传感器节点、物联网设备(稳定的 5V 本地电源)
  • 工业控制与仪表(宽温及可靠性要求)
  • 通信与外围模块供电(噪声容忍度一般的模拟/数字电路)

六、设计要点与注意事项

  • 输入/输出去耦:建议在输入端和输出端配置低 ESR 陶瓷电容以保证稳压环路稳定性与瞬态响应,具体容值与 ESR 要参考官方数据手册测试条件。
  • 布局:尽量将输入电容靠近器件 VIN 引脚,输出电容靠近 VOUT 引脚,减小寄生阻抗和环路面积。
  • 热设计:评估最大功耗((VIN - VOUT) × IOUT),在高 VIN 或高 IOUT 情况下做好 PCB 散热规划。
  • 保护配合:尽管器件有内部保护,仍建议在系统级设计中考虑软启动、输入浪涌保护与合适的保险元件以提升整体可靠性。

七、总结

RTQ2569-50GQW-QA 是一款针对低功耗与高可靠性应用优化的固定 5V LDO,具有极低静态电流、良好低压差特性以及常见的保护功能,封装紧凑适合空间受限的设计。通过合理的 PCB 热设计与输入/输出电容选择,可在便携与工业级应用中提供稳定、可靠的线性稳压解决方案。建议在设计前仔细阅读官方数据手册以确认具体电性能曲线与外部元件要求。

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