WMSIC Electronic Components

RICHTEK RTQ2105GQWT-QA RTQ2105GQWT

ModelRTQ2105GQWT-QA
PackageWQFN-24(4x4)
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 26+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
RICHTEK RTQ2105GQWT-QA
Type
RICHTEK
Unit
Electronic Component
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RICHTEK
Electronic Component
RTQ2105GQWT-QA
Electronic Component
1
Package
WQFN-24(4x4)
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.187g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0263668539
Operating Temperature
40℃~+150℃
Operating Voltage
3V~36V
Switching Frequency
300kHz~2.2MHz
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.

RICHTEK RTQ2105GQWT-QA DC-DC降压电源芯片产品概述

一、核心功能定位与应用方向

RTQ2105GQWT-QA是台湾立锜(RICHTEK)推出的同步降压型DC-DC电源芯片,主打「宽电压适配、高效率转换、小体积集成」三大核心特性,可实现输入直流电压到可调低/中压输出的高效转换,覆盖多场景电源供电需求。

其典型应用场景包括:

  • 车载电子:12V/24V车载系统的辅助电源(如车机、胎压传感器、ADAS模块供电);
  • 工业控制:PLC、伺服驱动器的低功耗控制电路、传感器供电;
  • 便携式设备:电池供电的手持仪器(如万用表、环境检测仪);
  • 消费电子:智能家居设备、小型充电适配器的降压模块。

二、关键性能参数解析

RTQ2105GQWT-QA的参数设计围绕「宽适配、高效率、低功耗」展开,核心参数如下:

2.1 宽电压输入输出范围

  • 输入电压:3V~36V,兼容12V/24V工业/车载电源,也支持3.7V锂电池、5V USB等低压输入;
  • 输出电压:800mV~36V,覆盖MCU内核电压(1.2V/1.8V)、传感器供电(5V)到高压辅助电源(30V以内),仅需2个外部分压电阻即可灵活调节输出值。

2.2 高效率与低功耗设计

  • 同步整流:内置同步整流管,无需外置续流二极管,典型负载下转换效率可达95%,比异步整流方案效率提升10%以上,显著减少发热;
  • 低静态电流:仅40μA(典型值),适合电池供电的待机场景,延长设备续航;
  • 可调开关频率:300kHz~2.2MHz,可通过外部电阻选择频率(高频对应小电感/电容,低频对应低EMI),兼顾体积与电磁兼容性。

2.3 可靠性与环境适应性

  • 宽温工作:-40℃+150℃,满足工业级(-40+85℃)与车载级(-40~+125℃)温度要求,适应极端环境;
  • 内置保护:结合立锜同类芯片设计逻辑,推测支持过流、过压、过热保护,提升系统稳定性。

三、封装与散热特性

RTQ2105GQWT-QA采用WQFN-24(4×4mm)封装,是高密度小体积封装的典型代表:

  • 尺寸优势:4×4mm的紧凑封装,适合对PCB空间要求严格的设备(如小型车载控制器、便携式仪器);
  • 散热设计:WQFN封装热阻低(典型值~30℃/W),结合3A最大输出电流,典型应用中无需额外散热片即可稳定工作;
  • 引脚布局:24引脚兼顾信号完整性与外围元件布局,布线方便。

四、设计易用性与外围简化

RTQ2105GQWT-QA大幅降低了电源设计的复杂度:

  • 内置开关管:无需外置功率MOSFET,减少元件数量与PCB面积;
  • 可调输出:仅需2个分压电阻即可设置输出电压,无需编程;
  • 单通道输出:电路结构简单,适合单路电源供电的系统;
  • 宽频率适配:可根据EMI要求或体积需求选择开关频率,灵活度高。

五、典型应用示例

以车载12V系统的MCU供电为例:

  • 输入:12V车载电源(波动9V~16V,符合输入范围);
  • 输出:设置3.3V(MCU内核电压),通过10kΩ与22kΩ分压电阻实现;
  • 负载:MCU+周边电路总电流150mA,效率达92%以上;
  • 环境:-40℃~+85℃,芯片稳定工作无额外散热需求。

六、总结

RTQ2105GQWT-QA凭借「宽电压范围、高效率、小封装、低静态电流」等优势,成为多场景电源设计的优选方案。其适配工业、车载、便携式设备等领域,简化外围电路的同时提升系统可靠性,适合对体积、效率、环境适应性有要求的电源项目。

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