WMSIC Electronic Components

RICHTEK RT8073GQW

ModelRT8073GQW
PackageWDFN-12(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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RICHTEK RT8073GQW
Type
WDFN-12(3X3)
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RICHTEK
Electronic Component
RT8073GQW
Electronic Component
1
Package
WDFN-12(3x3)
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.131g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0230063873
Operating Temperature
40℃~+125℃
Operating Voltage
2.9V~5.5V
Switching Frequency
300kHz~2MHz
Electronic Component
Electronic Component
Output Current
6A

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

RT8073GQW 产品概述

一、产品简介

RT8073GQW 是 RICHTEK 出品的一款高集成降压型开关稳压器,输入电压范围 2.9V ~ 5.5V,最高输出电流 6A,采用降压拓扑并内置高低侧功率开关及同步整流。输出基准 0.8V,支持外部可调,开关频率可在 300kHz ~ 2MHz 之间设定,适用于对尺寸、效率和负载能力均有严格要求的点对点电源应用。工作温度范围为 -40℃ ~ +125℃,静态工作电流(Iq)约 250µA。

二、主要规格要点

  • 功能类型:降压型(Buck)
  • 输入电压:2.9V ~ 5.5V
  • 输出电流:最大 6A
  • 输出类型:可调(基准 0.8V)
  • 开关频率:300kHz ~ 2MHz 可配置
  • 同步整流:内置(提高效率、降低热量)
  • 静态电流:≈250µA
  • 工作温度:-40℃ ~ +125℃
  • 开关管:内置
  • 输出通道数:1
  • 封装:WDFN-12 (3x3) 带裸露焊盘

三、典型特性与优势

该器件高集成度降低外部元件数量,内置同步整流大幅提升中高负载下效率,宽工作频率支持在体积与效率之间灵活权衡。低静态电流适合有待机节能要求的系统;宽温度范围保证工业级可靠性。3×3 WDFN-12 小型封装适合空间受限的应用,同时裸露焊盘利于散热。

四、设计与选型要点

  • 电感选择:建议根据期望电流纹波 ΔI(通常取额定电流的 20%~40%)按公式 L ≈ Vout*(Vin−Vout)/(Vin·fs·ΔI) 估算,并确保电感饱和电流高于最大负载电流。
  • 电容滤波:输入侧采用低 ESR 陶瓷电容以抑制开关尖峰;输出侧优选低 ESR MLCC 或铝电解/固态组合以满足瞬态响应与稳定性要求。
  • 升频权衡:高开关频率可减小电感与输出电容体积,但会增加开关损耗,需在效率与外形尺寸间权衡。
  • 占空比近似:在理想情况 D ≈ Vout/Vin,用于初步参数估算与调试。

五、布局与热管理

  • 裸露焊盘须与 PCB 大面积铜箔和多盏热过孔连接以提升散热能力,降低结温。
  • 开关回路(输入电容、开关管、肖特基或同步二极管回路)尽量靠近器件布置以减小寄生电感,抑制 EMI。
  • 输出电感、电容与采样电阻布局应保证短回路路径与良好接地,以优化稳定性与纹波性能。

六、典型应用

适用于移动与便携设备、电信设备的点对点供电、FPGA/CPU/ASIC 的核心电源、机顶盒、路由器、工业控制模块及任何需要 6A 级稳压的低压供电场景。

七、封装与采购提示

封装为 WDFN-12 (3×3) 带裸露焊盘,适合自动贴装与回流焊流程。选型时确认系统最大输入电压、瞬态要求及热设计能力;样片评估中重点检查热升与效率曲线、稳定性与输出瞬态响应。

八、结语

RT8073GQW 提供高电流输出与较高集成度,适合对效率、体积与热性能有综合要求的降压电源设计。合理的元件选择与 PCB 热管理是实现稳定、高效输出的关键。若需具体参考电路、布线范例或性能曲线,请结合官方数据手册进行后续设计验证。

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