WMSIC Electronic Components

RICHTEK RT2101AGQW

ModelRT2101AGQW
PackageWQFN-16(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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RICHTEK RT2101AGQW
Type
RICHTEK
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RICHTEK
Electronic Component
RT2101AGQW
Electronic Component
1
Package
WQFN-16(3x3)
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.142g
Electronic Component
1
Features
Frequency Synchronous; Built-in Current Resistor
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0258717731
Operating Temperature
40℃~+85℃@(TA)
Operating Voltage
2.95V~6V
Switching Frequency
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.

RT2101AGQW 概述

一、主要参数概览

RT2101AGQW 是一款降压型(Buck)同步整流 DC-DC 转换器,输入电压范围 2.95V ~ 6V,输出电压可调 0.827V ~ 3.6V,最高输出电流 3A。内部集成开关管,开关频率固定在 2MHz,静态工作电流(Iq)约 550µA,工作温度范围 -40℃ ~ +85℃。封装为 WQFN-16 (3×3mm),适合空间受限的高密度应用。品牌:RICHTEK(台湾立锜)。

二、关键特性与优势

  • 同步整流:提高转换效率,减小外部整流器件数量和功耗。
  • 高频开关(2MHz):允许使用更小体积的电感和输入/输出电容,有利于板级尺寸缩减。
  • 宽输入与可调输出:能兼容常见单节/双节锂电池和 5V 总线,输出可精准设定以驱动处理器、FPGA、传感器等负载。
  • 低静态电流:550µA 的待机消耗适合对功耗敏感的应用场景,但并非超低功耗器件。

三、典型应用场景

  • 移动/便携设备的主/子电源
  • 工业控制与嵌入式系统的低压电源
  • 通信与消费类电子的小功率点供电
  • 需要高密度布局的电源模块

四、设计建议

  • 电感:建议选用额定电流 > 输出电流的 20–30% 余量的低 DCR、低损耗功率电感;2MHz 工作频率允许 0.47–2.2µH 的选择,具体根据输出纹波和占空比调整。
  • 输入/输出电容:优先使用 X5R/X7R 陶瓷电容以确保低 ESR、低纹波,输入侧建议并联适量 4.7µF–22µF,输出侧 10µF–100µF 视负载纹波需求而定,并在靠近芯片处放置 0.1µF 陶瓷旁路。
  • 反馈网络:输出为可调,使用高精度电阻设定分压比,注意布局中的热漂移与噪声耦合。
  • 布局与散热:WQFN 底部焊盘需焊接完整大尺寸地/散热焊盘,尽量缩短开关节点(SW)、输入电容与地之间的回流环路,固体地平面有利散热与抑制 EMI。
  • 噪声与 EMI:2MHz 开关频率提高了开关噪声频段,建议采用输入滤波、合适的磁屏蔽及走线隔离以控制辐射。

五、注意事项

  • 高频工作下芯片和电感的温升不可忽视,实际功率损耗与效率应在目标负载与环境温度下验证。
  • 输出设置接近上限或输入压差较小时功率损耗上升,应保证器件在额定工况下的安全裕度。
  • 在严苛工业环境或更宽温度范围需求时,需检验额外的热/可靠性指标。

RT2101AGQW 以其内置 MOSFET、2MHz 高频和 3A 输出能力,适合在体积受限且需高密度电源设计的场合替代传统中低频解决方案。设计时合理选择磁性件与电容、并注意 PCB 布局与散热,可获得稳定且高效的电源表现。

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