WMSIC Electronic Components

RICHTEK RT9166A-12GXL RT9166A

ModelRT9166A-12GXL
PackageSOT-89-3
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 21+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RICHTEK RT9166A-12GXL
Type
RICHTEK
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
580mV@(600mA)
Electronic Component
RICHTEK
Electronic Component
RT9166A-12GXL
Electronic Component
1
Package
SOT-89-3
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.143g
Electronic Component
1
Electronic Component
BM0266109868
Operating Temperature
40℃~+85℃@(Ta)
Operating Voltage
5.5V
Output
Electronic Component
Output Voltage
1.2V
Output Current
600mA
Output Type
Electronic Component

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

RT9166A-12GXL 线性稳压器(LDO)产品概述

一、产品核心定位与应用场景

RT9166A-12GXL是台湾立锜(RICHTEK)推出的固定输出型线性稳压器(LDO),主打小体积、高可靠性,专为需要稳定1.2V输出、中等电流(最大600mA)的低压设备设计。其应用场景覆盖多个领域:

  • 便携式电子:智能手机、智能手表、蓝牙耳机等移动设备的辅助供电模块;
  • 消费电子:小型家电控制器、智能家居节点(如温湿度传感器、智能开关);
  • 工业控制:低功耗传感器节点、微型PLC的电源转换;
  • 车载电子:车载小型显示屏、辅助传感器的电源(工作温度支持-40℃~85℃,满足车载环境基础需求)。
    核心优势是在紧凑封装下实现稳定供电,同时具备多重保护,降低设备故障风险。

二、关键电气性能参数解析

该产品的核心参数直接决定其适用场景,关键指标如下:

  1. 输入输出特性:输入工作电压支持至5.5V(实际输入需≥1.2V+0.58V=1.78V,建议≥2V保证稳定),输出固定1.2V,最大输出电流600mA,满足多数小型负载需求;
  2. 纹波抑制:电源纹波抑制比(PSRR)达55dB@1kHz,可有效抑制输入高频纹波,减少对敏感电路(如模拟传感器、低功耗MCU)的干扰;
  3. 静态电流与压差:静态电流仅220μA,适合电池供电的低功耗设备;压差580mV@600mA,输入只需比输出高0.58V即可稳定工作,对输入电压要求宽松;
  4. 保护集成:内置过流、短路、过热保护,无需外部元件即可保障设备安全。

三、封装与引脚配置

RT9166A-12GXL采用SOT-89-3封装,尺寸约2.9mm×2.5mm×1.5mm,特点如下:

  • 体积紧凑:适合空间受限的PCB设计(如便携式设备高密度布局);
  • 散热适配:通过合理PCB layout(增加散热焊盘)可满足600mA负载下的散热需求;
  • 引脚定义(标准SOT-89-3):
    • Pin1:输出端(Vout);
    • Pin2:接地端(GND);
    • Pin3:输入端(Vin);
      需注意引脚顺序,避免焊接错误。

四、核心保护功能说明

多重保护是产品可靠性的核心,各功能作用如下:

  1. 过流保护(OCP):输出电流超额定值(约600mA~700mA)时,自动限制电流,避免负载过载损坏;
  2. 短路保护(SCP):输出端与地短路时,立即切断输出,防止大电流烧毁芯片及周边元件;
  3. 过热保护(OTP):芯片结温超150℃左右时自动关断,温度回落至安全范围后恢复,避免过热损坏。

五、工作环境与可靠性

  • 温度范围:-40℃~+85℃(环境温度Ta),覆盖工业级基本需求,可用于户外、车载低温/高温场景;
  • 可靠性测试:经过ESD、温度循环、湿度测试,适合批量生产;
  • ESD防护:支持人体模式(HBM)2kV以上防护,降低生产/使用中的静电损坏风险。

六、选型与应用注意事项

为保证性能,应用时需注意:

  1. 电容配置:输入端并联1μF10μF陶瓷电容,输出端并联1μF4.7μF陶瓷电容,靠近芯片引脚放置;
  2. 负载限制:避免长期超600mA工作,若负载电流大需评估PCB散热;
  3. 输入电压:实际输入需在1.78V~5.5V范围内,避免过高损坏芯片;
  4. 焊接工艺:采用回流焊,避免手工焊接温度过高损坏芯片。

总结:RT9166A-12GXL是高性价比固定输出LDO,适合小电流、低功耗、空间受限场景,集成多重保护与高纹波抑制,是便携式电子、消费电子等领域的理想电源选择。

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