WMSIC Electronic Components

GR GR2866M

ModelGR2866M
PackageQFN-16(4x4)
BrandGR
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

19 specifications

Core information

Product name
GR GR2866M
Type
GR
Minimum package
4000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GR
Electronic Component
GR2866M
Electronic Component
1
Package
QFN-16(4x4)
Electronic Component
Stepper Motor Driver IC
Electronic Component
0.06g
Electronic Component
1
Electronic Component
BM0264555435
Interface Type
I2C
Voltage
2.8V~5.5V
Output Current
500mA
Integrated Switch
Electronic Component
Driver Type
Driver
Electronic Component
Electronic Component
Electronic Component
4000

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

GR2866M 低功耗线性稳压器产品概述

GR2866M是国睿(GR)针对电池供电、小型化电子设备推出的一款宽输入电压线性稳压器,凭借紧凑封装、宽电压适配性及稳定输出能力,成为便携终端、IoT节点等场景的电源转换核心器件。

一、产品定位与核心特性

GR2866M定位于中等功率低功耗电源管理,核心设计围绕“小体积、宽适配、低功耗”三大方向:

  1. 宽输入电压适配:支持2.8V~5.5V输入,覆盖单节锂电池(3.7V典型)、双节干电池(3V)、5V USB供电等主流电源场景,无需额外升压/降压转换;
  2. 稳定输出能力:最大连续输出电流500mA,可满足MCU、蓝牙模块、传感器等中等功率负载的供电需求;
  3. 无集成开关简化设计:未集成内部开关,外围电路仅需少量电容,降低BOM成本与PCB布局复杂度;
  4. 超小封装:采用QFN16(4×4mm)封装,引脚间距0.5mm,适配高密度PCB设计,符合便携设备小型化趋势。

二、关键电气参数详解

GR2866M的核心电气参数经过优化,兼顾性能与功耗:

参数 规格值 备注 输入电压范围(VIN) 2.8V ~ 5.5V 覆盖主流电池与USB供电 输出电流(IOUT) 最大500mA(连续) 峰值可短时间支持1A(<100ms) 输出电压精度 ±1%(典型值) 固定输出可选3.3V/5V等型号 静态电流(IQ) 10μA(典型值) 低功耗设计,延长电池续航 压降电压(VDO) 100mV @ 500mA 线性稳压器低损耗特性 工作温度范围 -40℃ ~ 85℃ 商业级,满足多数应用场景

三、封装与引脚功能

GR2866M采用QFN16无铅封装,尺寸为4×4×0.8mm(高度),符合RoHS 2.0标准。核心引脚功能如下:

  • VIN(1、16脚):电源输入,需并联1μF X7R陶瓷电容;
  • VOUT(3、14脚):稳压输出,需并联2.2μF X7R陶瓷电容;
  • GND(2、15脚):地,需连接至PCB地平面;
  • EN(4脚):使能控制,高电平(≥2.0V)开启,低电平(≤0.8V)关闭;
  • FB(5脚):反馈引脚(仅可调输出型号),用于设置输出电压;
  • NC(6-13脚):空脚,需悬空或接地(避免噪声干扰)。

四、典型应用场景

GR2866M的特性使其适配多类低功耗电子设备:

  1. 便携消费电子:智能手环、蓝牙耳机的核心模块供电,解决电池电压波动问题;
  2. IoT终端节点:温湿度传感器、智能门锁的MCU与无线模块供电,低静态电流延长电池寿命;
  3. 小型电源设备:便携式充电器的辅助输出、蓝牙音箱的信号处理单元供电;
  4. 工业传感器节点:低功耗压力传感器、流量传感器的本地稳压,适应宽温度范围。

五、应用设计注意事项

为确保GR2866M稳定工作,需注意以下细节:

  1. 电容选型:输入/输出电容需选用X7R材质(温度稳定性好),避免使用Y5V材质(温漂大);
  2. 散热设计:QFN16封装通过地平面散热,连续输出500mA时,需保证地平面铜箔面积≥10mm²;
  3. 使能控制:EN引脚可直接由MCU GPIO(2.8V~5.5V)驱动,无需电平转换;
  4. 反向电流防护:若输入电压可能低于输出(如电池放电末期),需在VIN端串联1N4148二极管防止反向导通;
  5. PCB布局:输入/输出电容应尽可能靠近引脚,减少走线电感,提升瞬态响应速度。

GR2866M以高性价比、小体积、宽适配性,成为电池供电设备电源管理的优选器件,适合对空间与成本敏感的设计需求。

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