WMSIC Electronic Components

MICRONE ME78L05PG

ModelME78L05PG
PackageSOT-89-3
BrandMICRONE
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
MICRONE ME78L05PG
Type
MICRONE
Minimum package
1000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
2V@(100mA)
Electronic Component
MICRONE
Electronic Component
ME78L05PG
Electronic Component
1
Package
SOT-89-3
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.132g
Electronic Component
1
Electronic Component
BM0228592365
Operating Temperature
25℃~+125℃@(Tj)
Operating Voltage
30V
Output
Electronic Component
Output Voltage
5V
Output Current
100mA
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.

ME78L05PG 产品概述

一、产品简介

ME78L05PG 是南京微盟(MICRONE)推出的一款固定输出线性低压差稳压器(LDO),输出为正5.0V,单通道设计,最大输出电流100mA。器件适用于需要稳定5V供电且输入电压可达30V的场景,内置短路保护与过热保护,工作可靠,封装为SOT-89-3,便于中小功率模块化设计。

二、主要参数与性能

  • 输出类型:固定(5.0V)
  • 最大输入电压:30V
  • 最大输出电流:100mA
  • 压差(Dropout):2V @ 100mA
  • 电源纹波抑制比(PSRR):80dB(特定频率下)
  • 保护功能:短路保护、过热保护
  • 工作温度范围:-25℃ ~ +125℃(以芯片结温为准)
  • 输出极性:正极,单通道

三、封装与引脚说明

SOT-89-3 小型封装,适合空间受限的板级设计。三引脚布局利于散热和布线,标准封装有利于加工和焊接。具体引脚序号请参考器件数据手册。

四、典型应用场景

  • 便携式设备与消费电子的小功率5V供电
  • 工业控制模块的系统电源
  • 传感器、MCU外围电源与参考电源
  • 仪表与通信设备中对PSRR有要求的模拟前端供电

五、设计与使用要点

  • 由于压差约为2V(在100mA时),输入电压应比5V高出至少该值以保证输出稳压。若负载电流较小,实际压差会更低。
  • 推荐在输入端并联去耦电容以抑制高频干扰;输出端需配合合适的旁路电容以保证稳态与瞬态响应,注意电容等效串联电阻(ESR)对稳定性的影响,具体参数以数据手册为准。
  • 利用短路与过热保护可提高系统安全性,但设计时仍应考虑正常散热措施与限流保护以延长器件寿命。

六、热管理与可靠性

SOT-89-3 封装具有限制的散热能力,工作时需关注功耗(Pd = (Vin - 5V) × Iout)。在高输入差与接近100mA负载工况下,应通过增加铜箔面积或散热片降低结温,避免触发热关断。

七、选型建议

若系统输入电压波动较大、需更高电流或更低压差,可考虑低压差(LDO)或开关型稳压器作为替代;若对PSRR要求高且频段敏感,参考实际测试数据以确认器件性能满足需求。购买与技术细节请参照MICRONE官方数据手册和样片报价。

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