WMSIC Electronic Components

MICRONE ME7805A3G

ModelME7805A3G
PackageTO-220
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 Electronic Component

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICRONE ME7805A3G
Type
MICRONE
Minimum package
1000 盒

Technical parameters

Electronic Component
Electronic Component
Electronic Component
2V@(100mA)
Electronic Component
MICRONE
Electronic Component
ME7805A3G
Electronic Component
1
Package
TO-220
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.5g
Electronic Component
1
Electronic Component
BM0257642222
Operating Temperature
25℃~+125℃@(Tj)
Operating Voltage
35V
Output
Electronic Component
Output Voltage
5V
Output Current
1.2A
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.

ME7805A3G 产品概述

一、概述

ME7805A3G 是 MICRONE(南京微盟)推出的一款高耐压、固定输出的线性稳压器(LDO),输出电压为 5V,最大输出电流 1.2A,适用于需要稳定低噪声电源的中功率电子设备。器件采用 TO-220 封装,便于散热管理与电路板安装,内置短路保护和过热保护,可靠性高,适合集成电源管理方案。

二、主要参数

  • 输出类型:固定
  • 输入工作电压上限:35V
  • 输出电压:5V
  • 最大输出电流:1.2A
  • 压差(Dropout):2V @ 100mA(在更高电流下压差通常增加,设计时应留足余量)
  • 静态电流(Iq):6mA
  • PSRR:68dB @ 120Hz(对交流电网与开关噪声抑制能力强)
  • 保护功能:短路保护、过热保护
  • 工作温度:-25℃ ~ +125℃(以结温 Tj 表示)
  • 输出极性:正极,单输出通道
  • 封装:TO-220

三、核心特性

  • 高耐压输入(最高 35V),便于直接驱动来自宽电压轨的电源。
  • 较高 PSRR(68dB@120Hz),有利于降低电源纹波对模拟/数字电路的影响。
  • 低静态电流 6mA,可在待机或轻载条件下降低系统静耗。
  • 集成短路与过热保护,提升系统安全性与可靠性。

四、典型应用

  • 工业控制与自动化设备电源模块
  • 通讯设备辅助电源、接口电源(如为逻辑电路、传感器供电)
  • 仪器仪表、测试设备的低噪声 5V 电源
  • 车用电子(注意满足更严苛的车规要求与温度/热管理设计)

五、设计与选型注意事项

  • 输入电压与压差:在高电压差场合(Vin - Vout 较大)工作时,器件功耗 P = (Vin - Vout) × Iout 可能很高,应计算结温并配合合适散热。
  • 输出电流与散热:满载 1.2A 时热耗显著,推荐使用外部散热器或将 TO-220 固定在金属散热片上。
  • 稳定性与电容:为保证稳定与抑制瞬态,建议在输入端靠近引脚处布置去耦电容;输出端建议使用低 ESR 电容(如 MLCC 或合适电解/钽电容),并遵循厂方推荐的容值与等效串联电阻范围。
  • 保护机制:短路与过热保护为自恢复特性,但频繁进入保护会影响可靠性,应在系统层面避免长期短路或过载。

六、封装与热管理

TO-220 封装提供良好的机械固定与热流路径,便于通过背部金属片外接散热器。实际散热设计应结合基板布局、空气对流条件与最大环境温度来计算结温,必要时采取风冷或更大的散热片。

七、结论

ME7805A3G 是一款适用于中功率场合的高耐压 5V LDO,凭借较高的 PSRR、内置保护与 TO-220 的良好散热性,可为工业与通信等对电源质量有较高要求的系统提供稳定可靠的电源解决方案。选型时应重点考虑输入电压差、功耗与散热安排,并遵循输出电容和布线的稳定性要求。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.