WMSIC Electronic Components

HXY MOSFET 7805

Model7805
PackageTO-220
BrandHXY MOSFET
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
HXY MOSFET 7805
Type
HXY MOSFET
Minimum package
1000 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HXY MOSFET
Electronic Component
42uV
Electronic Component
7805
Electronic Component
1
Package
TO-220
Electronic Component
Linear Regulator(LDO)
Electronic Component
2.545g
Electronic Component
1
Electronic Component
BM0227239688
Operating Temperature
25℃~+125℃@(Tj)
Operating Voltage
25V
Output
Electronic Component
Output Voltage
5V
Output Current
1A
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.

HXY MOSFET 7805 固定 5V 线性稳压器(TO-220)产品概述

一、产品简介

HXY MOSFET(华轩阳电子)推出的7805 固定输出线性稳压器,采用常见的 TO-220 封装,面向需要稳定低噪声 5V 电源的工业与消费类应用。器件设计支持最大 1A 输出电流,适合单路供电场景,具有较好的电源纹波抑制能力与低输出噪声,适配多种标准电源输入环境。

二、主要参数

  • 输出类型:固定(5.0V)
  • 最大输出电流:1A
  • 静态电流(Iq):典型 5mA
  • 输出噪声:典型 42 µV(宽带)
  • PSRR:73 dB @ 120 Hz
  • 输出极性:正极输出
  • 额定/最大输入电压:支持最高 35V 输入,建议工作电压环境 ≤25V(详见规格书)
  • 工作温度范围:-25 ℃ ~ +125 ℃(Tj)
  • 封装:TO-220,单通道

三、性能特点

  • 高 PSRR(73 dB@120Hz)有效抑制工频及整流纹波,适合直流电源来自开关电源或桥式整流的场合。
  • 低噪声输出(42 µV),便于驱动 ADC、传感器或低噪放大电路时降低系统噪声底。
  • 低静态电流(5 mA)在待机或轻载时有助于降低系统空载功耗。
  • TO-220 封装利于散热处理,简便安装与外挂散热片以提高功率处理能力。

四、热管理与功耗计算

线性稳压器的功耗由压降与负载电流决定:Pd = (Vin - Vout) × Iout。举例:若 Vin=12V、Vout=5V、Iout=1A,则 Pd=7W,需要合适散热措施。TO-220 封装可通过背部金属片连接散热片或直接焊接至金属基板降低结壳热阻,建议在高负载或高环境温度下计算结温并选配合适散热片。

五、典型应用与布局建议

  • 典型应用:嵌入式供电、工业控制板、传感器前端、通信设备、实验室电源模块等。
  • PCB 布局建议:输入端靠近引脚放置旁路电容,输出端放置低等效串联电阻(ESR)电容以保证稳压器稳定性;输入输出地线应短且粗,避免噪声回流影响。常配电容:输入 0.1–1 µF 陶瓷旁路与输出 10 µF 以上钽电或低 ESR 电解电容(具体请参照厂商数据手册的稳定性要求)。

六、封装与引脚

TO-220 三引脚封装,常见正面(标记面)从左至右为:Input、GND、Output。接线顺序可能因品牌略有差异,安装前请以实物或厂商规格书为准。金属背板可作为散热面,与地或散热片绝缘时需注意绝缘处理。

七、使用注意事项

  • 在使用前务必查阅华轩阳电子完整数据手册,确认最大输入电压、热阻、保护功能(如过流、过温)及外部元件建议。
  • 当输入电压接近器件额定上限或输出电流接近 1A 时,必须评估温升并配合散热措施。
  • 对噪声和纹波敏感的应用,应结合输入滤波与输出去耦,避免长大电流回路影响稳压性能。

总结:HXY MOSFET 的这款 7805(TO-220)为需要稳定低噪 5V 输出且具中等功率(1A)能力的应用提供了可靠选择。在实际设计中,应综合考虑输入电压范围、功耗散热及外部去耦以确保长期可靠运行。

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