WMSIC Electronic Components

MSKSEMI L7818CV(MS) L7818CV

ModelL7818CV(MS)
PackageTO-220
BrandMSKSEMI
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MSKSEMI L7818CV(MS)
Type
MSKSEMI
Minimum package
50 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
2V@(1A)
Electronic Component
MSKSEMI
Electronic Component
110uV
Electronic Component
L7818CV(MS)
Electronic Component
1
Package
TO-220
Electronic Component
Linear Regulator(LDO)
Electronic Component
2.54g
Electronic Component
1
Features
Electronic Component
Electronic Component
BM0264464044
Operating Temperature
0℃~+150℃@(Tj)
Operating Voltage
35V
Output
Electronic Component
Output Voltage
18V

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

L7818CV(MS)线性稳压器产品概述

L7818CV(MS)是国内半导体厂商MSKSEMI(美森科)推出的一款固定输出线性稳压器,属于经典78XX系列的18V输出衍生型号,专为中小功率、对稳定性要求较高的电源系统设计,兼具可靠性与成本效益,广泛适配工业控制、消费电子等多领域应用。

一、产品核心定位与品牌背景

MSKSEMI作为专注于电源管理、功率器件的半导体企业,在78XX系列线性稳压器的设计上延续了成熟架构,同时针对国内市场需求优化了参数(如宽结温范围)。L7818CV(MS)的核心定位是工业级/商业级通用18V固定稳压方案,无需外部调整元件即可实现稳定输出,简化电路设计流程,降低系统开发成本。

二、关键性能参数深度解析

L7818CV(MS)的性能参数覆盖了电源稳压的核心需求,具体解析如下:

  1. 输出特性:采用固定正极输出,输出电压精准稳定在18V(无外部调整时),单通道设计适配单电源系统,避免多通道干扰;
  2. 功率能力:最大输入工作电压35V(典型输入范围19V~35V,需满足输入电压≥输出电压+压差),持续输出电流1.5A,可满足大多数中小功率负载(如18W左右负载);
  3. 纹波与噪声控制:电源纹波抑制比(PSRR)达69dB@120Hz,能有效抑制市电频率纹波;输出噪声低至110uV(典型值),适合对噪声敏感的模拟电路(如音频、ADC/DAC);
  4. 压差与静态功耗:压差为2V@1A(即输入电压需比输出高2V以上才能稳定工作),属于线性稳压器常规压差水平;静态电流仅4.5mA,在待机或轻载时功耗控制较好;
  5. 温度适应性:结温(Tj)工作范围为0℃~+150℃,覆盖工业级高温场景(如户外设备、高温车间),但需配合合理散热设计(如TO-220封装加散热器)控制壳温在安全范围。

三、封装与应用适配性

L7818CV(MS)采用TO-220封装,这是功率器件的经典封装形式:

  • 散热性能优异:TO-220的金属散热片可直接贴装散热器,提升功率承载能力(如1.5A输出时需搭配小散热器);
  • 安装便捷:引脚布局符合标准TO-220规格,可通过螺丝固定在PCB或散热器上,适合批量生产;
  • 兼容性强:与其他品牌7818型号(如ST、TI的L7818)引脚兼容,可实现直接替换,降低系统升级成本。

四、典型应用场景

结合性能参数,L7818CV(MS)的典型应用场景包括:

  1. 工业控制设备:PLC(可编程逻辑控制器)、传感器模块、电机驱动辅助电源,宽结温范围适配工业环境的温度波动;
  2. 消费电子与通信:路由器、机顶盒、智能家电的18V辅助电源,固定输出简化设计,低噪声提升信号质量;
  3. 模拟电路前端:音频放大器、高速ADC/DAC的电源供应,110uV低噪声避免干扰模拟信号;
  4. 车载电子(部分场景):如车载显示屏、辅助控制系统的18V电源(需注意汽车级认证,本产品结温范围可覆盖部分车载高温场景)。

五、产品优势与市场价值

相比同类商业级7818产品,L7818CV(MS)的核心优势在于:

  • 宽温可靠性:结温0150℃,比多数商业级产品(0125℃)更适配工业场景;
  • 设计简便:无需外部补偿电容(常规应用下),减少BOM元件数量,降低设计难度;
  • 成本效益:TO-220封装量产成本低,适合批量应用(如工业设备批量生产);
  • 兼容性强:引脚与国际品牌7818兼容,可直接替换,降低系统维护成本。

综上,L7818CV(MS)是一款性价比突出的固定18V线性稳压器,兼顾可靠性、宽温适应性与设计简便性,是工业控制、消费电子等领域中小功率电源系统的理想选择。

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