WMSIC Electronic Components

ST L7812ABV

ST L7812ABV
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Product image

ModelL7812ABV
PackageTO-220
BrandST
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+

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Technical data

Product details

20 specifications

Core information

Product name
ST(STMicroelectronics) L7812ABV
Type
ST
Unit
Electronic Component
Minimum package
1000 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
2V@(1A)
Electronic Component
ST(STMicroelectronics)
Electronic Component
L7812ABV
Electronic Component
1
Package
TO-220
Electronic Component
Linear Regulator(LDO)
Electronic Component
2.74g
Electronic Component
1
Electronic Component
BM0000287976
Operating Temperature
40℃~+125℃@(Tj)
Operating Voltage
27V
Output
Electronic Component
Output Voltage
12V
Output Current
1A

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

L7812ABV 产品概述

简介

L7812ABV是一款由意法半导体（STMicroelectronics）制造的线性稳压器，属于固定输出型的低压差稳压器（LDO）系列。该器件尤其适用于需要将输入电压降低至稳定输出电压的应用情境，包括但不限于电源管理、消费电子、通信设备和工业控制系统等。其主要技术特点是输出电压稳定在12V，最大输入电压为35V，输出电流可达1.5A，适合多种电子设计方案。

关键参数

  1. 输出电压：L7812ABV的输出电压被固定为12V，满足多种需要12V电源的设备和电路的要求。

  2. 输入电压范围：该稳压器的最大输入电压为35V，确保在多种电源条件下均能稳定工作。

  3. 输出电流：L7812ABV的最大输出电流能力为1.5A，适合供应多种负载。

  4. 压降能力：在1A的输出条件下，其最大压降为2V，这使得其在高频率和低温度条件下拥有良好的性能表现。

  5. 静态电流：该稳压器的工作电源电流最大值为6mA，显示出较低的功耗特性。

  6. 纹波抑制率（PSRR）：具备60dB的PSRR（在120Hz），能够有效抑制输入电源纹波，保障输出电压的稳定性。

  7. 保护功能：集成了超温及短路保护功能，这确保了其在不良工况下依然能维持稳定的输出，防止组件损坏。

  8. 工作温度范围：其工作温度范围广泛，为-40°C至125°C，适合在多种环境条件下应用。

  9. 封装类型：采用TO-220封装，便于热管理和散热，适合通孔安装，方便集成于各类电子电路板中。

应用领域

L7812ABV稳压器广泛应用于各类电子电路，特别是在对电源稳定性和可靠性要求较高的场合。典型的应用包括：

  • 电源供应单元：用于将高电压电源转换为稳定的低压电源供给敏感电子设备。

  • 工业控制系统：在复杂的工业环境中，为逻辑电路、传感器和执行器提供稳定的工作电压。

  • 消费电子：比如电视机、音响设备以及计算机周边产品等，提高其系统的稳定性和可靠性。

  • 通信设备：在无线和有线通信设备中提供稳定的电源，确保信号的稳定传输。

设计考量

在使用L7812ABV时，设计师界需充分考虑其输入电压和输出电流要求。输入电压不仅要低于35V，还需高于输出电压，以满足压降要求。此外，考虑到电源加装可能导致的纹波，设计中应设置适当的滤波电容，尽量降低输入电压的纹波对输出的影响。

总结

L7812ABV线性稳压器是一个优质的电源管理方案，凭借其固定的输出电压、较高的输出电流以及多重保护功能，成为各种应用场合中的理想选择。随着电子设备对电源要求的不断提升，L7812ABV在稳定性、可靠性，以及适用性方面具有广泛的市场前景。其高性价比和易于集成的特性将使其在未来的电子设计中依旧占据重要地位。

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