WMSIC Electronic Components

Siproin LM317

ModelLM317
PackageSOT-223
BrandSIPROIN
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
Siproin LM317
Type
SIPROIN
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SIPROIN
Electronic Component
LM317
Electronic Component
1
Package
SOT-223
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.249g
Electronic Component
1
Electronic Component
BM0259511592
Operating Temperature
55℃~+150℃@(Tj)
Operating Voltage
40V
Output
Electronic Component
Output Voltage
1.25V~37V
Output Current
1.5A
Output Type
Electronic Component
Output Channel Count
1

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

LM317 产品概述

1. 引言

LM317 是一种常用的可调线性稳压器,其特点是能够在宽广的输入电压范围内输出稳定的电压。该器件被广泛应用于各种电子设备和电路中,能够为敏感元件提供干净、稳定的电源。本文将详细介绍 LM317 的关键特性、规格、应用场景及其优势。

2. 基本规格

  1. 类型:线性稳压器(LDO)
  2. 可调输出电压:1.7V 至 37V
  3. 输入电压范围:最高可达 40V
  4. 最大输出电流:1.5A
  5. 封装:SOT-223
  6. 品牌:Siproin(上海矽朋)

3. 特性与参数

LM317 的主要特性包括:

  • 高电压输出:LM317 可以处理高达 40V 的输入电压,使其适合于各种电源应用。该宽广的电压范围确保了其在不同环境下的适用性。
  • 可调输出:用户可以根据需要调整输出电压,输出范围在 1.7V 至 37V 之间,是为多种负载提供不同要求的理想选择。
  • 高输出电流:最大 1.5A 的输出电流支持电源供应满足大多数中小功率设备的需求,能够驱动多个负载而不导致过热或过载。
  • 简单的应用电路:LM317 的接线非常简单,通常只需几个外部电阻器即可设置所需的输出电压,从而简化设计过程。
  • 保护特性:LM317 自带过流保护和热关断功能,能够在异常条件下自动关闭输出,保护电路设备的安全。

4. 应用场景

LM317 的灵活性和可靠性使其在许多领域得到了广泛应用,包括:

  • 电源稳压器:在各类电源模块中,LM317 常用于提供稳定的输出电压,确保供电设备(如微控制器、传感器等)正常运作。
  • 实验室电源:由于其可调节特性,LM317 常被用作实验室电源,为科研和工程实验提供稳定电压的测试平台。
  • 充电器:LM317 可用于设计简单的充电器,支持对电池的不同电压和电流需求进行充电。
  • LED 驱动电路:在LED照明和显示应用中,LM317 可以严格控制电流,确保LED在安全范围内工作,提高其使用寿命。
  • 音频设备:在音频放大器和相关设备中,LM317 可用作电源管理模块,确保音频信号不会因电源波动而变得失真。

5. 优势

LM317 在当前众多线性稳压器中具有以下优势:

  • 经济性:作为一种成熟的技术,LM317 的成本相对较低,使得其在大规模应用时具备经济优势。
  • 广泛的兼容性:其适用的输入和输出范围使得LM317 可以与多种电子元器件兼容,简化了设计过程。
  • 易于获取:LM317 是市场上最流行的线性稳压器之一,用户可以轻松找到丰富的资源和技术支持。
  • 优良的电源噪声抑制:LM317 能够有效地降低输出电源中的噪声,使其适合用于要求高稳定极低噪声的应用领域。

6. 总结

LM317 是一款功能强大的可调线性稳压器,适用于各种电源管理应用。其宽广的输入输出范围、高输出电流以及简单的电路设计使其成为设计师的首选。随着电子产品对电源稳定性和低噪声要求的提高,LM317 将继续在市场上发挥重要作用。无论是在消费电子、工业设备或是科研领域,LM317 都是一个值得信赖的电源解决方案。

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