WMSIC Electronic Components

Siproin LM317L

ModelLM317L
PackageSOT-89-3
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Siproin LM317L
Type
SIPROIN
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SIPROIN
Electronic Component
LM317L
Electronic Component
1
Package
SOT-89-3
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.165g
Electronic Component
1
Electronic Component
BM0219652670
Operating Temperature
55℃~+150℃
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.

LM317L 产品概述

一、产品简介

LM317L是一款广泛应用的线性稳压器(LDO),该器件的输入电压范围广泛,从1.25V到40V,能够输出可调的直流电压,适用于多种电子设计。其输出电流最高可达1.5A,能够支持许多在电源需求上有一定功率要求的应用。LM317L主要以其高稳定性、低噪声和简单易用而受到设计工程师的青睐,具有灵活的调节能力。其封装形式为SOT-89,是一种小型化封装,适合于空间受限的电路设计。

二、技术规格

  • 输入电压范围:1.25V到40V
  • 输出电压范围:通过外部电阻调整,范围在1.7V至37V
  • 输出电流:最大1.5A
  • 封装类型:SOT-89
  • 温度范围:工作温度范围为-40℃至125℃
  • 功耗:低功耗设计,有助于延长设备的电池寿命

三、主要特性

  1. 可调输出:LM317L的输出电压可以根据应用需求通过外部电阻进行调节,这使得其适用性广泛,可以为多种类型的负载提供合适的电压。

  2. 高稳定性:该器件具有优异的负载调节和线路调节特性,能够在各种输入电压和负载变化的条件下,提供稳定可靠的输出。

  3. 快速响应:LM317L能够快速响应负载变化,确保输出电压的快速恢复,对于动态负载源而言,能够确保设备正常运行。

  4. 低噪声:与开关稳压器相比,LM317L的噪声较低,适用于对噪声敏感的应用,如音频设备或精密仪器。

  5. 热保护功能:内置自动关断功能,可以在过载或过温的情况下,保护器件不受损坏,确保系统的安全性和稳定性。

四、应用领域

LM317L凭借其优异的性能被广泛应用于各种设备和电路中,包括:

  • 便携式电子设备:由于其小型化设计及低功耗特性,LM317L非常适合用于电池供电的设备,如便携式音频播放器、手机充电器等。

  • 电源管理系统:可作为电源管理解决方案中的一部分,为多个不同电压要求的电路提供稳定的电压输出。

  • 工业设备:在工业控制和仪器类设备中,LM317L能够为敏感的电路提供所需的稳定电源,确保设备的正常运行。

  • 制药和医疗设备:在医疗器械中使用时,LM317L的低噪声特性尤为重要,可以为医疗仪器提供干净的电源,保证测量的准确性。

  • LED驱动器:可以用作LED驱动电路的电源解决方案,能够调节输出电压以适应不同类型的LED灯。

五、设计考虑

在使用LM317L时,设计工程师需要考虑器件的输入输出电压差,以及热效应以防止器件过热。在选择外部电阻时,需要确保其阻值可以根据电压输出需求精确调节,以便达到理想的效果。同时,设计时还应注意稳压器的输入和输出的旁路电容,以进一步提高电源的稳定性和抗干扰能力。

结论

LM317L作为一款稳定可靠的可调线性稳压器,凭借其广泛的输入电压范围、可调输出、低噪声级别及高稳定性的特点,成为了电子设计中不可或缺的组件之一。无论是在便携式设备还是在复杂的电源管理系统中,LM317L都能够提供极为重要的电源解决方案,为各类电子产品的设计和应用提供支持。

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