WMSIC Electronic Components

ST LDL1117S15R

ModelLDL1117S15R
PackageTO-261-4
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 Electronic Component

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ST(STMicroelectronics) LDL1117S15R
Type
ST
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
600mV@(1.2A)
Electronic Component
ST(STMicroelectronics)
Electronic Component
LDL1117S15R
Electronic Component
1
Package
TO-261-4
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.232g
Electronic Component
1
Electronic Component
BM0000285170
Operating Temperature
40℃~+125℃@(Tj)
Operating Voltage
18V
Output
Electronic Component
Output Voltage
1.5V
Output Current
1.2A
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.

LDL1117S15R 产品概述

1. 产品简介

LDL1117S15R是一款高性能的线性稳压器,由意法半导体(STMicroelectronics)提供,专门针对低压和高电流的稳压应用。该组件在表面贴装(SMT)形式下提供了固定的1.5V输出电压,最大输出电流可达1.2A,适用于多种电子设备的电源管理方案。LDL1117S15R的设计考虑到了广泛的应用场景,包括工业控制、消费电子、通信设备等。

2. 基本特点

2.1 关键参数

  • 封装形式:SOT-223,TO-261-4,TO-261AA
  • 输出电压:固定值1.5V
  • 最大输出电流:1.2A
  • 输入电压范围:2.5V至18V
  • 压降:在1.2A时,最大压降为0.35V,且在最大输出电流下不超过0.6V
  • 静态电流(Iq):仅为500µA,能有效降低功耗
  • 工作温度范围:-40°C至125°C,能够在严酷环境中稳定运行

2.2 保护功能

为确保设备的安全和稳定运行,LDL1117S15R内置了多种保护机制:

  • 过流保护:防止输出电流超出规定阈值,避免损坏设备。
  • 超温保护:当芯片温度超过设定范围时,自动关闭输出,以保护自身和负载。
  • 欠压锁定(UVLO):确保输入电压低于特定值时,稳压器不会输出,以防止不稳定工作。

2.3 输出特性

LDL1117S15R提供了87dB至65dB的电源抑制比(PSRR),这意味着它能有效抑制输入电压变化对输出电压的影响,确保输出电压的稳定性。特别是在120Hz至100kHz的范围内,良好的PSRR特性显著提高了电路的整体性能。

3. 应用场景

LDL1117S15R的特性使其特别适合于以下应用:

  • 消费电子产品:如智能手机、平板电脑和音响设备,提供稳定的内部工作电压。
  • 工业设备:在传感器、控制模块和嵌入式系统中,支持多种电源需求。
  • 通信设备:如基站、路由器等,确保数据的可靠传输和设备的稳定操作。

4. 设计注意事项

在设计电路时,需要注意以下几点:

  • 输入/输出电容:根据应用需求,合理选择输入和输出电容,以优化稳定性和瞬态响应。
  • 热管理:考虑封装的热阻和通风环境,必要时增加散热措施,以确保在高负载电流下工作时不会超温。
  • 电路保护:确保在电源接入和断开时,所有连接器和组件都能正常工作,避免对稳压器造成损坏。

5. 结论

LDL1117S15R作为一款高效、稳定的线性稳压器,凭借优良的输出特性和强大的保护功能,广泛适用于各类电源管理应用。意法半导体提供的这款产品在市场上凭借其卓越的性能和可靠性,成为设计师和工程师在选择稳压器时的优先考虑。安装和集成LDL1117S15R不仅能提升电子产品的功能和可靠性,更能缩短开发时间和降低成本,从而加强市场竞争力。

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