WMSIC Electronic Components

HTC LM1117S-1.5

ModelLM1117S-1.5
PackageSOT-223
BrandHTC
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 22+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HTC LM1117S-1.5
Type
HTC
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
1.2V@(1A)
Electronic Component
HTC
Electronic Component
100uV
Electronic Component
LM1117S-1.5
Electronic Component
1
Package
SOT-223
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.241g
Electronic Component
1
Electronic Component
BM0092076644
Operating Temperature
40℃~+125℃@(Tj)
Operating Voltage
12V
Output
Electronic Component
Output Voltage
1.5V
Output Current
1A

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

产品概述:LM1117S-1.5

1. 产品简介

LM1117S-1.5 是一款线性稳压器(LDO),它能够将输入电压稳定转换为度量精确的固定输出电压 1.5V。该器件设计输出电流可达 1A,适用范围广泛,适合于各类电子设备和电路中的电源管理和稳压需求。LM1117 采用 SOT-223 封装,体积小,便于在有限空间内布局,且具备较好的散热性能,是设计小型高效电源的理想选择。

2. 特性和优势

  • 固定输出电压:LM1117S-1.5 提供固定的 1.5V 输出电压,适合需要稳定电压供电的应用,如微控制器、传感器、放大器等。
  • 高输出电流能力:该稳压器能够支持高达 1A 的输出电流,适应更大功率的负载,满足多个电气元件的用电需求。
  • 低压差(LDO)设计:LM1117 的设计确保较低的压差,从而提高整体功率效率。当输入电压高于输出电压仅需1.2V的情况下,LDO 能确保稳定工作,适合多种电源环境。
  • 小型化封装:采用 SOT-223 封装,使得 LM1117S-1.5 适合于空间受限的应用,方便布线,减少布局复杂性。
  • 保护功能:集成短路保护和过热保护功能,保证了设备的安全运行,延长了使用寿命。

3. 应用场景

由于其精确的输出和良好的电源特性,LM1117S-1.5 被广泛应用于以下几个领域:

  • 消费电子:广泛用于手机、平板、可穿戴设备等电池供电的消费电子产品中,保证整个产品运行稳定。
  • 计算机周边设备:如打印机、扫描仪、外接硬盘等设备,这类设备需要稳定电源以保证可靠的工作性能。
  • 通信设备:电信基站、路由器和交换机等通信硬件,往往需要高效、稳定的电压供给。
  • 工业控制:在各种工业自动化设备,如传感器、执行器和 PLC 控制器中,LM1117S-1.5 可确保控制电路的稳定工作。

4. 功能和性能参数

  • 输入电压范围:LM1117S-1.5 的输入电压范围通常为 4.75V 至 20V,适应多种电源方案。
  • 输出电压公差:具有 ±1% 的输出电压公差,确保输出电压的准确性。
  • 工作温度范围:器件可以在 -40°C 至 +125°C 的温度范围内正常工作,使得其在严苛环境中也能稳定运行。
  • PSRR(电源抑制比):可达到高于 70dB 的 PSRR,能有效抑制输入电源波动对输出电压的影响。

5. 设计注意事项

在设计使用 LM1117S-1.5 时,开发人员需注意以下几点:

  • 输入和输出电容:适当地选择输入和输出电容,以确保稳压器的起始电流和瞬态响应,通常推荐使用多层陶瓷电容器。
  • 散热设计:尽管 SOT-223 封装有良好的热管理能力,但当负载电流接近 1A 时,仍需考虑散热片或相关的散热设计,以避免过热。
  • 布局考虑:在 PCB 布局中,尽量将输入、输出电源线和接地线设计为低电阻短路径,以降低电磁干扰,并提高电源稳定性。

6. 结论

LM1117S-1.5 是一款高效、可靠且功能强大的线性稳压器,其在各种电子产品中的应用潜力使其成为工程师们在电源设计时的一个优选方案。其优秀的电源管理性能、稳定的输出电压以及紧凑的封装设计使其在现代电子设备中发挥着不可或缺的作用,确保了设备的长期性能与可靠性。

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