WMSIC Electronic Components

UMW AMS1117-3.3 AMS1117

ModelAMS1117-3.3
PackageSOT-223
BrandUMW
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
UMW AMS1117-3.3
Type
UMW
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
1.3V@(1A)
Electronic Component
UMW
Electronic Component
0.003%Vout
Electronic Component
AMS1117-3.3
Electronic Component
1
Package
SOT-223
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.282g
Electronic Component
1
Features
Electronic Component
Electronic Component
BM69413508
Operating Temperature
40℃~+125℃
Operating Voltage
12V
Output
Electronic Component
Output Voltage
3.3V

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

AMS1117-3.3 产品概述

一、产品简介

AMS1117-3.3 是一款广泛应用于电子设备中的线性稳压器(LDO),由友台半导体(UMW)制造。它能够提供一个稳定的3.3V输出电压,具备1A的输出电流能力。这款稳压器采用SOT-223封装,既小巧又易于集成,特别适合体积有限的应用设计,为设计工程师提供了灵活性。

二、功能特点

  1. 输出电压稳定:AMS1117-3.3 提供固定的3.3V输出电压,可以有效降低输入电压波动带来的影响,确保后端电路正常工作。

  2. 高输出电流能力:该器件能够提供高达1A的稳定输出电流,适合需要较大电流负载的应用,增强了其在各类设备中的适用性。

  3. 低压差特性:AMS1117具有低压差(Dropout Voltage)特性,通常在负载电流为1A时,典型值约为1.2V。这意味着在输入电压略高于3.3V时,该稳压器仍能正常工作,优化了电源管理,提高了效率。

  4. 保护功能:AMS1117-3.3 内置过热保护及过流保护功能,能够在极端条件下保护电路正常运行,增加系统的可靠性与稳定性。

  5. 宽工作温度范围:该器件能够在-40℃至+125℃的温度范围内工作,适合多种环境条件下的应用,增强了适应性。

  6. 简易使用:AMS1117-3.3 设计简单,通常只需要一两个外部电容器来实现稳定的输出,无需复杂的外围电路,提高了设计的便利性。

三、应用领域

AMS1117-3.3 由于其优秀的性能和可靠性,适用于多种应用场景,包括但不限于:

  1. 消费电子:如智能手机、平板电脑、笔记本电脑等,广泛用于提供稳定的电源给处理器、传感器和其他数字电路。

  2. 嵌入式系统:在各种嵌入式设备中,AMS1117-3.3 可用于为微控制器、FPGA、DSP等器件提供固定电压。

  3. 通信设备:在无线通信设备和网络设备中,AMS1117-3.3 常用于提供供电,确保信号处理的稳定性。

  4. 工业控制:在工业自动化和控制系统中,AMS1117-3.3 被用作电源调节,确保设备在变化的输入电压下依然能够稳定运行。

  5. 医用设备:在需要高度可靠和稳定输出的医疗设备中,AMS1117-3.3 可以用来为传感器和数据采集系统提供电源。

四、设计建议

在设计中使用 AMS1117-3.3 的过程中,推荐注意以下几点:

  1. 输入电压:确保输入电压高于3.3V + VDROPOUT,以满足LDO的最低输入要求。

  2. 电容选择:在输入端和输出端选择适当的电容,以提供必要的稳定性和良好的瞬态响应。通常,输入电容值为10μF,输出电容值为22μF,并且需注意电容的ESR特性。

  3. 散热管理:虽然AMS1117拥有内置的过热保护,但在大负载条件下,适当的散热设计仍然至关重要。

  4. PCB布局:尽量缩短输入和输出电容与AMS1117之间的连接线,以降低电感,提高稳定性。

五、总结

AMS1117-3.3 是一款高性能、易于使用的线性稳压器,其固定输出电压、较高的输出电流和低压差特性,使其成为众多电子应用的理想选择。通过合理的设计与布局,AMS1117-3.3 可以在多种环境下提供稳定、可靠的电源输出。无论是在消费电子、嵌入式系统还是工业控制中,它都能展现出卓越的性能与稳定性,为开发者和工程师提供支持。

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