WMSIC Electronic Components

ON NCP1117LPSTADT3G

ModelNCP1117LPSTADT3G
PackageSOT-223-3
BrandON
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 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
ON NCP1117LPSTADT3G
Type
ON
Unit
Electronic Component
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
1.4V@(1A)
Electronic Component
ON
Electronic Component
NCP1117LPSTADT3G
Electronic Component
1
Package
SOT-223-3
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.21g
Electronic Component
1
Electronic Component
BM0231086738
Operating Temperature
0℃~+125℃@(Ta)
Operating Voltage
18V
Output
Electronic Component
Output Voltage
1.25V~16.6V
Output Current
1.1A

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

NCP1117LPSTADT3G 可调线性稳压器(LDO)产品概述

NCP1117LPSTADT3G是安森美(ON Semiconductor)推出的一款可调式低压差线性稳压器(LDO),专为需要灵活稳压、低功耗且可靠性要求较高的电子系统设计。该器件整合了宽电压范围、小压差、低静态电流及多重保护功能,适配多种工业、消费及通信场景的电源稳压需求。

一、核心电气参数深度解析

作为可调LDO,NCP1117LPSTADT3G的关键参数精准匹配中低功率稳压场景:

  • 输入输出范围:支持最高18V输入电压,输出电压通过外部电阻分压可在1.25V~16.6V之间灵活调节,覆盖从MCU核心电压到中等功率器件的供电需求;
  • 输出能力:最大持续输出电流达1.1A,在1A负载下仅需1.4V压差(输入电压与输出电压的最小差值),适合输入输出电压差较小的应用(如电池供电系统的二次稳压);
  • 纹波抑制与静态电流:电源纹波抑制比(PSRR)达60dB@120Hz,可有效抑制电源端的低频纹波,保障敏感电路(如传感器、模拟电路)的稳定工作;静态电流仅50μA,轻载或待机状态下功耗极低,显著延长电池续航时间;
  • 输出极性:采用正极输出设计,符合绝大多数电子系统的电源连接习惯,无需额外转换电路。

二、多重保护与关键特性

NCP1117LPSTADT3G内置多重保护机制,提升系统可靠性:

  • 热关断(TSD):当芯片结温超过阈值(约160℃)时,自动关断输出,防止器件因过热损坏;温度恢复至安全范围后,自动重启输出,无需人工干预;
  • 过流保护(OCP):负载电流超过限制值(典型1.5A)时,主动限制输出电流,避免负载短路或过载导致的器件烧毁,保护后端电路;
  • 可调输出灵活性:通过外接两个分压电阻(R1、R2)即可设置输出电压(公式:Vout=1.25V×(1+R2/R1)),无需更换不同固定电压型号,降低BOM成本与设计复杂度;
  • 宽温适应性:工作环境温度范围为0℃~+125℃,可稳定工作于高温工业环境(如电机控制、户外设备),满足严苛温度场景需求。

三、封装与物理特性

该器件采用SOT-223-3封装,具备以下优势:

  • 小型化设计:表面贴装封装体积紧凑(典型尺寸:6.5mm×3.5mm×1.6mm),适合便携式设备、小型模块的空间受限场景;
  • 散热性能:SOT-223封装比传统SOT-23封装具有更大的散热面积,可支持1A左右的持续负载,无需额外散热片;
  • 引脚布局:3引脚设计(输入、输出、调整端),电路连接简单,易于PCB布局与焊接。

四、典型应用场景

NCP1117LPSTADT3G的参数特性使其适配多种场景:

  • 工业控制:PLC模块、传感器节点、电机驱动辅助稳压,应对工业现场的温度波动与纹波干扰;
  • 消费电子:便携式医疗设备、小型家电的电源模块,低静态电流延长电池使用时间;
  • 通信设备:小型基站、路由器的辅助稳压电路,为MCU、射频前端提供稳定电压;
  • 电源管理系统:作为电池供电系统的二次稳压,给低功耗器件(如物联网节点、传感器)供电。

五、总结

NCP1117LPSTADT3G凭借可调电压、小压差、低静态电流、多重保护及宽温范围等核心优势,成为中低功率稳压场景的高性价比选择。安森美的品质保障使其在工业、消费及通信领域具备广泛的应用潜力,可有效简化电源设计并提升系统可靠性。

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