WMSIC Electronic Components

ADI/LINEAR LT1761ES5-3.3#TRPBF LT1761ES5

ModelLT1761ES5-3.3#TRPBF
PackageTSOT-23-5
BrandADI/LINEAR
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

19 specifications

Core information

Product name
ADI(Analog Devices) / LINEAR LT1761ES5-3.3#TRPBF
Type
ADI/LINEAR
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
300mV@(100mA)
Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
20uVrms
Electronic Component
LT1761ES5-3.3#TRPBF
Electronic Component
1
Package
TSOT-23-5
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.064g
Electronic Component
1
Features
Voltage; Current;; Terminal Block
Electronic Component
BM0264889148
Operating Temperature
40℃~+125℃@(Ta)
Operating Voltage
20V
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.

LT1761ES5-3.3#TRPBF线性稳压器(LDO)产品概述

一、产品定位与核心类别

LT1761ES5-3.3#TRPBF是亚德诺半导体(ADI)旗下LINEAR系列的固定输出低压差线性稳压器(LDO),专为需要高输入电压耐受、低输出噪声、低静态功耗的中小负载供电场景设计。其核心定位是兼顾工业级环境适应性与精密模拟电路供电需求,适合紧凑型设计中的稳定电压转换,可替代同类普通LDO实现更严苛的性能要求。

二、关键电气参数解析

该器件的参数围绕“稳定、低耗、低噪”三大设计目标,核心参数及实际意义如下:

1. 输入输出基础特性

  • 输入电压范围:最高支持20V输入,可应对电源波动(如工业电网波动、电池放电后期电压下降);
  • 输出特性:固定3.3V正极输出,100mA额定负载电流,满足多数中小功率器件(MCU、传感器、射频前端)的供电需求;
  • 低压差设计:100mA负载下压差仅300mV——即使输入电压仅比输出高0.3V,仍能稳定输出,适配“输入接近输出”的紧凑电源系统。

2. 功耗与噪声表现

  • 静态电流(Iq):仅20μA,轻载或待机状态下几乎不消耗额外功率,显著延长电池供电设备(如便携医疗设备)的续航时间;
  • 输出噪声:20μVrms(远低于普通LDO的50μVrms以上水平),适合对噪声敏感的精密模拟电路(如医疗传感器、音频采集);
  • 纹波抑制:PSRR达65dB@120Hz,可有效过滤输入电源的低频纹波(如电网整流纹波),确保输出电压纯净稳定。

3. 保护机制

内置过流保护(OCP)与过热保护(OTP):

  • 过流保护:负载短路或过载时快速切断输出,防止器件烧毁;
  • 过热保护:结温过高时自动关断,温度下降后恢复工作,提升设备可靠性。

三、封装与环境适应性

1. 封装形式

采用TSOT-23-5封装,尺寸紧凑(典型尺寸2.9mm×1.6mm),可大幅节省PCB布局空间,适配便携式设备、小型化模块等对空间敏感的设计。

2. 宽温工作范围

支持**-40℃至+125℃**的工业级工作温度(Ta),可在极端环境(如高温工业现场、低温户外设备)下稳定工作,无需额外散热设计即可满足多数工业场景需求。

四、典型应用场景

LT1761ES5-3.3#TRPBF的特性使其适用于以下核心场景:

1. 工业控制与传感器模块

宽温范围适配工业现场的温度波动,低噪声输出为压力传感器、温度传感器等模拟前端提供纯净供电,3.3V稳定输出保障MCU、通信模块正常工作。

2. 便携医疗设备

低静态电流延长电池续航,20μVrms低噪声满足心电图仪、血糖仪等设备的模拟信号采集需求,小封装适配手持设备的紧凑设计。

3. 通信终端与射频模块

高输入电压耐受能力应对电源波动(如基站电源、车载电源的电压波动),100mA输出电流满足射频前端、蓝牙模块的供电需求,PSRR抑制电源纹波对射频信号的干扰。

4. 汽车电子辅助系统

宽温范围符合汽车级环境要求(部分车载场景覆盖-40℃至125℃),可用于车载显示屏背光控制、传感器供电等辅助模块,双重保护提升车载系统可靠性。

五、产品优势总结

对比同类固定输出LDO,LT1761ES5-3.3#TRPBF的核心优势在于:

  • 低噪与纹波抑制:20μVrms噪声+65dB@120Hz PSRR,适配精密模拟电路;
  • 低耗与高压耐受:20μA静态电流+20V输入电压,兼顾电池续航与电源波动;
  • 工业级可靠性:-40℃至+125℃宽温+双重保护,适应极端环境;
  • 小封装设计:TSOT-23-5封装,适配紧凑型产品设计。

该器件是工业控制、便携医疗、通信终端等领域的高性价比供电解决方案。

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