WMSIC Electronic Components

MAXLINEAR SPX2954M3-L-3-3/TR SPX2954M3

ModelSPX2954M3-L-3-3/TR
PackageSOT-223
BrandMAXLINEAR
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
MAXLINEAR SPX2954M3-L-3-3 / TR
Type
MAXLINEAR
Unit
Electronic Component
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
310mV@(250mA)
Electronic Component
MAXLINEAR
Electronic Component
430uVrms
Electronic Component
SPX2954M3-L-3-3/TR
Electronic Component
1
Package
SOT-223
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.203g
Electronic Component
1
Features
positions
Electronic Component
BM0000515065
Operating Temperature
40℃~+125℃@(Tj)
Operating Voltage
30V
Output
Electronic Component

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

SPX2954M3-L-3-3/TR 线性稳压器产品概述

SPX2954M3-L-3-3/TR是MAXLINEAR(迈凌)推出的一款固定输出型低压差线性稳压器(LDO),专为中低功率、对电源噪声和稳定性要求较高的应用场景设计。其输出电压固定为3.3V,最大输出电流250mA,具备宽输入范围、低噪声、宽温工作等核心特性,同时集成多重保护功能与控制接口,是工业控制、汽车电子、便携式设备等领域的理想稳压方案。

一、核心身份与定位

该器件属于固定输出LDO,无需外部电阻调试即可稳定输出3.3V直流电压,简化系统设计流程。其输入电压范围覆盖至30V,输出电流满足多数中低功率负载(如MCU、传感器、射频模块等),兼顾“高效稳压”与“小型化适配”,适配对电源可靠性、环境适应性要求严格的场景。

二、关键性能参数深度解析

SPX2954M3-L-3-3/TR的性能参数围绕“稳定、高效、低噪声”三大核心优化,具体如下:

  • 输出特性:固定输出3.3V,最大输出电流250mA,输出极性为正极,单通道输出,满足多数单路稳压需求;
  • 输入与压差:工作电压最大30V(输入范围宽,可兼容多种前端电源),250mA负载下压差仅310mV——意味着输入电压仅需略高于输出(如3.61V即可稳定输出3.3V),大幅减少电源冗余,提升效率;
  • 功耗与噪声:静态电流仅170μA(低静态电流设计,适合电池供电设备延长续航),输出噪声低至430μVrms(无需额外滤波即可满足模拟电路、射频前端等对噪声敏感的场景);
  • 环境适应性:工作结温范围-40℃~+125℃,覆盖工业、汽车等 harsh 环境的温度需求,可靠性高。

三、核心功能特性

该器件集成多重实用功能,提升系统安全性与可控性:

1. 多重保护机制

  • 过热保护:当结温超过阈值时,器件自动关断输出,避免热损坏;温度下降后自动恢复,无需手动干预;
  • 过流保护:负载电流超过额定值时,器件限制输出电流,防止负载短路或过载导致的器件烧毁。

2. 控制与状态反馈

  • 使能控制:集成使能脚,可通过外部数字信号(如MCU GPIO)开启/关闭输出,实现系统级节能(未使能时静态电流进一步降低);
  • 电源好(PG)指示:输出电压稳定在额定值范围内时,PG脚输出高电平,方便系统检测电源状态(如启动顺序控制、故障报警)。

3. 低噪声与纹波抑制

430μVrms的输出噪声远低于普通LDO,可有效减少电源纹波对敏感电路(如传感器信号、射频信号)的干扰,无需额外增加滤波电容即可满足多数应用需求。

四、封装与可靠性设计

SPX2954M3-L-3-3/TR采用SOT223贴片封装,具备以下优势:

  • 小型化:封装体积紧凑,适合便携式设备、高密度PCB设计;
  • 散热性:引脚布局合理,热阻低,可有效散发布尔热效应产生的热量,适配宽温工作场景;
  • 可靠性:封装工艺成熟,抗机械应力与环境腐蚀能力强,符合工业级可靠性标准。

五、典型应用场景

该器件的性能特性使其适配多领域应用:

  • 工业控制:PLC模块、工业传感器节点、远程I/O设备(宽温+抗干扰);
  • 汽车电子:车载仪表盘、胎压监测传感器、小功率辅助电路(-40℃~+125℃满足汽车环境);
  • 便携式设备:手持检测仪器、智能穿戴设备(低静态电流延长电池续航);
  • 通信设备:射频前端模块、小型基站子系统(低噪声不影响信号质量);
  • 医疗设备:小型监护仪、血糖检测仪(稳定输出+低噪声保障信号精度)。

六、选型价值总结

对比同类LDO产品,SPX2954M3-L-3-3/TR的核心优势在于:

  • 宽输入电压(30V)与低压差的组合,适配更多前端电源;
  • 低噪声(430μVrms)满足敏感电路需求,简化设计;
  • 宽温范围+多重保护,可靠性高,适合 harsh 环境;
  • 集成使能与PG脚,提升系统可控性。

综上,该器件是一款“性能均衡、设计简单、可靠性高”的固定输出LDO,可有效解决中低功率场景下的稳压需求。

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