WMSIC Electronic Components

SGMICRO SGM2203-2.5YN3LG/TR SGM2203

ModelSGM2203-2.5YN3LG/TR
PackageSOT-23
BrandSGMICRO
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 23+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
SGMICRO SGM2203-2.5YN3LG / TR
Type
SGMICRO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
1.85V@(150mA)
Electronic Component
SGMICRO
Electronic Component
SGM2203-2.5YN3LG/TR
Electronic Component
1
Package
SOT-23
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.04g
Electronic Component
1
Electronic Component
BM0229960939
Operating Temperature
40℃~+85℃
Operating Voltage
36V
Output
Electronic Component
Output Voltage
2.5V
Output Current
150mA
Output Type
Electronic Component

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

SGM2203-2.5YN3LG/TR 产品概述

一、产品简介

SGM2203-2.5YN3LG/TR 是圣邦微(SGMICRO)推出的一款固定输出线性稳压器,提供 2.5V 正输出,单通道设计。该器件支持最高 36V 工作电压,输出电流可达 150mA,适合对噪声与供电精度有较高要求的便携与工业应用。器件封装为 SOT-23,体积小、外围简单,易于在空间受限的系统中使用。

二、主要特性

  • 固定输出:2.5V 正输出,单通道。
  • 工作电压范围(最高):36V 输入支持,便于广泛电源选择。
  • 最大输出电流:150mA。
  • 低静态电流:Iq = 4.2μA,适合低功耗、待机场景。
  • 压差(Dropout):1.85V @ 150mA,设计时需保证 Vin ≥ Vout + Vdrop。
  • PSRR:55dB @ 1kHz,良好的纹波抑制能力。
  • 内置保护:过流保护(OCP)与过热保护(thermal shutdown)。
  • 工作温度:-40℃ ~ +85℃。

三、典型电性能要点

SGM2203 在 1kHz 时具有约 55dB 的电源纹波抑制能力,能有效降低输入纹波对敏感模拟电路的干扰。压差为 1.85V(在满载 150mA 时),因此当输出 2.5V 并需满载工作时,最低输入电压需 ≈4.35V。静态电流仅 4.2μA,有利于延长电池供电系统的待机时间。

四、封装与引脚

该型号采用 SOT-23 小封装,适合空间受限的应用。典型 SOT-23 引脚功能包括 输入(VIN)、地(GND)和输出(VOUT)。引脚排列与封装详情请参考厂家数据手册以获得准确焊盘与热阻信息。

五、应用场景

  • 电池供电与便携设备(传感器节点、手持设备)
  • 工业控制与仪器仪表的局部稳压电源
  • 模拟前端、ADC/DAC 参考或供电(得益于较高 PSRR)
  • 通讯模块与消费类电子的低压供电模块

六、使用与设计建议

  • 电容要求:推荐在输入端并联旁路电容(陶瓷)≥1μF,输出端建议使用 1μF ~ 10μF 低 ESR 陶瓷电容以确保稳压器稳定与瞬态响应。具体容值与 ESR 取决于 PCB 布局与负载特性,请以实际评估为准。
  • 散热与压差考虑:功耗 P = (Vin - Vout) × Iout。例如 Vin=12V、Vout=2.5V、Iout=150mA 时,耗散约 1.425W,SOT-23 封装散热能力有限,长期工作可能触发热关断,故建议尽量降低输入与输出的压差或采用降压前级以减少热量。
  • 布局建议:输入电容与输出电容尽量靠近器件引脚,地线尽量短而宽,避免长回流路径。若有热设计需求,可在 PCB 下方增加铜箔散热区域并使用过孔导热。

七、可靠性与保护

器件内置过流保护与过热保护,提高系统可靠性。当发生短路或过载时,OCP 会限制输出电流以防器件损坏;若内部结温过高,热关断会切断输出,待温度恢复后自动重启。仍需在系统设计中考虑故障工况与保护策略(如外部限流、保险丝等)。

八、选型建议

SGM2203-2.5YN3LG/TR 适合对静态电流和噪声抑制有要求且负载电流不大(≤150mA)的应用场景。若系统输入电压常显著高于输出且负载电流接近最大值,应评估热耗散并考虑采用前端开关降压转换器或更大散热能力的封装。购买与最终布局前,请参照官方数据手册获取完整引脚、典型特性曲线及推荐 PCB 焊盘尺寸。

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