WMSIC Electronic Components

SGMICRO SGM2203-3.6YN3LG/TR SGM2203

ModelSGM2203-3.6YN3LG/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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
SGMICRO SGM2203-3.6YN3LG / TR
Type
SGMICRO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
2.4V@(150mA)
Electronic Component
SGMICRO
Electronic Component
SGM2203-3.6YN3LG/TR
Electronic Component
1
Package
SOT-23
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.039g
Electronic Component
1
Electronic Component
BM0230826946
Operating Temperature
40℃~+85℃@(Ta)
Operating Voltage
36V
Output
Electronic Component
Output Voltage
3.6V
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.

SGM2203-3.6YN3LG/TR 产品概述

一 概述

SGM2203-3.6YN3LG/TR 是圣邦微(SGMICRO)推出的一款低静态电流、固定输出型线性稳压器,输出电压为 3.6V,最大输出电流可达 150mA。器件具备较高的输入电压耐受能力(最高可达 36V),同时集成过流保护与过热保护,适合在对噪声和纹波敏感、且要求低待机功耗的应用中作为后端线性稳压源。器件以 SOT-23 小封装提供,便于空间受限的 PCB 布局与量产封装。

二 主要特性

  • 固定输出:3.6V(正极输出)
  • 最大输入电压:36V
  • 最大输出电流:150mA
  • 压降(Dropout):2.4V(在 150mA 条件下)
  • 静态电流(Iq):4.2µA(低静态功耗,适合电池待机)
  • 电源纹波抑制比(PSRR):55dB @ 1kHz(良好的纹波抑制能力)
  • 保护功能:过流保护(OCP)、过热保护(OTP)
  • 工作温度范围:-40°C ~ +85°C(Ta)
  • 封装形式:SOT-23,单通道输出

三 电气性能与关键参数说明

  • 输出能力:器件在典型条件下可稳定提供 3.6V/150mA 的输出,但需要保证输入电压高于 VOUT + VDROP(在满载时为 3.6V + 2.4V = 6.0V)。在低压差或高负载场景下需注意器件的压差限制。
  • PSRR:在 1kHz 频率处约为 55dB,可有效抑制电源纹波,适合对噪声敏感的模拟或射频前端电路。
  • 低静态电流:4.2µA 的静态电流使其适合长待机或间歇工作模式的系统,能降低休眠功耗。
  • 保护机制:内置过流与过热保护,提升在短路或过载条件下系统的可靠性。
  • 功耗与热限制:线性稳压器的功耗等于 (Vin − Vout) × Iout。若输入电压较高且负载接近 150mA,器件功耗将显著增加,对 SOT-23 小封装的热散能力是个挑战(详见“热设计”)。

示例:当 Vin = 12V、Vout = 3.6V、Iout = 150mA 时,耗散功率 P = (12 − 3.6) × 0.15 = 1.26W;若 Vin = 36V,P 将接近 4.86W,远超小封装可安全散热范围,因此在高输入压差场合应采取降压或外部散热措施。

四 典型应用

  • 工业控制与自动化电源(高压输入、需稳压的低压逻辑或模拟供电)
  • 车载或工业传感器模块(在满足热设计的前提下)
  • 仪表放大器、模数转换器前端供电(利用良好 PSRR 降低干扰)
  • 低功耗便携设备的次级稳压(待机电流要求低)
  • 其他需要固定 3.6V 可靠电源的小型电子模块

五 设计与使用注意事项

  • 最低输入要求:为了保证在最大负载下的输出调节,应确保 Vin ≥ Vout + Vdrop(在满载时约 6.0V)。若实际系统输入无法满足该差值,考虑使用带低压差的 LDO 或前端降压转换器。
  • 输入/输出旁路:建议在稳压器输入端和输出端各放置低 ESR 陶瓷旁路电容,以改善瞬态响应和降低输出纹波。常见做法为输入端放置 0.1µF~1µF 陶瓷,输出端放置 1µF~10µF(具体取值请参照器件完整数据手册以保证稳定性)。
  • 散热与功耗管理:在高 Vin 或高 Iout 场景,应计算耗散功率并评估 PCB 散热路径。若功耗过高,建议采用前级开关降压器(降至接近 Vout 的中间电压)再由 SGM2203 进行精调或使用功率更强的封装。
  • 保护电路:虽然器件内部包含 OCP 和 OTP,但在设计时仍建议为输入端添加合适的熔断器、电视抑制元件(TVS)或限流电路以增强系统鲁棒性,尤其是汽车或工业环境。

六 封装与订购信息

  • 封装:SOT-23 小型封装,适合表贴安装与自动化生产
  • 型号:SGM2203-3.6YN3LG/TR(标准管带包装)
  • 备注:具体引脚排列、封装尺寸、推荐 PCB 布局和电容参数,请以官方数据手册为准,采购与样片请联系代理或圣邦微授权渠道。

总结:SGM2203-3.6YN3LG/TR 以其高输入耐受、电源纹波抑制和极低静态电流等特点,适合需要固定 3.6V 输出且对待机功耗有严格要求的应用场合。设计时需重视输入与输出差值导致的功耗与散热问题,并按数据手册的建议配置旁路与保护元件,以确保稳压器工作在安全可靠的条件下。

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