WMSIC Electronic Components

MICROCHIP MIC5317-3.3YM5-TR MIC5317

ModelMIC5317-3.3YM5-TR
PackageSOT-23-5
BrandMICROCHIP
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICROCHIP MIC5317-3.3YM5-TR
Type
MICROCHIP
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
310mV@(150mA)
Electronic Component
MICROCHIP
Electronic Component
200uVrms
Electronic Component
MIC5317-3.3YM5-TR
Electronic Component
1
Package
SOT-23-5
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.16g
Electronic Component
1
Electronic Component
BM0264935539
Operating Temperature
40℃~+125℃@(Tj)
Operating Voltage
6V
Output
Electronic Component
Output Voltage
3.3V
Output Current
150mA

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

MIC5317-3.3YM5-TR 线性稳压器产品概述

一、产品定位与核心身份

MIC5317-3.3YM5-TR是美国微芯(Microchip)推出的固定输出型线性稳压器,属于电源管理集成电路(PMIC)范畴。其核心设计针对小电流、低噪声、宽温度范围的应用需求,采用超小型SOT-23-5封装,是便携式设备、工业控制、传感器信号调理等场景的高效电源解决方案。

二、关键参数深度解析

该稳压器的参数直接指向应用价值,核心指标如下:

  1. 输出基础特性:固定输出3.3V,最大负载电流150mA,覆盖多数低功耗MCU、传感器、射频模块的供电需求;
  2. 效率与纹波控制:
    • 压差仅310mV(150mA负载下),输入电压仅需比输出高0.31V即可稳定工作,提升电源利用效率;
    • 电源纹波抑制比(PSRR)达80dB@1kHz,可有效抑制输入电源的高频纹波,为敏感电路提供纯净供电;
  3. 低功耗设计:静态电流(Iq)仅29μA,工作时自身功耗极低,适合电池供电设备(如智能手环、蓝牙设备)延长续航;
  4. 低噪声输出:输出噪声200μVrms,远低于普通线性稳压器,满足高精度模拟电路(如压力/温度传感器调理)的噪声要求;
  5. 宽温适应性:工作结温(Tj)覆盖-40℃至+125℃,符合工业级、汽车级(部分场景)的温度要求,适应恶劣环境。

三、封装与引脚功能说明

产品采用SOT-23-5超小型表面贴装封装,引脚定义清晰(参考官方 datasheet):

  • 引脚1:EN(使能引脚,高电平有效)—— 外部MCU/开关可控制稳压器开启/关闭,关闭时进入低功耗模式;
  • 引脚2:GND(接地引脚)—— 必须可靠接地,保证电路稳定;
  • 引脚3:VIN(输入电压引脚)—— 输入范围≥3.61V(3.3V+0.31V压差)、≤6V;
  • 引脚4:VOUT(输出电压引脚)—— 输出3.3V稳定电压,需外接输出电容;
  • 引脚5:NC(无连接引脚)—— 无需外接元件,避免悬空短路。

四、核心保护功能

内置多重保护机制提升可靠性:

  1. 过流保护(OCP):负载电流超150mA时自动限流,避免稳压器/负载损坏;
  2. 过热保护(OTP):结温超150℃时自动关断输出,温度回落至安全范围后恢复;
  3. 使能控制:通过EN引脚实现外部开关,无需切断输入电源即可关闭输出,进一步降低待机功耗。

五、典型应用场景

结合参数特性,适用于以下场景:

  1. 便携式电子设备:智能手环、蓝牙耳机、智能手表等,利用低静态电流延长电池续航;
  2. 传感器信号调理:压力、温度、加速度传感器等,依赖低噪声输出保证信号精度;
  3. 工业控制模块:PLC辅助电源、远程IO模块,适应-40℃~+125℃宽温环境;
  4. 低功耗MCU供电:STM32L、PIC16LF等系列MCU,满足供电需求且不额外增加功耗;
  5. 汽车电子小模块:车载USB辅助电源、仪表盘小显示模块(需确认汽车级认证批次)。

六、设计注意事项

为保证稳定工作,需注意:

  1. 电容配置:
    • 输入:VIN与GND间并联0.1μF陶瓷电容(靠近引脚),抑制输入纹波;
    • 输出:VOUT与GND间并联1μF陶瓷电容(靠近引脚),提升输出稳定性;
  2. 使能引脚:不可悬空,需接VIN(常开启)或外部控制,避免误触发;
  3. 散热设计:功耗=(VIN-VOUT)×IOUT(如6V→3.3V、150mA时约0.4W),需加宽PCB上VIN/VOUT引脚铜箔,或增加散热焊盘;
  4. 输入电压范围:严格控制在3.61V~6V,超出可能导致损坏或输出不稳定。

综上,MIC5317-3.3YM5-TR以小封装、低噪声、低功耗、宽温、多重保护为核心优势,是低功耗电子系统的高性价比电源选择。

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