WMSIC Electronic Components

Siproin SSP9312

ModelSSP9312
PackageSOT-23-6
BrandSIPROIN
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Siproin SSP9312
Type
SIPROIN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SIPROIN
Electronic Component
SSP9312
Electronic Component
1
Package
SOT-23-6
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.048g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0265584578
Operating Temperature
40℃~+85℃
Operating Voltage
3.5V~16V
Switching Frequency
500kHz
Electronic Component
Electronic Component
Output Current
2A

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

SSP9312 降压型DC-DC转换器产品概述

上海矽朋(Siproin)推出的SSP9312是一款同步降压型DC-DC转换器,针对中小功率、小体积、低功耗场景优化设计,具备宽输入电压范围、高效能转换、灵活输出调节等核心特性,可广泛应用于便携设备、工业控制、消费电子等领域。

一、核心拓扑与功能定位

SSP9312采用降压式(Buck)拓扑结构,是目前中小功率直流电压转换的主流方案——通过内置功率开关管的周期性导通/关断,配合电感、电容的储能滤波,将较高输入电压转换为稳定的低电压输出。

其关键功能特性包括:

  • 内置同步整流MOSFET:替代传统异步Buck的外置续流二极管,大幅降低续流损耗,提升转换效率;
  • 输出电压可调:支持用户根据需求灵活设置输出电压(无需固定输出),适配多种负载芯片的供电需求;
  • 全内置开关管:无需外置功率器件,简化外围电路设计,缩小PCB占用面积。

二、关键电气参数解析

SSP9312的核心参数精准匹配了多数应用场景的供电需求,具体如下:

1. 宽输入电压范围:3.5V ~ 16V

覆盖常见电源类型:

  • 单节/两节锂电池(3.7V/7.4V);
  • 12V适配器、车载12V电源(部分低功耗车载场景);
  • 5V~9V USB PD电源等。
    无需额外升压/降压预处理,直接适配多种输入电源。

2. 最大输出电流:2A

满足中小功率负载需求,例如:

  • 蓝牙音箱、智能手表的主芯片供电;
  • 小型工业传感器、MCU模块的核心供电;
  • 移动电源的降压输出(给手机充电时的辅助供电)。

3. 开关频率:500kHz

这一频率是效率与体积的平衡选择:

  • 高于低频方案(如100kHz以下):可采用更小的电感(如10μH左右)和电容,缩小外围元件体积;
  • 低于高频方案(如1MHz以上):EMI干扰更低,无需复杂的EMC滤波设计,易通过认证。

4. 低静态电流:600μA

待机状态下仅消耗600μA电流,显著提升设备待机续航:

  • 例如移动电源待机时,可减少自身耗电,延长待机时间;
  • 便携设备(如智能手环)在低功耗模式下,降低整体待机功耗。

5. 宽工作温度:-40℃ ~ +85℃

覆盖工业级环境温度范围,可适应户外低温、室内高温等场景,例如:

  • 户外传感器节点(冬季低温-20℃以下);
  • 工业控制柜内(夏季高温+60℃以上);
  • 车载小设备(低温启动、高温暴晒)。

三、封装与可靠性设计

SSP9312采用SOT-23-6封装,尺寸仅约2.9mm×2.5mm×1.1mm,是典型的小体积封装,优势显著:

  • 适合空间紧张的产品:如智能耳机、微型投影仪、小型医疗设备等;
  • 简化PCB布局:6引脚设计,外围仅需电感、电容等少量元件,无需复杂布线。

此外,产品内置基础防护功能(过流、过热保护),提升电路可靠性,避免负载异常时损坏器件。

四、典型应用场景

SSP9312的特性使其适配多领域应用,典型场景包括:

1. 便携电子设备

  • 移动电源:升压模块输出(如5V)降压至3.3V/2.5V,给MCU、显示模块供电;
  • 蓝牙音箱/耳机:锂电池输入(3.7V)转换为5V(给功放)或3.3V(给蓝牙芯片);
  • 智能穿戴:智能手表、手环的核心供电(低功耗+小体积)。

2. 工业控制与物联网

  • 小型传感器节点:12V输入转换为3.3V,给温湿度、压力传感器及MCU供电;
  • 工业PLC辅助电源:12V/24V输入降压至5V/3.3V,给通信模块供电;
  • 物联网网关:低功耗待机+宽电压输入,适配不同电源环境。

3. 消费电子

  • 路由器/机顶盒:12V输入转换为5V/3.3V,给主芯片、内存供电;
  • 智能家居设备:智能插座、灯光控制器的核心供电(低静态电流提升待机节能)。

五、设计优势总结

SSP9312针对中小功率场景的核心痛点优化,具备以下设计优势:

  1. 高效能:同步整流+500kHz频率,典型负载下转换效率可达90%以上,减少电源损耗;
  2. 低功耗:600μA静态电流,适配待机需求高的设备;
  3. 小体积:SOT-23-6封装+内置开关管,缩小PCB面积;
  4. 宽适配:3.5V~16V输入+可调输出,覆盖多电源与负载需求;
  5. 高可靠:工业级温度范围+内置防护,适应恶劣环境。

综上,SSP9312是一款高性价比的同步降压DC-DC转换器,适合对体积、功耗、效率有要求的中小功率供电场景。

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