WMSIC Electronic Components

Siproin SSP9323

ModelSSP9323
PackageESOP-8
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 SSP9323
Type
SIPROIN
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SIPROIN
Electronic Component
SSP9323
Electronic Component
1
Package
ESOP-8
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.168g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0265617018
Operating Temperature
40℃~+85℃
Operating Voltage
4.5V~28V
Switching Frequency
500kHz
Electronic Component
Electronic Component
Output Current
3A

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

SSP9323 同步降压DC-DC转换器产品概述

SSP9323是上海矽朋(Siproin)推出的一款内置同步整流的降压型DC-DC转换器,专为中功率、高效率、宽输入范围的电源设计需求打造,兼具小体积、低待机功耗与宽温度适应性,适合工业控制、消费电子、车载辅助等多场景应用。

一、产品定位与核心特性

SSP9323定位于3A级中功率降压方案,核心设计围绕“简化外部电路+提升效率+适配多元场景”展开,核心特性可总结为:

  • 宽输入电压:4.5V~28V,兼容常见电池与适配器
  • 大输出电流:3A连续输出,满足多数中功率负载需求
  • 同步整流设计:内置续流MOSFET,替代传统二极管,效率提升显著
  • 内置开关管:无需外接功率MOS,减少元件数量与PCB面积
  • 可调输出电压:灵活适配不同负载的电压需求
  • 工业级温度范围:-40℃~+85℃,适应高低温环境
  • 低静态电流:300μA,优化电池供电设备的待机续航

二、关键参数与性能优势

1. 输入输出范围覆盖广

输入电压4.5V~28V,覆盖3节锂电池(典型9V)、12V家用适配器、24V工业电源、24V铅酸电池等主流供电来源,无需额外升压/降压前置电路,直接为负载供电;输出电流3A连续输出,支持3.5A峰值电流,可驱动MCU、无线模块、传感器阵列等中功率负载。

2. 开关频率平衡效率与体积

固定开关频率500kHz,处于“高频缩小磁性元件体积”与“低频降低开关损耗”的平衡区间:一方面,500kHz可选用小体积电感(如10μH左右)与陶瓷电容,适合空间紧凑的PCB设计;另一方面,频率未过高导致开关损耗剧增,保证整体效率。

3. 低静态电流优化待机功耗

静态电流仅300μA,远低于部分异步整流方案(通常>1mA),尤其适合电池供电的便携式设备(如手持终端、移动电源):待机时设备耗电极低,可延长单次充电续航时间,无需频繁更换电池。

三、同步整流与拓扑结构设计

SSP9323采用降压式(Buck)拓扑+同步整流,相比传统异步Buck方案(续流二极管),核心优势在于:

  • 续流阶段用内置MOSFET代替二极管,导通压降从0.6V以上降至0.1V以内,重载下(如2A3A)效率提升5%10%;
  • 轻载下(如<500mA),同步整流可通过自适应控制优化开关时序,进一步降低损耗,效率仍保持在85%以上;
  • 内置主开关管与续流MOSFET,外部仅需电感、电容、分压电阻,元件数量少,PCB布线简单,降低设计难度与成本。

四、封装与应用场景

SSP9323采用ESOP-8封装,尺寸约5.0mm×6.0mm×1.5mm,属于小体积表面贴装封装,适合空间受限的应用:

  • 工业控制:PLC模块辅助电源、传感器节点、小型电机驱动电源;
  • 消费电子:手持终端(如POS机)、智能家居设备(如智能摄像头)、移动电源;
  • 车载辅助:行车记录仪、胎压监测模块、车载USB充电口电源;
  • 通信设备:小型无线AP、IoT网关的辅助供电。

五、温度适应性与可靠性

工作温度范围-40℃~+85℃,符合工业级温度标准,可适应户外环境(如低温-20℃、高温60℃)、工业现场(如设备机箱内高温)等场景,不会因温度变化导致输出电压波动或效率下降;同时,内置过流(3.5A阈值)、过温(150℃阈值)保护功能,提升产品可靠性,避免负载异常损坏电源模块。

六、输出可调性与灵活性

输出电压为可调式,通过外部两个分压电阻(Rtop与Rbottom)设置:Vout = 0.8V × (1 + Rtop/Rbottom),可调范围约0.8V~24V(受限于输入电压:Vout ≤ Vin - 1V),可灵活适配不同负载的电压需求(如1.8V给MCU、3.3V给传感器、5V给USB设备),无需更换电源模块即可调整输出,降低库存成本。

综上,SSP9323以“宽输入、大电流、高效率、小体积、可调输出”为核心优势,为中功率降压场景提供了高性价比的解决方案,适合对成本、体积、效率有综合要求的电子设计项目。

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