WMSIC Electronic Components

Siproin SSP9322

ModelSSP9322
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 SSP9322
Type
SIPROIN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SIPROIN
Electronic Component
SSP9322
Electronic Component
1
Package
SOT-23-6
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.044g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0265617017
Operating Temperature
40℃~+85℃
Operating Voltage
4.5V~28V
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.

SSP9322 降压型DC-DC转换器产品概述

一、产品定位与核心特性

SSP9322是上海矽朋(Siproin)推出的同步降压型DC-DC转换器,针对中小功率、宽电压输入场景优化设计。核心特性聚焦于高效能、小体积、低待机功耗,内置功率开关管减少外围元件,同步整流架构提升转换效率,可调输出电压适配多场景需求,是便携电子、工业控制、车载电子等领域的高性价比解决方案。

二、关键性能参数解析

SSP9322的参数覆盖宽输入范围与稳定输出能力,核心参数如下:

  • 输入电压范围:4.5V~28V,兼容单节锂电池(3.7V/4.2V)、12V车载电源、24V工业电源等常见输入,无需额外适配电路;
  • 输出电流能力:最大2A连续输出,满足USB充电、微控制器供电等中小功率负载需求;
  • 开关频率:固定500kHz,平衡转换效率与电感/电容尺寸(避免高频干扰同时,缩小外围元件体积);
  • 静态电流(Iq):300μA(典型值),低待机功耗延长电池供电设备的待机时间;
  • 工作温度范围:-40℃~+85℃,覆盖工业级环境温度要求,适应户外或极端工况;
  • 整流架构:内置同步整流,替代传统异步整流的续流二极管,降低导通损耗,满载效率可达90%以上;
  • 开关管配置:内置高低侧功率MOSFET,无需外置开关管,简化PCB设计与BOM成本;
  • 输出类型:可调输出,通过外部电阻分压可设置0.8V~V_in范围内的任意电压,适配多负载电压需求。

三、封装与应用场景

3.1 封装形式

采用SOT-23-6封装,尺寸紧凑(约2.9mm×2.5mm×1.1mm),节省PCB布局空间,适合便携设备、小型模块的高密度设计。

3.2 典型应用领域

  1. 便携电子:移动电源(12V转5V/2A输出)、智能穿戴(3.7V转3.3V/1A输出)、蓝牙音箱;
  2. 工业控制:传感器节点(24V转3.3V/2A输出)、PLC辅助电源、小型电机驱动;
  3. 车载电子:12V/24V转5V/USB供电、车载显示屏背光电源、行车记录仪供电;
  4. 消费电子配件:手机充电器(5V/2A输出)、无线充电器辅助电源、小家电控制板。

四、设计优势与外围简化

SSP9322针对工程师开发流程优化,核心优势体现在:

  • 外围元件少:内置开关管+同步整流,仅需电感、电容、分压电阻即可实现稳定输出,减少BOM数量与成本;
  • 宽输入适应性:4.5V~28V输入覆盖多数常见电源,无需额外设计输入适配电路;
  • 低EMI干扰:500kHz固定开关频率+内置软启动,降低电磁干扰(EMI),满足消费电子与工业设备的EMC要求;
  • 保护功能:内置过流保护(OCP)、过热关断(TSD),提升产品可靠性,避免负载异常损坏芯片。

五、典型应用电路示例

以12V输入转5V/2A输出为例,外围电路仅需:

  • 输入电容:10μF陶瓷电容(滤除输入纹波);
  • 输出电容:22μF陶瓷电容(稳定输出电压);
  • 电感:4.7μH功率电感(配合500kHz开关频率实现高效转换);
  • 分压电阻:R1(上拉5.25kΩ)、R2(下拉1kΩ),根据公式V_out=0.8V×(1+R1/R2)计算得5V输出。

该电路转换效率≥90%,输出纹波≤50mV,满足多数USB设备供电要求。

SSP9322凭借宽输入范围、高效同步整流、小体积封装与低待机功耗,成为中小功率降压场景的高性价比选择,适配多领域电源设计需求。

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