WMSIC Electronic Components

Joulwatt(杰华特) JW5357MSOTB#TR

ModelJW5357MSOTB#TR
PackageSOT-23-6
BrandJoulwatt
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
Joulwatt JW5357MSOTB#TR
Type
JOULWATT
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JOULWATT
Electronic Component
JW5357MSOTB#TR
Electronic Component
1
Package
SOT-23-6
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.047g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0227623998
Operating Voltage
4.5V~18V
Switching Frequency
600kHz
Electronic Component
Electronic Component
Output Current
3A
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.

JW5357MSOTB#TR 产品概述

一、产品简介

JW5357MSOTB#TR 是杰华特(Joulwatt)推出的一款降压型同步开关电源芯片(Sync. Step-Down),采用降压(Buck)拓扑,输入电压范围为 4.5V~18V,最大输出电流 3A,开关频率 600kHz,静态工作电流仅 220µA。器件为内置开关管设计,输出为可调型,采用紧凑的 SOT-23-6 封装,适合空间受限的消费类和工业应用。

二、主要特点

  • 宽输入电压:4.5V 至 18V,适配单节到三节锂电池及常见汽车/工业电源轨。
  • 高输出能力:最高 3A 输出电流,可驱动中等功率负载。
  • 中高频工作:600kHz 开关频率,有利于减小外部电感与电容尺寸,支持更小型化方案。
  • 低静态电流:典型静态电流 220µA,有利于降低待机功耗,延长电池寿命。
  • 同步整流与内置开关管:简化外围器件选型与布局,提高转换效率并降低系统成本。
  • 输出可调:通过外部反馈网络灵活设置输出电压,支持多种电压轨需求。
  • 小体积封装:SOT-23-6,便于在空间受限的应用中集成。

三、设计优势与注意要点

JW5357 利用 600kHz 的开关频率在尺寸与效率间取得良好平衡:频率较高可以显著减小电感和滤波电容体积,但同时要求对布局和器件参数有更严格控制以降低开关噪声与 EMI。内置开关管降低了外部 MOSFET 的复杂度,但要关注封装的热性能及功耗分散,必要时在 PCB 上配置适当的散热铜箔。

低静态电流使其在轻载或待机状态下表现优异,适合电池供电场景;可调输出便于实现多种电压要求。由于是同步降压方案,效率在中高负载时优势明显。

四、典型应用场景

  • 便携式设备与电池供电系统(智能终端、手持仪器)
  • 工业控制模块与嵌入式系统电源
  • 通信设备的辅助电源与局部电压调整
  • 汽车电子(非直接接入高压总线的子系统)与消费电子产品

五、参考设计与 PCB 布局建议

  • 将电感、输入电容及输出电容尽可能靠近芯片引脚布局,缩短电流回路路径以降低 EMI。
  • 选择能够承受峰值电流且低损耗的电感,结合 600kHz 频率优化电感值(一般可采用几 µH 至数十 µH,需按纹波与效率折中)。
  • 输入端配置足够的去耦电容以抑制输入电源瞬变;输出端使用低 ESR 电容以降低输出纹波。
  • 注意热管理:在 PCB 上增加散热铜箔和过孔,以改善 SOT-23-6 封装的散热性能。
  • 做好接地分区与模拟/功率地分离,减少噪声干扰。

六、封装与订购信息

型号:JW5357MSOTB#TR;品牌:Joulwatt(杰华特);封装:SOT-23-6;后缀 #TR 通常表示带卷带(Tape & Reel)包装,便于自动贴片生产与批量采购。购买与设计时建议参考厂方完整数据手册与评估板资料以获取器件引脚定义、典型应用电路及可靠性说明。

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