WMSIC Electronic Components

MSKSEMI MS1509-5.0 MS1509

ModelMS1509-5.0
PackageSOP-8
BrandMSKSEMI
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
MSKSEMI MS1509-5.0
Type
MSKSEMI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MSKSEMI
Electronic Component
MS1509-5.0
Electronic Component
1
Package
SOP-8
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.192g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0264464057
Operating Temperature
20℃~+125℃
Operating Voltage
6V~40V
Switching Frequency
150kHz
Electronic Component
Electronic Component
Output Voltage
5V

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

MS1509-5.0 降压型DC-DC转换器产品概述

一、产品定位与核心功能

MS1509-5.0是美森科(MSKSEMI)推出的非同步降压型DC-DC转换器,主打宽输入电压覆盖、高可靠性与紧凑设计,专为需要5V固定输出的工业、车载及消费电子场景打造。其核心功能是将6V~40V直流输入高效转换为稳定的5V/3A输出,内置高压开关管无需外置MOSFET,简化电路设计同时降低BOM成本。

二、关键电气参数解析

1. 宽输入电压适配

输入范围6V40V,能兼容主流12V/24V系统(如汽车12V系统的10V14V工作区间、工业24V系统的18V30V范围),甚至支持3串10串锂电池组串联输入,无需额外降压预级电路。

2. 精准固定输出

输出电压固定为5V,最大输出电流3A,可满足多数5V负载需求(如MCU、传感器、USB充电模块、小型显示屏等),输出精度能覆盖一般工业与消费电子的电压要求(典型纹波≤50mV)。

3. 内置开关管设计

集成高压开关管(无需外置MOS),减少外部元件数量,同时降低因外置元件焊接不良导致的故障风险,提升系统可靠性。

4. 静态电流与效率平衡

静态电流(Iq)为5mA,待机功耗适中,适合对静态电流有一定要求的低功耗设备;非同步整流结构虽效率略低于同步方案(典型负载下85%~90%),但结构简单、热损耗稳定,可靠性更高。

5. 中低频开关频率

150kHz开关频率属于中低频段,电磁干扰(EMI)相对易控制,且无需使用极小感值电感(推荐匹配10uH~22uH),降低电感选型难度与成本。

6. 宽温工作范围

-20℃~+125℃的工作温度,覆盖大部分工业现场(车间、户外设备)及车载环境(排除极端低温场景),高低温下仍能保持输出稳定。

三、封装与可靠性特点

MS1509-5.0采用SOP-8封装,体积小巧(约5mm×6mm),适合PCB布局紧凑的产品(如车载模块、小型工业控制器);SOP封装焊接可靠性高,易与自动化生产匹配。

可靠性方面,除宽温设计外,内置开关管减少外部故障点;非同步整流结构的热损耗稳定,125℃高温下仍能持续输出,适合振动、温度波动大的 harsh环境。

四、设计优势与应用注意事项

设计优势

  • 简化电路:内置开关管+固定输出,仅需搭配电感、输入输出滤波电容即可工作,无需复杂反馈调节;
  • 宽压复用:无需针对不同输入电压更换器件,降低设计复用成本;
  • 成本可控:SOP-8封装+内置MOS,BOM成本低于外置MOS降压方案。

应用注意事项

  • 电感选型:需用10uH~22uH、电流 rating≥3A的功率电感,避免饱和;
  • 滤波电容:输入加10uF以上低ESR电容,输出加22uF以上电容,减少纹波;
  • 负载降额:125℃高温下建议负载≤2.5A,避免长时间满载;
  • EMI控制:PCB布局需将输入电容靠近芯片输入脚,电感远离敏感电路。

五、典型应用场景

  1. 车载电子:汽车12V/24V系统给5V MCU、车载显示屏、USB充电口供电;
  2. 工业控制:24V PLC、传感器模块、工业网关的5V电源转换;
  3. 户外设备:太阳能供电系统(6V~24V输入)给5V监测设备供电;
  4. 消费电子:户外移动电源(锂电池组串联)给手机、平板等5V设备充电。

MS1509-5.0凭借宽电压、高可靠、易设计的特点,成为中低端降压场景的实用选择,尤其适合对成本敏感且需要稳定5V输出的工业与车载产品。

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