【应用】国产同步整流芯片KP4060LGA助力30W电源设计，工作频率支持600KHz，驱动电流最高可达5A

时间： 2023-02-12 来源：世强

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随着科技的发展，电路的整体功耗要求越来越低，低电压与大电流成为主流。传统设计小功率电源如30W电源，采样异步整流的方式将高压直流电输出成低压直流电，电路简单但是转换效率只能达到80%左右，如今主流的方式是使用同步整流来提高转换效率，最高可达95%。

本文推荐必易微的同步整流芯片 KP4060LGA，其中同步整流芯片在电源设计中的使用位置如图一所示：

图一：30W电源设计内部框图

必易微的同步整流芯片KP4060LGA在30W电源设计中的使用优势如下：

1、工作频率支持600KHz，满足大范围小功率电源设计，提高转换效率，供客户灵活使用；

2、集成180V高耐压检测电路和高压供电电路，支持QC、PD等快充协议；

3、开通和关断延时＜30ns，快速响应时间，减小电路损耗；

4、Gate驱动最大电流可达5A，配置外置MOS，相比肖特基二极管更加提高系统效率；

综上所述，必易微的同步整流芯片KP4060LGA适合用在30W电源设计中。

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描述- 本文介绍了必易微电子的快充和同步整流产品。涵盖了18-100W快充电源产品选型表，包括产品型号、封装、推荐功率、VDD电压、启动方式、最高频率、输入保护等信息。同时，还介绍了必易微主推快充产品分布图，以及KP2202/KP2206高频率、高效率、准谐振式PD电源PWM驱动控制器。此外，还详细介绍了同步整流产品KP4114X/KP4115X的典型规格、拓扑配置、产品特色和应用差异。最后，还比较了KP4056X/KP4051X与KP4126X/KP4128X的差异。

型号- KP2206SSGA,KP40561,KP4051,KP4050,KP41142SGA,KP4060LGA,KP2203LGA,KP2206SGA,KP40511SGA,KP4051X,KP40511WGA,KP41152SGA,KP2202SGA,KP41261SGA,KP40562,KP4128X,KP22308A,KP223XX,KP223XXWGA,KP22308WGA,KP23111,KP23110,KP41240,KP41141SGA,KP22066WEGA,KP40562SGA,KP22306AWGA,KP22064WEGA,KP4050LGA,KP41260SGA,KP41151SGA,KP4115X,KP40512,KP22308AWGA,KP22035,KP2206X,KP40511PSGA,KP41140SGA,KP2202SSGA,KP2205LGA,KP40561SGA,KP2205,KP2206,KP2203,KP40510PSGA,KP41282SGA,KP22306A,KP4126X,KP4114X,KP2201,KP2202,KP4060,KP41260,KP41261,KP22306WGA,KP23132,KP41262,KP23131,KP23130,KP40512MSGA,KP22035WGA,KP40512SGA,KP22315AWGA,KP2201SGA,KP41262SGA,KP22315A,KP40512M,KP4056X

2021-09 - 必易微 - 商品及供应商介绍代理服务技术支持采购服务