方案描述：

天鈺科技為一家专业的电源管理与液晶显示器驱动 IC 晶片设计公司，1995 年创立於台湾新竹科学园区，於 2010 年通过兴柜申请，拥有精湛的类比、数位、与混合讯号之研发能力，產品涵盖液晶面板驱动 IC、电源管理 IC 与马达驱动 IC 等多种產品。

方案主控型号

类型：DC/DC                     型号：FP6381A                                   厂商：Fiti

类型：DC/DC                     型号：FP7708                                     厂商：Fiti

类型：AC/DC                     型号：FP6601QS6                               厂商：Fiti

方案详情

一、方案展示

普通TV电源架构

机顶盒电源架构

无线路由器电源架构

安防NVR DVR电源架构

Type-c Hub 电源架构-vl100

手机CMOS swnsor模组

二：芯片功能及介绍

1、高压直流转换芯片

2、低压直流转换芯片

3、快充识别芯片

4、VCM驱动芯片

三：应用领域

USBCOB、 USB3.0、 NVR/DVR 、智能电表、 STB、 4GLET、 IP Cam

FP6381A

Description The FP6381A is a high efficiency, high frequency synchronous DC-DC step-down converter. The 100% duty cycle feature provides low dropout operation, extending battery life in portable systems. The internal synchronous switch increases efficiency and eliminates the need for external Schottky diode. At shutdown mode, the input supply current is less than 1µA. The current limit protection and on-chip thermal shutdown features provide protection against any combination of overload or ambient temperature.

Features 

*Low RDS(ON) for Internal Switch (Top/Bottom): 300/250mΩ 

*2.5V~5.5V Input Voltage Range  1.2A Output Current 

*1.5MHz Switching Frequency Minimizes the External Components 

*Internal Soft-start Limits the Inrush Current 

*Internal Compensation Function 

*100% Dropout Operation 

*Power Good Indicator Output (SOT-23-6 only) 

*RoHS Compliant and Halogen Free 

*SOT-23-5 and SOT-23-6 Packages

Applications 

*Set Top Box 

*LCD TV 

*Tablet 

*Portable Equipment