FR9872中文资料Buck DC-DC 数据手册Fitipower规格书

描述 Description

The FR9872 is a synchronous step-down DC/DC converter that provides wide 4.5V to 18V input voltage range and 2.5A continuous load current capability. Fault protection includes cycle-by-cycle current limit, input UVLO, output over voltage protection and thermal shutdown. Besides, adjustable soft-start function prevents inrush current at turn-on. This device uses current mode control scheme that provides fast transient response. In shutdown mode, the supply current is about 10μA. The FR9872 is available in SOP-8 (exposed pad) package, which provides a very compact system solution and good thermal conductance.

特性 Features

● Wide Input Voltage from 4.5V to 18V
● 2.5A Output Current
● Adjustable Output Voltage from 0.925V to 14V
●130mΩ Integrated Power MOSFET
● High Efficiency up to 93%
● Fixed 1.4MHz Switching Frequency
● Current Mode Operation
● Adjustable Soft-Start
● Cycle-by-Cycle Current Limit
● Input Under Voltage Lockout
● Over-Temperature Protection with Auto Recovery
● 10μA Shutdown Current
● Thermal Enhanced SOP-8 (Exposed Pad) Package
● RoHS Compliant

应用 Application

● Set-Top-Box
● DVD,LCD Display
● OLPC, Netbook
● Distributed Power System
● Datacom, XDSL