FR9886 PDF – Step-Down DC/DC Converter

Part Number: FR9886

Function: 380KHz Synchronous Step-Down DC/DC Converter

Package: SOP-8 Pin Type

Manufacturer: fitipower integrated technology

Images:FR9886 pinout datasheet


The FR9886 is a synchronous step-down DC/DC converter that provides wide 4.5V to 23V input voltage range and 2.5A continuous load current capability. The FR9886 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 which provides fast transient response. Internal Compensation function reduces external compensation components and simplifies the design process. In shutdown mode, the supply current is less than 1uA. The FR9886 is available in an 8-pin SOIC package, provides a very compact system solution and good thermal conductance.


. High Efficiency up to 96%
. Low Rds(on) Integrated Power MOSFET
. Internal Compensation Function
. Wide Input Voltage Range: 4.5V to 23V
. Adjustable Output Voltage from 0.925V to 20V
. 2.5A Output Current
. Fixed 340KHz Switching Frequency
. Current Mode Operation
. Adjustable Soft-Start
. Cycle-by-Cycle Current Limit
. Over-Temperature Protection with Auto Recovery
. Output Overvoltage Protection
. Under Voltage Lockout
. <1μA Shutdown Current

FR9886 pdf


1. STB (Set-Top-Box)
2. LCD Display, TV
3. Distributed Power System
4. Networking, XDSL Modem

FR9886 PDF Datasheet