Description
The FR9888 is a synchronous step-down DC/DC
converter that provides wide 4.5V to 23V input
voltage range and 3.5A continuous load current
capability.
The FR9888 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 FR9888 is available in an 8-pin SOIC package,
provides a very compact system solution and good
thermal conductance.
Features
● 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 Range: 0.925V to
20V
● 3.5A Output Current
● Fixed 340KHz Switching Frequency
● Current Mode Operation
● Adjustable Soft-Start
● Cycle-by-Cycle current limit
● Input Under Voltage Lockout
● Over-Temperature Protection With Auto
Recovery
● <1uA Shutdown Current
●SOP-8 Exposed Pad Package
Applications
● Set-Top-Box (STB)
● Televisions
● Distributed Power Systems
● XDSL Modems
PW代理商：深圳市夸克微科技
郑生： 13528458039
QQ ： 2867714804
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