FR9885

Lily 0755-83234073 159 153 736 32 Q Q 100 754 5980 fitipower integrated technology lnc. FR9885 18V, 2A, 500KHz Synchronous Step-Down DC/DC Converter Description The FR9885 is a synchronous step-down DC/DC converter that provides wide 4.5V to 18V input voltage range and 2A peak load current capability. At light load condition, the FR9885 can operate at PSM mode to support high efficiency and reduce power loss. The FR9885 fault protection includes cycle-by-cycle current limit, UVLO, output overvoltage protection and thermal shutdown.The internal 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 about 1µA. The FR9885 is offered in SOT-23-6 package and provides good thermal conductance. Pin Assignments S6 Package (SOT-23-6) Features Low Rds(on) Integrated Power MOSFET (170mΩ/135mΩ) Internal Compensation Function Wide Input Voltage Range: 4.5V to 18V Adjustable Output Voltage Down to 0.6V 2A Peak Output Current 500kHz Switching Frequency Internal 0.8ms Soft-Start Cycle-by-Cycle Current Limit Hiccup Short Circuit Protection Over-Temperature Protection with Auto Recovery OVP and UVLO SOT-23-6 Package Applications STB (Set-Top-Box) LCD Display, TV Distributed Power System Networking, XDSL Modem Ordering Information FR9885□□□ TR: Tape/...