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FR9801的升级版本FR9811一级代理 原装现货
The FR9811 is a synchronous step-down DC/DC
converter with fast constant on time (FCOT) mode
control. The device provides 4.5V to 23V input
voltage range and 2A continuous load current
capability. It is constant on time pulse width
modulation (PWM) controller that supports FCOT
mode control. Operation frequency depends on Input
and output voltage condition.
The FR9811 fault protection includes cycle-by-cycle
current limit, short circuit protection, UVLO and
thermal shutdown. The soft-start function prevents
inrush current at turn-on. The FR9811 use fast
constant on time control that provides fast transient
response, the noise immunity and all kinds of very
low ESR output capacitor for ensuring performance
stabilization.
The FR9811 is offered in SOT-23-6 package, which
provides good thermal conductance.
Low RDS(ON) Integrated Power MOSFET
(145mΩ/90mΩ)
l Wide Input Voltage Range: 4.5V to 23V
l Output Voltage Range: 0.6V to 8V
l 2A Output Current
l FCOT Mode Enables Fast Transient Response
l Pseudo 850kHz Frequency
l Input Under Voltage Lockout
l Internal 1.5ms Soft-Start
l Cycle-by-Cycle Current Limit
l Hiccup Short Circuit Protection
l Over Temperature Protection with Auto Recovery
l SOT-23-6 Package
Applications
l STB (Set-Top-Box)
l LCD Display, TV
l Distributed Power System
l Networking, XDSL Modem
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