Analog Devices LTC4366CTS8-1#TRMPBF Clamper Circuit, 8-Pin, TSOT

The LTC®4366 surge stopper protects loads from high voltage transients. By controlling the gate of an external N-channel MOSFET, the LTC4366 regulates the output during an overvoltage transient. The load may remain operational while the overvoltage is dropped across the MOSFET. Placing a resistor in the return line isolates the LTC4366 and allows it to float up with the supply, therefore, the upper limit on the output voltage depends only on the availability of high valued resistors and MOSFET ratings.

Rugged Floating Topology
Wide Operating Voltage Range: 9V to >500V
Adjustable Output Clamp Voltage
Controls N-Channel MOSFET
Adjustable Protection Timer
Internal 9 Second Cool-Down Timer
Shutdown IQ < 14μA