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Linear Technology Releases Active Rectifier Controller with Reverse Protection
Reduction in power dissipation of up to 90% compared to a Schottky diode
Analog Devices announces the release of the LT8672, an active rectifier controller with reverse input protection to –40V.
Its 3V to 42V input voltage capability is ideal for automotive applications which must regulate through cold-crank and
stop-start scenarios with minimum input voltages as low as 3.0V and load dump transients up to 40V.
The LT8672 drives an external N-channel MOSFET, offering a 20mV drop, reducing power dissipation by 90% compared to a Schottky diode,
eliminating requirements for a costly heat sink. The ultrafast transient response enables it to meet stringent
automotive applications requiring AC input ripple rectification up to 100kHz.
Additionally, its 20µA quiescent current while operating and 3.5µA in shutdown are ideal for always-on systems.
The combination of the MSOP-10 package and external MOSFET ensures a compact solution footprint.
Key Features of the LT8672
The company's Web site address is www.linear.com.
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