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Comparing N-Channel and P-Channel MOSFETs: Which is best for your application?
This article compares the n-channel and p-channel power MOSFETs, introduces the complete Littelfuse p-channel power MOSFETs portfolio, and explores target applications.
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A full brick package developed by TDK-Lambda, the PF1500B-360, is for high voltage distributed power architectures
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The models accept input voltages from 4.5 to 14V and have an adjustable output voltage range from 0.6 to 5V (1.8V max for 18A model). Designed for a minimal footprint, the LGA modules measure just 12.2 x 12.2 x 8.0mm. The converters offer a typical efficiency figure of 91.6% at 12Vin, and are able to operate in a temperature range of -30 to 95°C.
The operating temperature range is suitable for networking, computing, servers, telecomms, industrial, and other distributed power applications. They are designed to power low-voltage silicon devices such as CPUs, FPGAs, microcontrollers, logic circuits, memory, and other analogue/digital devices in mixed voltage systems.
All power management functions can be reconfigured for user-specific needs using the PMBus interface. Standard features are short circuit, over-current, over- voltage, over-temperature, and input under-voltage protection, voltage margining and tracking, power good, remote sense, and remote on/off. The converters employ adaptive compensation of the PWM control loop, a phase spreading feature to reduce input capacitance, synchronisation to reduce EMI filtering, and an optimised dead time control, says the company. Default firmware configuration is suitable for a range of input voltage, output voltage, and load.
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