Trench P-Channel MOSFETs are well suited for ‘high side’ switching applications where a simple drive circuit referenced to ground can be employed, avoiding additional ‘high side’ driver circuitry commonly involved when using an N-Channel MOSFET. This enables designers to reduce component count, thereby improving drive circuit simplicity and over-all component cost structure. Furthermore, it allows for the design of a complementary power output stage with a corresponding N-Channel MOSFET, for a power half bridge stage paired with a simple drive circuit.
Advantages:
Low gate charge resulting in simple drive requirement
High power density
Fast switching