PL3900 100V Multi-Phase Synchronous Buck/Boost Controller
The PL3900 is a high performance Multi-Phase single
output synchronous buck/boost converter controller
that drives two N-channel power MOSFET stages
out-of-phase. Multiphase operation reduces input and
output capacitor requirements and allows the use of
smaller inductors than the single-phase equivalent. Synchronous rectification increases efficiency, reduces power losses and eases thermal
requirements, enabling high power boost applications.









