PQ1PF3 Datasheet (Sharp) - Primary Regulator

PQ1PF3, Primary Regulator

SHARP’s PQ1PF3/PQ2PF3 are primary regulators for switching power supply.

It reduces parts count and power loss of the switching section, by integrating a power MOS-FET and control IC into a single chip.

NOTES: 1 Drain (VDS) 2 GND 3 Control (CA) 4 Feed back (FB) 5 Supply voltage (VCC) Dimensions are

PQ1PF3 Features

* Five-terminal lead forming package (equivalent to TO-220)

* Built-in oscillation circuit (oscillation frequency: 100 kHz)

* Improved efficiency at low load, switching the oscillation frequency by external control signal

* Output for power supply 10 W class