General Description
Sharp's chopper regulator PQ1CG21H2FZ/PQ1CG21H2RZ of TO-220 package uses PWM method. It is suitable for the applications of large voltage difference between input and output and applications of negative power supply thank to its low heat loss.

FEATUREs
(1) Maximum switching current: 1.5 A
(2) Built-in ON/OFF control function
(3) Built-in soft start function to suppress overshoot of output voltage in power on sequence or ON/OFF controll sequence.
(4) Built-in oscillation circuit
   (Oscillation frequency : TYP. 100 kHz)
(5) Built-in overheat/overcurrent protection function
(6) TO-220 package
(7) Variable output voltage
   (Output variable range : 1.26 to 35 V/-1.26 to -30 V)
   [Possible to choose step-down output/inversing output according to external connection circuit]
(8) PQ1CG21H2FZ : Zigzag forming
    PQ1CG21H2RZ : Self-stand forming

APPLICATIONs
(1) Switching power supplies
(2) Facsimiles, printers and other OA equipment
(3) Color TVs and video CDs
(4) Personal computers and amusement equipment