KA34063 − SMPS Controller


The KA34063A is a monolithic regulator sub System intended for use as DC to DC converter. This device contains a temperature compensated bandgap reference, a duty-cycle control oscillator, driver and high current output switch. It can be used for step down, step-up or inverting switching regulators as well as for series pass regulators.

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Product Status/Pricing/Packaging

Product Product & Eco Status *Pricing Packaging & Packing Info **Package Marking Convention Qualification Support Compliance Certificates
0 KA34063A Full Production
ROHS Compliant
$0.32  Details
0.13 x 0.25 x 0.381mm

Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code) &K
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FIT :  2.4  
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  • Operation from 3.0 to 40V input
  • Short circuit current limiting
  • Low standby current
  • Output switch current of 1.5A without externaltransistors
  • Output voltage adjustable
  • Frequency of operation from 100Hz to 100KHz
  • Step-up, step-down or inverting switching regulators


  • Other Consumer Electronics

Application Notes

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