MC34063 DC-DC Buck/Boost/Inverting Regulator IC, DIP-8
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Prices updated: 12 Oct 2026
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About this product
MC34063 switching regulator IC in a DIP-8 package that can be configured as a buck (step-down), boost (step-up) or inverting converter. It accepts 3V to 40V input and delivers up to 1.5A output with few external components, and is common in hobby and prototype power designs.
Specifications
- Topologies
- Buck, Boost, Inverting
- Input voltage
- 3V - 40V
- Output voltage
- 1.25V - 40V (adjustable)
- Output current
- 1.5A (max)
- Package
- DIP-8
Frequently asked questions
Which external components does the MC34063 need?
It needs an external inductor, a catch diode (Schottky is typical), an output capacitor, a timing capacitor and resistors that set the output voltage and current limit.
Can it convert 12V to 5V?
Yes. In buck mode a 12V input to 5V output is within its range, as long as the load stays within 1.5A and the inductor is sized for the design.
