Specs side by side
2 parts compared · 0 differing specs across 5 total parameters.
| Parameter | ||
|---|---|---|
| Case | DIP-8 / SOIC-8 | DIP-8 / SOIC-8 |
| Component Category | Switching Regulator Controllers | Switching Regulator Controllers |
| Market Reality | The MC34063 is the 8-pin answer to everything cheap and switching: buck, boost and inverting converters built from one die with a 1.25V reference, an internal Darlington switch and current limiting set by a single sense resistor. It appears in ten million car chargers, adapter boards and appliance supplies, and its substitution story is the cleanest in the analog world: MC34063A and MC33063A are the same silicon under different temperature grades (commercial and industrial), with NCV and CW prefixes walking the same line. The design story is also the buying story: almost every failure and every fake argument in this part lives in the sense resistor and the timing capacitor - the two components the datasheet formulas exist for. | The MC34063 is the 8-pin answer to everything cheap and switching: buck, boost and inverting converters built from one die with a 1.25V reference, an internal Darlington switch and current limiting set by a single sense resistor. It appears in ten million car chargers, adapter boards and appliance supplies, and its substitution story is the cleanest in the analog world: MC34063A and MC33063A are the same silicon under different temperature grades (commercial and industrial), with NCV and CW prefixes walking the same line. The design story is also the buying story: almost every failure and every fake argument in this part lives in the sense resistor and the timing capacitor - the two components the datasheet formulas exist for. |
| Role In Circuit | Original Reference Part | Original Reference Part |
| Sourcing Status | Active Shenzhen Spot Sourcing (24–48h) | Active Shenzhen Spot Sourcing (24–48h) |