Comparison · Converters

TPS40057-based converter or MC34063

Two models side by side: measurements taken by the author in their reviews, and their conclusions. The better value in each row is highlighted.

In brief: Based on review measurements: Price: TPS40057-based converter (1.43 $ vs. 4).

Model	TPS40057-based converter2019Read review →	MC340632015Read review →
Under load, V	5.02	11.44
Price, $	1.43	4
Review conclusion	Recommended	Recommended

Only in one review: Voltage 12 V (MC34063); Current 5 A (TPS40057-based converter); Ripple 100 mV (TPS40057-based converter); Temperature rise 100 °C (TPS40057-based converter).

TPS40057-based converter: The board handles up to 9.5 A, but the input diode gets hot; the author recommends bypassing or relocating it.

MC34063: The author tested the MC34063 in a buck-boost converter and was pleased with the chips, especially for the price.

Figures were taken from the review text and checked against the quoted passages. Measurement conditions differ between reviews, so read the reviews yourself before buying. Prices at the time of review.