Comparison · Converters

MC34063 or Large Step-Up board modified into a SEPIC

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: Large Step-Up board modified into a SEPIC (0.6 $ vs. 4).

Model	MC340632015Read review →	Large Step-Up board modified into a SEPIC2015Read review →
Voltage, V	12	28
Under load, V	11.44	3
Price, $	4	0.6
Review conclusion	Recommended	Recommended

Only in one review: Current 2 A (Large Step-Up board modified into a SEPIC); In test 3.3 W (Large Step-Up board modified into a SEPIC); Test current 2 A (Large Step-Up board modified into a SEPIC); Temperature rise 70 °C (Large Step-Up board modified into a SEPIC).

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

Large Step-Up board modified into a SEPIC: After modification, the board works stably and delivers up to 700 mA at 3.3 V from a lithium cell.

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.