Comparison · Converters

Quick Charge voltage converter 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: Test current: Quick Charge voltage converter (3.4 A vs. 2); Temperature rise: Quick Charge voltage converter (60 °C vs. 70); Price: Large Step-Up board modified into a SEPIC (0.6 $ vs. 1.34).

Model	Quick Charge voltage converter2019Read review →	Large Step-Up board modified into a SEPIC2015Read review →
Voltage, V	5	28
Current, A	3.4	2
Test current, A	3.4	2
Under load, V	5.16	3
Temperature rise, °C	60	70
Price, $	1.34	0.6
Review conclusion	With reservations	Recommended

Only in one review: In test 3.3 W (Large Step-Up board modified into a SEPIC); Ripple 300 mV (Quick Charge voltage converter).

Quick Charge voltage converter: A compact, inexpensive QC converter, but ripple is high and it cannot sustain maximum 5 V load for long.

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.