Comparison · Converters

UPS-1228-12 or LM2596S buck DC-DC converter

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: In test: UPS-1228-12 (100 W vs. 10); Test current: UPS-1228-12 (10 A vs. 1); Efficiency: UPS-1228-12 (98 % vs. 90).

Model	UPS-1228-122024Read review →	LM2596S buck DC-DC converter2014Read review →
In test, W	100	10
Test current, A	10	1
Efficiency, %	98	90
Review conclusion	With reservations	Recommended

Only in one review: Voltage 28 V (UPS-1228-12); Current 8.3 A (UPS-1228-12); Power 100 W (UPS-1228-12); Ripple 240 mV (UPS-1228-12); Temperature rise 106 °C (UPS-1228-12); Price 40 $ (UPS-1228-12).

UPS-1228-12: The board showed high efficiency and exceeded its rated power, but it is expensive and has an awkward auto-start behavior.

LM2596S buck DC-DC converter: The author recommends the boards but warns about mediocre capacitors and the seller's short shipment.

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.