Comparison · Converters

Universal USB-powered voltage converter 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: Universal USB-powered voltage converter (14 W vs. 10); Test current: Universal USB-powered voltage converter (2.3 A vs. 1).

Model	Universal USB-powered voltage converter2019Read review →	LM2596S buck DC-DC converter2014Read review →
In test, W	14	10
Test current, A	2.3	1
Review conclusion	With reservations	Recommended

Only in one review: Voltage 30 V (Universal USB-powered voltage converter); Current 2 A (Universal USB-powered voltage converter); Power 15 W (Universal USB-powered voltage converter); Efficiency 90 % (LM2596S buck DC-DC converter); Weight 52 g (Universal USB-powered voltage converter); Price 4.23 $ (Universal USB-powered voltage converter).

Universal USB-powered voltage converter: An interesting, versatile converter, but its readings are inaccurate and current adjustment can malfunction.

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.