Comparison · Converters

USB DC-DC board, type two or LM2596 DC-DC converter board

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: USB DC-DC board, type two (2.8 A vs. 1.5).

Model	USB DC-DC board, type two2019Read review →	LM2596 DC-DC converter board2016Read review →
Current, A	3	3
Test current, A	2.8	1.5
Review conclusion	With reservations	With reservations

Only in one review: Voltage 5 V (USB DC-DC board, type two); Ripple 110 mV (USB DC-DC board, type two); Temperature rise 60 °C (LM2596 DC-DC converter board).

USB DC-DC board, type two: Type two works but overheats, is limited to about 2.8 A, and has worse efficiency and ripple than type one.

LM2596 DC-DC converter board: The board works, but its ICs may be counterfeit; the author recommends keeping the load at or below 1.5 A.

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.