Comparison · Converters

TPS40057-based converter or DC-DC converter with display

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: Ripple: DC-DC converter with display (60 mV vs. 100); Temperature rise: TPS40057-based converter (100 °C vs. 110.2).

Model	TPS40057-based converter2019Read review →	DC-DC converter with display2015Read review →
Current, A	5	5
Ripple, mV	100	60
Temperature rise, °C	100	110.2
Review conclusion	Recommended	With reservations

Only in one review: Voltage 29 V (DC-DC converter with display); Test current 3 A (DC-DC converter with display); Under load 5.02 V (TPS40057-based converter); Price 1.43 $ (TPS40057-based converter).

TPS40057-based converter: The board handles up to 9.5 A, but the input diode gets hot; the author recommends bypassing or relocating it.

DC-DC converter with display: The compact converter is usable up to about 2 A, but heats up considerably at higher currents and may fail with excessive input voltage.

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.