3 A point-of-load buck — input range and package fit
The MAX15041ETE+ is an Analog Devices step-down (buck) regulator delivering 3 A continuous output from a 4.5 V to 28 V input rail. It sits in a 16-lead TQFN (3 mm × 3 mm) with an exposed pad — the paddle is the primary thermal path. The 0.606 V minimum adjustable output lets it power low-voltage cores, while the 350 kHz switching frequency keeps the inductor and output capacitor sizes moderate for a 3 A design.
Active lifecycle and compliance posture
It is ROHS3 compliant, which covers EU RoHS exemption categories through the latest recast.
Industrial temperature range and synchronous rectification
The integrated synchronous rectifier eliminates the external Schottky diode that a non-synchronous buck would need. At 3 A output the efficiency gain is most visible at lower duty cycles (high VIN-to-VOUT ratios), where the synchronous FET's lower forward drop beats a diode's VF.
Package and board-fit considerations
The 16-TQFN (3x3 mm) package has a 0.50 mm pitch — standard for a 16-lead QFN. The exposed pad on the underside must be soldered to a thermal land on the PCB; the datasheet's recommended land pattern includes a 2.2 mm × 2.2 mm pad with via array to the ground plane. Check the reel or tray label before the reflow profile is set — a bake cycle may be needed if the floor life has been exceeded.