3 A automotive buck in a 3×2 mm wettable-flank QFN
The TPS6281320QWRWYRQ1 is a Texas Instruments automotive-grade synchronous step-down converter rated for 3 A continuous output from a 2.75 V to 6 V input rail.
Switching frequency and thermal budget
Switching frequency is programmable from 1.8 MHz to 4 MHz, letting the designer trade off inductor size against switching losses. The 9-VFQFN (3x2) package with exposed pad and wettable flank terminals keeps the thermal path through the PCB copper pour; junction temperature is rated to 125°C, matching the under-hood ambient profile.
AEC-Q100 and production status
The wettable flank package supports automated solder-joint inspection per automotive quality standards.