Active production — 3 A buck with synchronous rectification
The TPS5432DDAR is a current-production step-down (buck) converter from Texas Instruments, delivering 3 A continuous output from a 2.95 V to 6 V input rail. The integrated synchronous rectifier improves efficiency over a diode-based buck — expect lower conduction loss at high output current, which matters when the 3 A rating is used near its ceiling in a thermally constrained layout.
700 kHz switching — inductor size vs efficiency trade-off
Switching at 700 kHz lets the designer use a physically smaller inductor than a 300 kHz part, at the cost of slightly higher switching losses. The 3 A output with synchronous rectification keeps the efficiency curve competitive in the 5 V-to-3.3 V and 5 V-to-1.8 V conversion sweet spots. The adjustable output range (0.808 V minimum, 4.5 V maximum) covers the common core and I/O voltages for FPGAs, MCUs, and SoCs — the 0.808 V floor accommodates the latest low-voltage logic rails.
Junction temperature range and package thermal path
ROHS3 compliant — no exemption-based restrictions on the bill of materials for EU or global markets.