What this 1.2 A buck regulator delivers in a 3×3 mm footprint
The TPS62040DRCR is a synchronous step-down (buck) regulator from Texas Instruments, rated for 1.2 A continuous output current in a 10-VSON (3x3) package — a footprint that fits tight point-of-load slots on multi-rail boards. Switching at 1.25 MHz, it lets you use small-value inductors and ceramic output capacitors, shrinking the total converter area while keeping ripple under control. The output is adjustable from 0.7 V up to the input voltage (max 6 V), covering the core voltages of modern MCUs, FPGAs, and DSPs.
Output range, temperature grade, and synchronous rectification
Output voltage is set with an external resistor divider from a 0.7 V reference — the adjustable range runs from 0.7 V to 6 V, matching the 2.5 V to 6 V input supply window.
Sourcing posture and package availability
ROHS3 compliant per, with no known obsolescence risk.