Fixed 1.5 V rail — no resistor divider needed
The TPS62301YZDT is a fixed-output step-down (buck) converter from Texas Instruments, delivering a regulated 1.5 V from an input range of 2.7 V to 6 V. The fixed output means the feedback pin is internally trimmed — no external resistor divider occupies board space or adds tolerance drift. That 1.5 V rail is common for low-voltage digital cores, DSPs, or memory I/O in portable and battery-powered gear.
3 MHz switching shrinks the passives — layout is the catch
Switching at 3 MHz lets the designer use a 1 µH or smaller inductor and 4.7 µF output caps, saving board area in space-constrained builds. The trade-off: the 8-DSBGA package (0.5 mm ball pitch) demands a controlled-impedance PCB stack and a tight loop from input cap to inductor to output cap — stray inductance at this frequency kills efficiency and rings the switch node.
500 mA output — load budget for a low-power rail
Rated for 500 mA continuous output, this part fits a sub-2.5 W rail — think MCU core, Bluetooth SoC, or sensor supply.
Obsolete — plan for surplus or last-time-buy
Confirm the date code and moisture-sensitivity level (MSL) before stenciling; DSBGA packages absorb moisture quickly and may require a bake before reflow.