Fixed 10 V rail for sensor and bias supplies
The BDJ0GA3WNUX-TR is a single-output positive LDO from ROHM, delivering a fixed 10 V at up to 300 mA. The enable pin lets the system power-cycle the rail without a separate load switch.
Dropout and input headroom
Maximum dropout is 0.9 V at the full 300 mA load, so the input must stay above 10.9 V to maintain regulation. The 14 V input maximum accommodates a nominal 12 V bus with typical ±10 % ripple, but a 15 V rail is out of range. If your upstream supply sits at 12 V and you need margin for transients, the 14 V ceiling is a hard limit — no derating headroom above that.
Protection and thermal envelope
Over-current and over-temperature protection are built in, plus a soft-start ramp that limits inrush into capacitive loads. The quiescent supply current maxes at 900 µA, so it's not a micropower LDO, but acceptable for always-on bias rails in equipment that isn't battery-operated.
It is ROHS3 compliant.