Fixed 1.05 V rail for low-voltage loads
The TCR3DM105,LF(SE is a fixed-output positive LDO from Toshiba, delivering a regulated 1.05 V at up to 300 mA. The 0.75 V maximum dropout at full load means the input must stay above 1.80 V to maintain regulation — a tight window that suits battery-powered or low-VIN rails powering MCU cores, sensor analog supplies, or RF front-ends.
Dropout and thermal headroom at 300 mA
With a maximum input voltage of 5.5 V, the part can run from a 3.3 V or 5 V rail, but the dropout spec at 300 mA (0.75 V max) sets the practical lower bound: a 1.8 V input is marginal, 2.5 V gives comfortable margin.
Active production and package availability
Protection and temperature grade
Built-in over-current and over-temperature protection guard against output shorts or excessive ambient heat.