1V fixed output at 200mA — the quiescent current is the story
The Toshiba TCR2LF10,LM(CT is a single-output positive LDO that delivers a fixed 1V rail at up to 200mA from a maximum 5.5V input. Its 2 µA quiescent current (Iq) means the regulator's own draw is negligible in battery-powered or always-on circuits — a sensor node pulling 1 µA in sleep mode sees the LDO's Iq as the dominant load, so the 2 µA figure sets the floor for standby power budgeting.
Package, control, and protection for board integration
Housed in the SC-74A / SOT-753 package (supplier device package SMV), this is a five-pin surface-mount footprint that shares its land pattern with many small-signal regulators — the enable pin (active-high) lets the system processor gate the output rail, and the over-current protection folds back the output when the load exceeds the 200mA rating.