Fixed 3.3 V rail for sensor and MCU supplies
The ISL9008AIENZ-T is a single-output LDO from Renesas, delivering a fixed 3.3 V output at up to 150 mA — a common rail for powering MCUs, sensor front-ends, or low-power wireless modules in portable and industrial designs.
Dropout and quiescent current — margin and battery life
Maximum dropout is 325 mV at the full 150 mA load — the input rail must stay at least that much above 3.3 V across the load range to keep the output in regulation. A 3.6 V Li-ion near end-of-discharge still clears this margin. Quiescent current is 66 µA typical — low enough that a battery-powered sensor waking once a minute spends more energy on the active cycle than on the regulator's own draw. An enable pin (active-high logic) lets the system shut down the regulator entirely when the load is idle, cutting the supply current to near zero.
Protection set for unattended or remote gear
Built-in overcurrent and overtemperature protection, plus soft-start and undervoltage lockout (UVLO), guard against startup surges and fault conditions — useful for equipment that powers up into a capacitive load or runs in an enclosure with limited airflow.
SC-70-5 footprint and surface-mount assembly
Housed in a 5-lead SC-70-5 (SOT-353) package, the part suits high-density PCBs where board space is tight. The supplier device package is SC-70-5, matching the standard land pattern for this footprint.