Controller identity and backplane fit
The ADM1170-1AUJZ-RL7: It drives an external N-channel MOSFET — there is no internal switch, so the FET selection sets the continuous current ceiling. The 650 µA supply current keeps the quiescent load negligible for always-on monitoring.
Programmable protection and I²C interface
Three programmable features are available: current limit, fault timeout, and turn-on voltage. These are set via external resistor and capacitor values, giving the designer control over the inrush profile and the fault response. The controller includes an I²C interface for status readback and includes UVLO (undervoltage lockout) and auto-retry on fault. The auto-retry behaviour means the controller will continuously attempt to re-start after a fault clears, which is useful for transient overload conditions.
Package, temperature grade, and compliance
Housed in an 8-lead TSOT-23-8 package (SOT-23-8 Thin variant), the part has a compact footprint with no exposed thermal pad. RoHS3 compliant per the manufacturer's documentation.
Active lifecycle and sourcing
Lifecycle status is Active — no end-of-life or not-recommended-for-new-designs notice is on file from Analog Devices. The closest functional peer in the family is the ADM1176-1ARMZ-R7, which adds current and voltage monitoring readback via the same I²C bus. The ADM1170-1AUJZ-RL7 lacks the ADC and monitor block, so it is a lower-cost option when only inrush control is needed.