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Analog Devices ADM1172-1AUJZ-RL7 — Analog & Data Acquisition

ADM1172-1AUJZ-RL7 Hot Swap Controller, I²C, TSOT-23-8

MPNADM1172-1AUJZ-RL7
End of Life

Analog Devices ADM1172-1AUJZ-RL7, Hot Swap Controller, 1 channel, 2.7V to 16.5V supply, 650 µA supply current, I²C, UVLO, Auto Retry, -40°C to 85°C, TSOT-23-8 package.

$6.57Ref. price · indicative, final on quote
PackagingSOT-23-8 Thin, TSOT-23-8
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ADM1172-1AUJZ-RL7 specifications
ParameterValue
TypeHot Swap Controller
MountingSurface Mount
Supply voltage2.7V ~ 16.5V
Current - supply650 µA
Operating temperature-40°C ~ 85°C
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesAuto Retry, I²C, UVLO
ApplicationsGeneral Purpose
CaseSOT-23-8 Thin, TSOT-23-8
Internal switchNo
Channels1
Programmable featuresCurrent Limit, Fault Timeout, Turn On Voltage

Product details

Programmable features — current limit, fault timeout, UVLO

Three programmable parameters give the designer control over inrush and fault response: current limit sets the maximum load current via an external sense resistor; fault timeout defines how long an overcurrent condition is tolerated before the MOSFET is latched off or retried; turn-on voltage (UVLO) sets the input voltage at which the controller enables the gate drive. The auto-retry feature (the '-1' variant) automatically attempts to restart after a fault, which is useful for transient loads or hot-swap cards that must self-recover without a system reset.

Package and mounting — TSOT-23-8 for compact layouts

Housed in a TSOT-23-8 package (also listed as SOT-23-8 Thin), this is a surface-mount part intended for reflow assembly. The supplier device package is TSOT-23-8.

ADI lists the ADM1172-1AUJZ-RL7 as Active with a ROHS3 compliance rating.

Frequently asked questions

Can I substitute ADM1172-1AUJZ-RL7 with ADM1172-2AUJZ-RL7?

The '-1' variant features auto retry after a fault, while the '-2' variant latches off and requires a power cycle or enable toggle to recover. Both share the same pinout, package, and programmable features, so they are footprint-compatible. Choose the variant based on whether your system needs automatic recovery (auto retry) or prefers a latched fault for diagnostic clarity.

Is ADM1172-1AUJZ-RL7 compatible with 3.3V logic?

Yes, the I²C interface operates from the same 2.7V to 16.5V supply rail, so it is directly compatible with 3.3V logic levels without additional level shifting.

How do I program the current limit on ADM1172-1AUJZ-RL7?

The current limit is set by selecting an external sense resistor value between the VCC and SENSE pins. The controller regulates the voltage across this resistor to a typical 26 mV threshold. Refer to the datasheet for the resistor calculation formula based on your desired load current.