ADM1170-1AUJZ-RL7 from Analog Devices, in a TSOT-23-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	TIMER	passive	Timer input pin where an external capacitor sets the initial timing delay (272.9 ms/µF) and circuit breaker delay (21.7 ms/µF), and the GATE turns off when the pin is pulled beyond the upper threshold.
2	GND	power_in	Chip ground pin.
3	SS	passive	Soft start pin where an external capacitor to GND sets the ramp rate of the current limit reference.
4	ON	input	Enable input to a comparator with a 1.3 V low-to-high threshold and 80 mV hysteresis plus glitch filter; low resets the device and high enables it.
5	GATE	output	Gate output pin with an internal charge pump providing 12 µA pull-up to drive an external N-channel MOSFET, controlling the FET to maintain constant load current in overcurrent.
6	SENSE−	input	Current limit sense input pin used with a sense resistor to SENSE+, maintaining the sense voltage at 50 mV in an overcurrent condition.
7	SENSE+	input	Current limit sense input pin on the supply side of the sense resistor, where connecting it to SENSE− disables the circuit breaker limit.
8	VCC	power_in	Positive supply input pin operating from 2.7 V to 16.5 V, with an undervoltage lockout circuit that resets the device below the UVLO limit.

Key specifications

Parameter	Value
Manufacturer	Analog Devices
Package	TSOT-23-8
Category	Power Management ICs
Pins	8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Operating Voltage Range	VCC	2.7		16.5	V		3
Supply Current	ICC		0.65	0.8	mA		3
Undervoltage Lockout	VUVLO	2.4	2.525	2.65	V	VCC rising	3
ON Input Current	IINON	-1	0	1	µA		3
ON Threshold	VON	1.22	1.3	1.38	V	ON rising	3
Hot Swap Operating Range		1.6		16.5	V		3
SENSE Input Current	IINSENSE	-160	-65	13	µA	VSENSE+ = 1.6 V	3
SENSE Input Current	IINSENSE	5	10	15	µA	VSENSE+ ≥ 2.2 V	3
Circuit Breaker Limit Voltage	VCB	26	50	77	mV	VCB = (VSENSE+, VSENSE−), VSENSE+ = 1.6 V	3
Circuit Breaker Limit Voltage	VCB	44	50	56	mV	VCB = (VSENSE+, VSENSE−), VSENSE+ ≥ 2.2 V	3
GATE Drive Voltage	VGATE	4.6	7.5	10	V	VGATE − VCC, VCC = 3.0 V	3
GATE Drive Voltage	VGATE	6	8	12	V	VGATE − VCC, VCC = 3.3 V	3
GATE Drive Voltage	VGATE	8.75	10	12	V	VGATE − VCC, VCC = 5 V	3
GATE Drive Voltage	VGATE	7.5	9	12	V	VGATE − VCC, VCC = 12 V	3
GATE Drive Voltage	VGATE	5.56	8	12	V	VGATE − VCC, VCC = 15 V	3
GATE Pull-Up Current		-6.5	-12	-14.5	µA	VGATE = 0 V	3
TIMER Pull-Up Current (initial)	ITIMERUP	-2	-5	-8.5	µA	Initial cycle, VTIMER = 1 V	3
TIMER Pull-Up Current (fault)	ITIMERUP	-25	-60	-100	µA	During current fault, VTIMER = 1 V	3
TIMER Threshold High	VTIMERH	1.22	1.3	1.38	V	TIMER rising	3
TIMER Threshold Low	VTIMERL	0.15	0.2	0.25	V	TIMER falling	3
UVLO Hysteresis	VUVLOHYS		40		mV		3
ON Threshold Hysteresis	VONHYST		50		mV		3
GATE Pull-Down Current			4		mA	VGATE = 3 V, VCC = 5 V, ON (ON-CLR) = low	3
GATE Pull-Down Current			25		mA	VGATE = 3 V, VCC < UVLO	3
TIMER Pull-Down Current	ITIMERDN	2		3.5	µA	After Cct breaker tip, VTIMER = 1 V	3
TIMER Pull-Down Current	ITIMERDN		100		µA	Normal operation, VTIMER = 1 V	3
Soft Start Pull-Up Current			10		µA		3
Current Setting Gain	VSS/VSENSE		20		V/V		3
Soft Start Completion Voltage			1		V		3
SS Pull-Down Current			50		µA	During fault	3
Turn-Off Time (TIMER Rise to GATE Fall)	tOFF		2		µs	VTIMER = 0 V to 2 V step, VCC = VON = 5 V	3
Turn-Off Time (ON Fall to GATE Fall)	tOFF		40		µs	VON = 5 V to 0 V step, VCC = 5 V	3
Turn-Off Time (VCC Fall to IC Reset)	tOFF		40		µs	VCC = 5 V to 2 V step, VON = 5 V	3
VCC Pin	VCC	-0.3		20	V		4
SENSE+ / SENSE− Pin		-0.3		20	V		4
SENSE+ Pin − SENSE− Pin		-5		5	V		4
TIMER Pin		-0.3			V	max is VCC + 0.3 V	4
ON (ON-CLR) Pin		-0.3		20	V		4
SS Pin		-0.3			V	max is VCC + 0.3 V	4
GATE Pin		-0.3			V	max is VCC + 11 V	4
Storage Temperature Range		-65		125	°C		4
Operating Temperature Range		-40		85	°C		4
Lead Temperature				300	°C	10 sec	4
Junction Temperature				150	°C		4
Thermal Resistance	θJA		152.9		°C/W	8-Lead TSOT	4

CAD (KiCad official)

Symbol: ADM1170-1AUJZ-RL7
Footprint: Package_TO_SOT_SMD:TSOT-23-8
3D model: TSOT-23-8 (KiCad packages3D, STEP)
3D model files: adm1170-1aujz-rl7-etched.step / adm1170-1aujz-rl7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); adm1170-1aujz-rl7.step / adm1170-1aujz-rl7.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Analog Devices datasheet (16 pp, sha256 360268fd3d51d1f1, retrieved 2026-10-30, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

ADM1170-1AUJZ-RL7

Verified ADM1170-1AUJZ-RL7

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README