GM7401ARZ-3.3-R7 from GONGMOSEMI, in a SO-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	NC	unconnected	No internal connection; float in the application.
2	VIN	power_in	Power supply input; electrical characteristics are specified with VIN = MAX((VOUT + 1 V), 3.5 V), and the absolute maximum input voltage is 45 V.
3	TEMP	output	Temperature monitor pin providing an unbuffered PTAT voltage of 657 mV typical with a 2.2 mV/°C temperature sensitivity.
4	GND	power_in	Ground reference for the device.
5	TRIM	passive	Output voltage trim pin; with a 10 kΩ potentiometer the output adjustment range is listed as ±3 ±6 %.
6	VOUT	power_out	Voltage reference output, rated for +/-10 mA output drive (at low output impedance) with internal short-circuit current protection.
7	NC	unconnected	No internal connection; float in the application.
8	NC	unconnected	No internal connection; float in the application.

Key specifications

Parameter	Value
Manufacturer	GONGMOSEMI
Package	SO-8
Category	Power Management (PMIC)
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
Output voltage accuracy (Grade A)	VO	-0.04		0.04	%	Grade A	5
Temperature coefficient (Grade A, SOIC)	TCVO		1.5	3	ppm/°C	Grade A, 8-pin SOIC, −40°C < TA < +125°C, 0°C < TA < +70°C	5
Minimum input-output dropout	VDO			0.2	V	VOUT = 3.3V, 4.096V	5
Line regulation	∆VO/∆VIN		15	25	ppm/V	VIN = 4.0 V to 50 V, −40°C < TA < +125°C	5
Line regulation	∆VO/∆VIN		15	30	ppm/V	VIN = 4.0 V to 50 V, −55°C < TA < +125°C	5
Load regulation	∆VO/∆ILOAD		15	45	ppm/mA	ILOAD = 0 mA to 10 mA, −40°C < TA < +125°C, VIN = 10.0 V	5
Load regulation	∆VO/∆ILOAD		15	50	ppm/mA	ILOAD = 0 mA to 10 mA, −55°C < TA < +125°C, VIN = 10.0 V	5
Quiescent current	IIN		1.2		mA	No load, −55°C < TA < +125°C	5
Output voltage noise	eN p-p		2		ppm p-p	0.1 Hz to 10.0 Hz	5
Output voltage noise density	eN		187		nV/√Hz	1 kHz, VOUT = 3.3V	5
Turn-on settling time	tR		800		µs		5
Long-term stability	ΔVOUT_LTD		60		ppm	1000 hours	5
Output voltage hysteresis	∆VOUT_HYS		50		ppm		5
Power supply rejection ratio	PSRR		-75		dB	fIN = 10 kHz	5
Short-circuit current	ISC		30		mA		5
Output adjustment range	∆VTRIM		3	6	%	POT = 10 kΩ	5
TEMP pin output voltage	VTEMP		657		mV		5
Temperature sensitivity of TEMP pin	TCVTEMP		2.2		mV/°C		5
Input voltage (absolute maximum)				45	V		4
Storage temperature range		-65		150	°C		4
Operating temperature (SOIC and MSOP)		-55		125	°C		4
Junction temperature		-65		150	°C		4
Lead temperature, soldering				300	°C	60 s	4
Thermal resistance junction-to-ambient	θJA		130		°C/W	8-pin SOIC, worst case, surface-mount soldered to PCB	4
Thermal resistance junction-to-case	θJC		43		°C/W	8-pin SOIC	4
Supply voltage range	VIN	3.5		40	V	宽电源电压范围	1
Output drive current	IOUT	-10		10	mA	低输出阻抗条件下	1
Operating temperature range (ARZ)		-40		125	°C	GM7401ARZ-3.3-R7, 8-pin SO	14

CAD (KiCad official)

Symbol: GM7401ARZ-3.3-R7
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SO-8 (KiCad packages3D, STEP)
3D model files: gm7401arz-3-3-r7-etched.step / gm7401arz-3-3-r7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gm7401arz-3-3-r7.step / gm7401arz-3-3-r7.glb are the bare package body.

Provenance

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

Datasheet: GONGMOSEMI datasheet (14 pp, sha256 9d56523ce2216a57, retrieved 2026-11-05, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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

GM7401ARZ-3.3-R7

Verified GM7401ARZ-3.3-R7

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3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

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