component
GM7401BRZ-3.3-R7
Public Made by Adomby adom
GONGMOSEMI Voltage Reference, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownGM7401BRZ-3.3-R7
GONGMOSEMI · Voltage Reference · SO-8
GM7401BRZ-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; leave floating in the application. |
| 2 | VIN | power_in | Power supply input with a stated range of 3.5 V to 40 V and an absolute maximum input voltage of +45 V. |
| 3 | TEMP | output | Temperature monitor pin that outputs an unbuffered PTAT voltage (657 mV typical) with a temperature sensitivity of 2.2 mV/°C. |
| 4 | GND | power_in | Ground reference pin for the device. |
| 5 | TRIM | passive | Output voltage trim pin that adjusts VOUT up or down, with an adjustment range of ±3% typical and ±6% maximum at POT = 10 kΩ. |
| 6 | VOUT | power_out | Reference voltage output (3.3 V for this variant) with ±10 mA output drive capability and built-in output short-circuit current protection. |
| 7 | NC | unconnected | No internal connection; leave floating in the application. |
| 8 | NC | unconnected | No internal connection; leave floating 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 B) | VO | -0.1 | 0.1 | % | Grade B | 5 | |
| Temperature coefficient (Grade B) | TCVO | 4 | 8 | ppm/°C | Grade B | 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 | |
| Output adjustment range | ∆VTRIM | -6 | 6 | % | POT = 10 kΩ | 5 | |
| Input voltage (absolute maximum) | VIN | 45 | V | 4 | |||
| Storage temperature range | TSTG | -65 | 150 | °C | 4 | ||
| Operating temperature range (SOIC and MSOP) | TA | -55 | 125 | °C | SOIC and MSOP | 4 | |
| Junction temperature | TJ | -65 | 150 | °C | 4 | ||
| Pin temperature, soldering | 300 | °C | 60 s | 4 | |||
| Supply voltage range | VIN | 3.5 | 40 | V | Wide supply voltage range (product features) | 1 | |
| Output drive current | IOUT | -10 | 10 | mA | Low output impedance conditions | 1 | |
| Operating temperature range (this ordering code) | TA | -40 | 125 | °C | GM7401BRZ-3.3-R7, 8-pin SO | 14 | |
| Quiescent current | IIN | 1.2 | mA | No load, −55°C < TA < +125°C | 5 | ||
| Minimum input-output differential voltage | VDO | 0.2 | V | VOUT = 3.3V, 4.096V | 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 | ΔVOUT_HYS | 50 | ppm | 5 | |||
| Power supply rejection ratio | PSRR | -75 | dB | fIN = 10 kHz | 5 | ||
| Short-circuit current | ISC | 30 | mA | 5 | |||
| TEMP pin output voltage | VTEMP | 657 | mV | 5 | |||
| TEMP pin temperature sensitivity | TCVTEMP | 2.2 | mV/°C | 5 | |||
| Junction-to-ambient thermal resistance (8-pin SOIC) | θJA | 130 | °C/W | Worst case, device soldered on board, SOIC-8 | 4 | ||
| Junction-to-case thermal resistance (8-pin SOIC) | θJC | 43 | °C/W | SOIC-8 | 4 |
CAD (KiCad official)
- Symbol:
GM7401BRZ-3.3-R7 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
gm7401brz-3-3-r7-etched.step/gm7401brz-3-3-r7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);gm7401brz-3-3-r7.step/gm7401brz-3-3-r7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GONGMOSEMI datasheet (14 pp, sha256
9d56523ce2216a57, retrieved 2026-10-17, 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, primaryclaude-haiku-5-5(text), consensusclaude-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).