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Contents

README

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GM1400ARHZ-R7

GONGMOSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · MSOP-8

GM1400ARHZ-R7 from GONGMOSEMI, in a MSOP-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 VOUT power_out Regulated output voltage; bypass VOUT to GND with a 2.2 µF or larger capacitor.
2 SENSE input Sense (feedback) input connected to the load; an external resistor divider can set the output above the fixed voltage, and the SENSE pin voltage is 1.22 V for this variant.
3 BYP/NC unconnected Not connected; if this function is not used, do not connect this pin to ground.
4 GND power_in Ground.
5 EN input Enable input: high turns the regulator on and low turns it off; tie EN to VIN for automatic start-up.
6 NC/SS input Soft-start pin: an external capacitor sets the soft-start time (SSTIME = 500 µs + 0.6 × CSS, CSS in farads); leave open for 500 µs typical start-up and do not ground this pin.
7 BYP/NC unconnected Not connected; if this function is not used, do not connect this pin to ground.
8 VIN power_in Regulator input supply, 1.9 V to 40 V; bypass VIN to GND with a 2.2 µF or larger capacitor.

Key specifications

Parameter Value
Manufacturer GONGMOSEMI
Package MSOP-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
Input voltage range VIN 1.9 40 V 6
Operating supply current IGND 22 140 µA IOUT= 0 µA 6
Operating supply current IGND 70 200 µA IOUT = 10mA 6
Operating supply current IGND 460 960 µA IOUT = 300 mA 6
Shutdown current IGND-SD 1.1 15 µA EN = GND,VIN = 40 V 6
Output voltage accuracy VOUT -1.2 1.2 % 100 µA < IOUT < 300 mA,VIN =(VOUT + 1 V)至 40 V,TJ = -40°C 至+125°C 6
Output voltage accuracy VOUT -1.6 1.6 % 100 µA < IOUT < 300 mA,VIN =(VOUT + 1 V)至 40 V 6
Line regulation ΔVOUT/ΔVIN -0.015 0.015 %V VIN =(VOUT + 1 V)至 40 V 6
Load regulation ΔVOUT/ΔIOUT 0.002 0.004 %/mA IOUT = 1 mA 至 300 mA 6
SENSE input bias current SENSE I-BIAS 10 300 nA 100 µA < IOUT < 300 mA,VIN =(VOUT + 1V)至 40V 6
Current limit threshold ILIMIT 350 450 600 mA 6
UVLO rising threshold (input voltage rising) UVLORISE 1.74 1.89 V 6
UVLO falling threshold (input voltage falling) UVLOFALL 1.4 1.64 V 6
EN logic high threshold ENHIGH 1.12 1.2 1.28 V 1.9V ≤ VIN ≤ 40 V 6
EN logic low threshold ENLOW 1.02 1.1 1.18 V 1.9V ≤ VIN ≤ 40 V 6
EN input leakage current IEN-LKG 0.04 1 µA EN = VIN 或 GND 6
VIN to GND -0.3 50 V 5
VOUT to GND -0.3 V 5
EN to GND -0.3 50 V 5
SENSE to GND -0.3 6 V 5
SS to GND -0.3 V 5
Storage temperature range -65 150 °C 5
Operating ambient temperature range (TA) TA -55 125 °C 5
Operating junction temperature range (TJ) TJ -55 150 °C 5
Thermal resistance, junction to ambient, 8-pin MSOP θJA 52.7 °C/W worst case, device soldered to circuit board, surface-mount package 5

CAD (KiCad official)

  • Symbol: GM1400ARHZ-R7
  • Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
  • 3D model: MSOP-8 (KiCad packages3D, STEP)
  • 3D model files: gm1400arhz-r7-etched.step / gm1400arhz-r7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gm1400arhz-r7.step / gm1400arhz-r7.glb are the bare package body.

Provenance

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

  • Datasheet: GONGMOSEMI datasheet (18 pp, sha256 953c3cdbaa281eee, retrieved 2026-10-18, 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