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Contents

README

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GR5300A18M3G

GR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23

GR5300A18M3G from GR, in a SOT-23. 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 GND power_in Chip ground terminal; the datasheet specifies no separate limit for this pin.
2 VOUT power_out Chip output terminal; for the GR5300A18M3G the output is 1.8 V (1.755 V to 1.845 V at VIN=5 V, IOUT=1 mA) with output current of at least 60 mA and a dropout of typically 100 mV at 1 mA.
3 VIN power_in Input terminal (datasheet label 启动输入端); the maximum input voltage is 10 V in the electrical characteristics and 12 V as the absolute maximum rating.

Key specifications

Parameter Value
Manufacturer GR
Package SOT-23
Category Power Management (PMIC)
Pins 3

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 VOUT 1.755 1.8 1.845 V VIN=5V, IOUT=1mA 2
Output voltage tolerance -2.5 2.5 % 1
Output current IOUT 60 100 mA VIN=5V 2
Load regulation ΔVOUT 60 150 mV VIN=5V, 1mA≤IOUT≤50mA 2
Dropout voltage VDIF 100 mV IOUT=1mA 2
Quiescent current ISS 2 3 µA VIN=5V, no load 2
Line regulation ΔVOUT /(ΔVIN * VOUT) 0.2 %/V 3V≤VIN≤10V, IOUT=1mA 2
Input voltage VIN 10 V 2
Output voltage temperature coefficient ΔVOUT /ΔTa 0.45 mV/℃ VIN=5V, IOUT=10mA, 0℃≤Ta≤70℃ 2
Maximum input voltage VIN 12 V 2
Power dissipation PD 200 mW 2
Operating temperature Tw -25 70 ℃ 2
Storage temperature Tc -50 125 ℃ 2
Soldering temperature Th 260 ℃ 10s 2

CAD (KiCad official)

  • Symbol: GR5300A18M3G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: gr5300a18m3g-etched.step / gr5300a18m3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gr5300a18m3g.step / gr5300a18m3g.glb are the bare package body.

Provenance

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

  • Datasheet: GR datasheet (5 pp, sha256 f3b3f3ed79681aed, 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