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GR2188A22M3G

Public Made by Adom

by adom

GR DC-DC Converters, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)gr2188a22m3gfactory-2.0.0extractor-text
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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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GR2188A22M3G

GR · DC-DC Converters · SOT-23

GR2188A22M3G 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.
2 Lx passive Inductor connection (switch node); the datasheet gives a 1000 mA maximum Lx current and a 6 V maximum voltage on Lx and VOUT.
3 VOUT power_out Voltage output terminal, fixed at 2.2 V ±2.5% for this variant, with a 6 V maximum rating on VOUT.

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
Input voltage (VIN) VIN 0.9 5 V 4
Output voltage accuracy (printed ±2.5%) VOUT -2.5 2.5 % 2
Maximum voltage on VOUT and LX pins Vmax 6 V Supplied to VOUT and LX pins 3
Maximum LX pin current ILXmax 1000 mA LX pin 3
Maximum power dissipation PD 250 mW SOT23-3 package 3
Operating temperature range Tw -20 70 ℃ 3
Storage temperature range Tc -40 150 ℃ 3
Soldering temperature Th 260 ℃ 10 s 3
Startup voltage VSTART 0.75 1 V ILOAD=1mA, VIN: 0→2V 4
Hold voltage VHOLD 0.5 V ILOAD=1mA, VIN: 2→0V 4
Quiescent current (Iq1) Iq1 0.1 uA VIN=2V, VOUT=VOUT(T)+0.5V 4
Quiescent current (Iq2) Iq2 2.5 uA 4
Shutdown quiescent current Istb 0.4 uA VIN=1.5V, VCE=0V, VOUT=Open 4
Enable-low current ICEL 0.1 uA VIN=VOUT=2V, VCE=0V 4
Enable-high current ICEH 0.01 uA VIN=VOUT=VCE=2V 4
Enable high threshold voltage VCEH 0.8 V VIN=1.5V, VOUT=VOUT(T)*0.98, VCE=0→VIN, OSC starts 4
Enable low threshold voltage VCEL 0.4 V VIN=1.5V, VOUT=VOUT(T)*0.98, VCE=0.6→GND, OSC stops 4
Lx switch on-resistance RON_SW 2.5 Ω VIN=1.5V, VOUT=2.7V 4
Synchronous rectifier on-resistance ROP_SW 2.8 Ω VIN=2.7V, VCE=0, IOUT=200mA 4
Lx switching frequency f 250 kHz VIN=1.5V, VOUT=VOUT(T)*0.98 4
Efficiency η 80 % VIN=1.5V, Iout=10mA 4

CAD (KiCad official)

  • Symbol: GR2188A22M3G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: gr2188a22m3g-etched.step / gr2188a22m3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gr2188a22m3g.step / gr2188a22m3g.glb are the bare package body.

Provenance

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

  • Datasheet: GR datasheet (9 pp, sha256 7f53c339422b1063, 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-sonnet-5-5 (text+vision), consensus claude-opus-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