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Contents

README

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GR7333-A

GR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

GR7333-A from GR, in a SOT-89-3. 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 (芯片接地端) for the SOT89-3 variant.
2 VIN power_in Start-up/input terminal (启动输入端) that accepts the unregulated supply; the datasheet limits the input voltage to 15 V maximum, with an absolute maximum input voltage of 18 V.
3 VOUT power_out Chip output terminal (芯片输出端) delivering the regulated output; for GR7333 the output is 3.3 V nominal (3.201 V to 3.399 V at VIN=4.3 V, IOUT=40 mA) with at least 250 mA output current.

Key specifications

Parameter Value
Manufacturer GR
Package SOT-89-3
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: GR7333-A
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: gr7333-a-etched.step / gr7333-a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gr7333-a.step / gr7333-a.glb are the bare package body.

Provenance

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

  • Datasheet: GR datasheet (7 pp, sha256 bbeb598530dcbb50, retrieved 2026-10-09, 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