component

GR7550H

Public Made by Adom

by adom

GR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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GR7550H

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

GR7550H 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, the common return for the regulator.
2 VIN power_in Input pin for the regulator; the absolute maximum input voltage is 28 V and the GR7550H input voltage rating is 25 V.
3 VOUT power_out Regulated output pin; for the GR7550H the output is 5.0 V (4.85 V to 5.15 V) with at least 20 mA output current at VIN = 7 V and IOUT = 10 mA.

Key specifications

Parameter Value
Manufacturer GR
Package SOT-89-3
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 4.85 5 5.15 V VIN＝7V，IOUT＝10mA 4
Output current IOUT 20 30 mA VIN＝7V 4
Load regulation ΔVOUT 15 100 mV VIN＝7V，1mA≤IOUT≤30mA 4
Quiescent current ISS 2 5 µA VIN＝24V，空载 4
Input voltage VIN 25 V 4
Maximum input voltage VIN 28 V 2
Power dissipation PD 300 mW SOT89-3 2
Operating temperature Tw -25 80 ℃ 2
Storage temperature Tc -50 125 ℃ 2
Soldering temperature Th 260 ℃ 10s 2

CAD (KiCad official)

  • Symbol: GR7550H
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: gr7550h-etched.step / gr7550h-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gr7550h.step / gr7550h.glb are the bare package body.

Provenance

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

  • Datasheet: GR datasheet (8 pp, sha256 d75a091386d85582, 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, 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