component
GR7550HS
Public Made by Adomby adom
GR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownGR7550HS
GR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3
GR7550HS from GR, in a SOT-23-3. 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), the reference node for the regulator. |
| 2 | VOUT | power_out | Chip output terminal delivering the regulated voltage; for the GR7550H it is 5.0 V nominal with ±3% tolerance and 30 mA typical output current at VIN = 7 V. |
| 3 | VIN | power_in | Startup input terminal (启动输入端) supplying the regulator; the selection table rates the input at 25 V maximum and the absolute maximum input voltage is 28 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GR |
| Package | SOT-23-3 |
| 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 | |||
| Operating temperature | Tw | -25 | 80 | ℃ | 2 | ||
| Storage temperature | Tc | -50 | 125 | ℃ | 2 | ||
| Soldering temperature | Th | 260 | ℃ | 10s | 2 |
CAD (KiCad official)
- Symbol:
GR7550HS - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
gr7550hs-etched.step/gr7550hs-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);gr7550hs.step/gr7550hs.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GR datasheet (9 pp, sha256
a1fb551d7ac7b0ec, 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, primaryclaude-haiku-5-5(text), consensusclaude-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).