component
LR7125-M
Public Made by Adomby adom
LR Linear Voltage Regulators (LDO), SOT-89-3. 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
markdownLR7125-M
LR · Linear Voltage Regulators (LDO) · SOT-89-3
LR7125-M from LR, 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 | VSS | power_in | Ground pin, which is the GND reference of the regulator (shown as VSS in the pin drawing and GND in the typical circuit). |
| 2 | VIN | power_in | Regulator input supply; the datasheet gives an absolute maximum of 32V and a recommended input voltage up to 24V, with a 10uF input capacitor in the typical circuit. |
| 3 | VOUT | power_out | Regulated fixed-voltage output delivering up to 50mA with a 10uF output capacitor in the typical circuit. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LR |
| Package | SOT-89-3 |
| Category | Power Management ICs |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
LR7125-M - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
lr7125-m-etched.step/lr7125-m-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lr7125-m.step/lr7125-m.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LR datasheet (11 pp, sha256
4caeff5b3251f8f1, retrieved 2026-10-27, 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-sonnet-5-5(text+vision), consensusclaude-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).