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LR7125-M

Public Made by Adom

by adom

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

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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LR7125-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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lr7125-m.step / lr7125-m.glb are 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, 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