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Contents

README

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LM2937IMPX-10

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-4

LM2937IMPX-10 from Texas Instruments, in a SOT-223-4. 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 INPUT input Unregulated voltage input; VIN must stay between VOUT + 1 V and 26 V continuous, with 60 V transients allowed for up to 100 ms.
2 GND power_in Ground reference pin for the regulator.
3 OUTPUT output Regulated voltage output that requires an output capacitor for stability, and the device is stable for capacitor ESR below 3 Ω.
4 TAB power_in Thermal and ground tab internally connected to pin 2 (GND); connect it to GND or leave it floating, and do not connect it to any potential other than GND.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-223-4
Category Power Management (PMIC)
Pins 4

CAD (KiCad official)

  • Symbol: LM2937IMPX-10
  • Footprint: Package_TO_SOT_SMD:SOT-223
  • 3D model: SOT-223-4 (KiCad packages3D, STEP)
  • 3D model files: lm2937impx-10-etched.step / lm2937impx-10-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2937impx-10.step / lm2937impx-10.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (35 pp, sha256 de6b9175f075271f, retrieved 2026-10-08, tier: lcsc)
  • 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