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Contents

README

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LM2937ET-5.0

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-220

LM2937ET-5.0 from Texas Instruments, in a TO-220. 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 power_in Unregulated voltage input; the datasheet gives VIN as VOUT + 1 V minimum to 26 V maximum in recommended operation, with a 60 V transient limit (t ≤ 100 ms).
2 GND power_in Ground, and also the thermal tab connection; the tab is internally connected to this pin and should be tied to GND or left floating, never to any other potential.
3 OUTPUT power_out Regulated voltage output that requires an output capacitor to maintain stability; the datasheet's Detailed Design Procedure section gives the capacitor details.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TO-220
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: LM2937ET-5.0
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: lm2937et-5-0-etched.step / lm2937et-5-0-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2937et-5-0.step / lm2937et-5-0.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 2026-10-10, 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