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LP3874EMPX-5.0

Public Made by Adom

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Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LP3874EMPX-5.0

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-5

LP3874EMPX-5.0 from Texas Instruments, in a SOT-223-5. 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 SD input Shutdown input: pulling SD low puts the regulator in shutdown with typically 10-nA quiescent current, and the shutdown input voltage is limited to -0.3 V to 7 V in recommended operation (7.5 V survival).
2 IN power_in Input voltage pin, specified for 2.5 V to 7 V supply (7.5 V survival), with VIN at least VOUT(NOM) + VDROPOUT or 2.5 V, whichever is greater.
3 OUT power_out Regulated output pin, rated for a maximum DC output current of 0.8 A and an output voltage survival range of -0.3 V to 6 V; the internal PMOS body diode from IN to OUT can carry 200 mA DC.
4 SENSE input Remote voltage sense input that improves regulation at remote loads; its maximum voltage is given in the Absolute Maximum Ratings only as a VOUT-referenced value that is not fully legible in the extracted text.
5 GND power_in Ground pin; ground pin current is typically 6 mA at 0.8-A load current.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-223-5
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: LP3874EMPX-5.0
  • Footprint: Package_TO_SOT_SMD:SOT-223-5
  • 3D model: SOT-223-5, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.45 mm nominal SOT height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
  • 3D model files: lp3874empx-5-0-etched.step / lp3874empx-5-0-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lp3874empx-5-0.step / lp3874empx-5-0.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (27 pp, sha256 b85de2cb47e9b1e2, retrieved 2026-10-11, 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