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LP2985AIM5-4.0

Public Made by Adom

by adom

Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LP2985AIM5-4.0

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

LP2985AIM5-4.0 from Texas Instruments, in a SOT-23-5. 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 VIN power_in Input supply pin; the datasheet requires a capacitor of 1µF or larger from this pin to ground, with a supply input range of 2.5V to 16V for the new chip.
2 GND power_in Ground reference pin for the regulator.
3 ON/OFF input Enable pin: driving it high enables the LDO and driving it low disables it, with thresholds given in the Electrical Characteristics table; tie to VIN if unused.
4 BYPASS bidirectional Noise bypass pin; an external capacitor between BYPASS and ground reduces reference voltage noise (the application circuit uses 10 nF), and the BYPASS pin voltage is limited to 3 V maximum for the new chip.
5 VOUT power_out Regulator output; the datasheet requires a nominal output capacitance greater than 2.2µF from this pin to ground (effective capacitance above 1µF after 50% derating).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: LP2985AIM5-4.0
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: lp2985aim5-4-0-etched.step / lp2985aim5-4-0-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lp2985aim5-4-0.step / lp2985aim5-4-0.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (48 pp, sha256 4ed752a80523dfe4, retrieved 2026-10-08, 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-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