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Contents

README

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LP2985IM5-3.3

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

LP2985IM5-3.3 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 for 2.5V to 16V input voltage range providing power to low-dropout linear regulator capable of 150mA output current; requires 1µF or larger bypass capacitor to ground.
2 GND power_in Ground reference return for input, output, and internal bias circuits.
3 ON/OFF input Active-high enable input with 0.85V typical turn-on threshold and 0.15V turn-off threshold across 0V to 16V operating range; tie to VIN if unused.
4 BYPASS bidirectional Internal bandgap reference bias node connected to feedback network; connect 10nF capacitor to ground to reduce output noise to 30µVRMS specification in 300Hz to 50kHz bandwidth.
5 VOUT output Fixed 3.3V regulated output with ±0.5% tolerance across load current and temperature variation; requires minimum 2.2µF output capacitor to ground.

Key specifications

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

CAD (KiCad official)

  • Symbol: LP2985IM5-3.3
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: lp2985im5-3-3-etched.step / lp2985im5-3-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lp2985im5-3-3.step / lp2985im5-3-3.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 2026-09-26, 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 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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