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LP3985IM5X-3.3

Public Made by Adom

by adom

Texas Instruments LP3985IM5X 3 3 NOPB Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs lp3985im5x-3-3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
lp3985im5x-3-3-etched.fit.json lp3985im5x-3-3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lp3985im5x-3-3-etched.glb lp3985im5x-3-3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lp3985im5x-3-3-etched.step lp3985im5x-3-3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
lp3985im5x-3-3.glb Publish 0.1.0 · Ray
lp3985im5x-3-3.kicad_mod Publish 0.1.0 · Ray
lp3985im5x-3-3.kicad_sym Publish 0.1.0 · Ray
lp3985im5x-3-3.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
lp3985im5x-3-3.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json lp3985im5x-3-3: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md lp3985im5x-3-3: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

LP3985IM5X-3.3

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

LP3985IM5X-3.3 from Texas Instruments, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 IN power_in Input voltage of the LDO. Accepts 2.5 V to 6 V (abs max 6.5 V). Requires a 1-µF input capacitor to GND.
2 GND power_in Common ground reference for the device. All voltages are referenced to this pin.
3 EN input Enable input, active high. VIH ≥ 1.4 V enables the regulator; VIL ≤ 0.4 V places it in shutdown (<1.5 µA IQ). Must not be left floating; range 0 V to VIN.
4 BYPASS passive Optional noise-reduction bypass capacitor node (typically 0.01 µF to GND). Reduces output noise without slowing load transient response; leave open if unused.
5 OUT power_out Regulated 3.3-V output of the LDO. Delivers up to 150 mA continuous; requires a 1-µF ceramic or high-quality tantalum output capacitor to GND for stability.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • LP3985IM5X-3.3
  • LP3985IM5X-3.3ITL-3.3
  • LP3985IM5X-3.3ITLX-3.3

The extractor listed these alongside LP3985IM5X-3.3, but they are different parts with different electrical characteristics. Do not order them as substitutes.

  • LP3985IM5X-3.3IM5-3.3

CAD (KiCad official)

  • Symbol: LP3985IM5X-3.3
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: lp3985im5x-3-3-etched.step / lp3985im5x-3-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lp3985im5x-3-3.step / lp3985im5x-3-3.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lp3985im5x-3-3.step 85 KB You want the bare part, or you mark your own boards.
lp3985im5x-3-3-etched.step 2.6 MB You want the part with LP3985IM5X-3.3 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 623 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Texas Instruments datasheet (33 pp, sha256 7b66304d9cd4ba89, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF