component

SPX3819M5-L-1-8

Public Made by Adom

by adom

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

componentpmicspx3819m5-l-1-8
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs spx3819m5-l-1-8: 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
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 spx3819m5-l-1-8: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md spx3819m5-l-1-8: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
spx3819m5-l-1-8-etched.fit.json spx3819m5-l-1-8: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
spx3819m5-l-1-8-etched.glb spx3819m5-l-1-8: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
spx3819m5-l-1-8-etched.step spx3819m5-l-1-8: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
spx3819m5-l-1-8.glb Publish 0.1.0 · Ray
spx3819m5-l-1-8.kicad_mod Publish 0.1.0 · Ray
spx3819m5-l-1-8.kicad_sym Publish 0.1.0 · Ray
spx3819m5-l-1-8.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
spx3819m5-l-1-8.step Publish 0.1.0 · Ray

SPX3819M5-L-1-8

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

SPX3819M5-L-1-8 from MaxLinear, 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 VIN power_in Supply input. Operating input range +2.5V to +16V (absolute max −20V to +20V). Bypass with a low-ESR input capacitor (typically ≥1µF).
2 GND power_in Device ground return. Typical ground pin current 90µA at IL=100µA, rising to ~6.5mA at IL=500mA.
3 EN input Enable input, CMOS-compatible. Logic high (VIH ≥ 2V) enables the regulator; logic low (VIL ≤ 0.4V) or open shuts it down. May be tied directly to VIN for always-on operation. Input current 0.01µA typ (2µA max at VIL, 3µA typ / 20µA max at VIH).
4 ADJ/BYP input Reference bypass pin on fixed-output versions (this 1.8V variant): connect an optional ~10nF capacitor to GND to significantly reduce output noise (down to ~40µVRMS with CBYP=1µF). Same pin serves as the ADJ feedback input on the adjustable variant, tied to a resistor divider from VOUT (VOUT = 1.235V × [1 + R1/R2]).
5 VOUT power_out Regulated output. Fixed 1.8V (±1% initial tolerance, temperature coefficient 57 ppm/°C typ). Delivers up to 500mA; current limit typ 800mA. Requires an output capacitor for stability (≥1µF tantalum or ≥2.2µF aluminum electrolytic recommended).

Key specifications

Parameter Value
Manufacturer MaxLinear
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • SPX3819M5-L-1-8
  • SPX3819M5-L-1-8/TR
  • SPX3819S-L-1-8
  • SPX3819S-L-1-8/TR
  • SPX3819R2-L-1-8

CAD (KiCad official)

  • Symbol: SPX3819M5-L-1-8
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: spx3819m5-l-1-8-etched.step / spx3819m5-l-1-8-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); spx3819m5-l-1-8.step / spx3819m5-l-1-8.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
spx3819m5-l-1-8.step 85 KB You want the bare part, or you mark your own boards.
spx3819m5-l-1-8-etched.step 2.4 MB You want the part with SPX3819M5-L-1-8 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 593 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: MaxLinear datasheet (13 pp, sha256 f5e32d1d3e36da8f, retrieved 2026-08-17, tier: lcsc)
  • 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