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docs spx5205m5-l: 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 spx5205m5-l: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md spx5205m5-l: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
spx5205m5-l-etched.fit.json spx5205m5-l: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
spx5205m5-l-etched.glb spx5205m5-l: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
spx5205m5-l-etched.step spx5205m5-l: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
spx5205m5-l.glb Publish 0.1.0 · Ray
spx5205m5-l.kicad_mod Publish 0.1.0 · Ray
spx5205m5-l.kicad_sym Publish 0.1.0 · Ray
spx5205m5-l.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
spx5205m5-l.step Publish 0.1.0 · Ray

SPX5205M5-L

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

SPX5205M5-L 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 Unregulated input supply, +2.5 V to +16 V recommended (absolute max -20 V to +20 V, reverse-battery protected). Bypass with a 1 uF capacitor close to the pin.
2 GND power_in Device ground return. Ground pin current ranges from ~70 uA at IL=100 uA up to ~1.3 mA at IL=150 mA.
3 EN input Active-high enable input. VIH >= 2.0 V turns the regulator ON; VIL <= 0.4 V places it in zero-off-mode. Input range 0 V to VIN (abs max -20 V to +20 V). May be tied directly to VIN for always-on operation.
4 BYP/ADJ bidirectional On the adjustable version (SPX5205M5-L/TR, top mark H1WW) this pin is ADJ: feedback node tied to the R1/R2 divider from VOUT to set VOUT = 1.235 V x (1 + R1/R2); R2 must be > 10 kohm (22-47 kohm recommended). On fixed-output variants it is BYP: exposes the internal 1.235 V reference for a 10 nF noise-bypass capacitor to GND, dropping output noise to ~40 uVRMS. Larger CBYP slows start-up; may be left open if noise is not critical.
5 VOUT power_out Regulated LDO output, 150 mA max, 1% initial accuracy. Requires an output capacitor for stability (1 uF tantalum or 2.2 uF aluminum electrolytic typical). Current limited to ~360-500 mA and thermally protected.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • SPX5205M5-L/TR
  • SPX5205M5-L-1-2/TR
  • SPX5205M5-L-1-8/TR
  • SPX5205M5-L-2-5/TR
  • SPX5205M5-L-3-0/TR
  • SPX5205M5-L-3-3/TR
  • SPX5205M5-L-5-0/TR

CAD (KiCad official)

  • Symbol: SPX5205M5-L
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: spx5205m5-l-etched.step / spx5205m5-l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); spx5205m5-l.step / spx5205m5-l.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
spx5205m5-l.step 85 KB You want the bare part, or you mark your own boards.
spx5205m5-l-etched.step 2.0 MB You want the part with SPX5205M5-L already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 496 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 (8 pp, sha256 421c6d60c0a5736f, 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