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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs ap1509-50sg-13: 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
ap1509-50sg-13-etched.fit.json ap1509-50sg-13: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ap1509-50sg-13-etched.glb ap1509-50sg-13: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ap1509-50sg-13-etched.step ap1509-50sg-13: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ap1509-50sg-13.glb Publish 0.1.0 · Ray
ap1509-50sg-13.kicad_mod Publish 0.1.0 · Ray
ap1509-50sg-13.kicad_sym Publish 0.1.0 · Ray
ap1509-50sg-13.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
ap1509-50sg-13.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 ap1509-50sg-13: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md ap1509-50sg-13: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

AP1509-50SG-13

Diodes Incorporated · DC-DC Converters · SOP-8

AP1509-50SG-13 from Diodes Incorporated, in a SOP-8. 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 Operating voltage input. Supply pin, recommended 4.5V to 22V (absolute max +24V). Bypass with a bulk input capacitor close to the pin.
2 Output output Switching output from the internal 2A power switch. Connects to the external inductor and Schottky catch diode of the buck converter. Saturation voltage ~1.25V typ at IOUT = 2A.
3 FB input Output voltage feedback control. On the fixed 5V version this pin is internally tied to sense the 5V output; on adjustable versions the internal reference is VFB = 1.23V. Absolute max -0.3 to +18V.
4 SD input ON/OFF shutdown input. Logic low (VIL < 0.6V) enables the regulator; logic high (VIH >= 2.0V) forces standby mode. Absolute max -0.3 to +18V.
5 GND power_in Ground return. Pins 5-8 are all GND and should be tied together to the ground plane to improve thermal dissipation of the SOP-8L package.
6 GND power_in Ground return. Tie together with pins 5, 7, and 8 to the ground plane.
7 GND power_in Ground return. Tie together with pins 5, 6, and 8 to the ground plane.
8 GND power_in Ground return. Tie together with pins 5, 6, and 7 to the ground plane.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOP-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • AP1509-50SG-13

CAD (KiCad official)

  • Symbol: AP1509-50SG-13
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ap1509-50sg-13-etched.step / ap1509-50sg-13-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ap1509-50sg-13.step / ap1509-50sg-13.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ap1509-50sg-13.step 122 KB You want the bare part, or you mark your own boards.
ap1509-50sg-13-etched.step 2.9 MB You want the part with AP1509-50SG-13 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 690 faces against 147 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: Diodes Incorporated datasheet (12 pp, sha256 736e1f216a8fa351, 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