component

AP3441SHE-7B

Public Made by Adom

by adom

Diodes Incorporated Voltage Regulators - DC DC Switching Regulators, DFN2020-8-EP. KiCad symbol, footprint and 3D as used on Adom boards; pin functions from the manufacturer datasheet.

componentpower management (pmic)ap3441she-7bboard-derived

Verified AP3441SHE-7B

by Claude, at Caleb Taylor's request · last 27 Oct 2026 · 1 record, 3 retired · files match
SymbolFootprint3D modelPins

Verification log 4 records

27 Oct 2026Claude, at Caleb Taylor's requestValidated against Diodes Incorporated's AP3441/L datasheet (DS39754 Rev. 3 - 2, September 2019); 3D model rebuilt to the package drawingfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓Datasheet: the page's LCSC copy is byte-identical (sha256 c159ff21...) to Diodes' current file at diodes.com/datasheet/download/AP3441.pdf, DS39754 Rev. 3 - 2 September 2019; source tier moved to mfr
  • ✓Pins 1-8 match the Pin Descriptions table and the U-DFN2020-8 (Type E) top-view pin assignment (p.1-2); pin 5 renamed nc -> NC; pin 9 (the footprint's centre pad) is the table's EP 'Exposed Pad', named EP
  • ✓Pin types from the table: FB input (was passive), PG open-drain, VIN/PGND/SGND power, NC no_connect, LX power_out (switch node), EN input, EP passive (no internal connection; tie to the ground plane for heat)
  • ✓Descriptions are the Pin Descriptions table wording (p.2), VIN range from p.1; pin 9 described
  • •Footprint vs package outline and Suggested Pad Layout (p.12): 8 pads 0.50 x 0.30 mm on e = 0.50 mm, centres +/-0.90 mm as the suggested layout (Y 0.50, Y2 2.30); pad width 0.30 vs suggested X 0.35, covers b 0.20-0.30; exposed pad 1.05 x 1.75 mm vs E2 0.80-1.00 x D2 1.60-1.80 (suggested Y1 1.00 x X1 1.80); EP-to-pad gap 0.125 mm vs suggested G 0.15; pin 1 top-left as the p.1 top view
  • ✓DigiKey AP3441SHE-7BDITR-ND and Mouser 621-AP3441SHE-7B confirmed as AP3441SHE-7B by Diodes Incorporated (2026-10-27)
  • ✓3D source: tier 1 none (diodes.com part and package-outline pages answer curl (browser headers) and WebFetch with a Cloudflare challenge (HTTP 403); the datasheet links no STEP. No manufacturer STEP retrievable (2026-10-27).) Tier 2 rejected (KiCad DFN-8-1EP_2x2mm_P0.5mm_EP1.05x1.75mm.step: 0.92 mm tall; VDFN-8-1EP_2x2mm_P0.5mm_EP0.9x1.7mm.step: 0.77 mm tall; A 0.50-0.60: both out of tolerance.) Tier 3: model rebuilt with the KiCad 3D model generator (gitlab.com/kicad/libraries/kicad-packages3D-generator, commit e272fcc8) from Diodes Incorporated AP3441/L datasheet DS39754 Rev. 3 - 2, September 2019, Package Outline Dimensions U-DFN2020-8 (Type E), p.12; marking drawing p.11; parameters in provenance/3d-generator-params.yaml; Adom-authored, CC-BY-SA-4.0
  • ✓3D body vs drawing: body 1.98 x 1.98 mm (the generator insets the body by A1 from 2.00), leads reach 2.00: D/E 1.950-2.075: pass; overall height 0.56 mm (etched 0.565): A 0.50-0.60: pass; standoff 0.02, terminal thickness 0.203: A1 0.00-0.05, A3 0.203: pass; terminals 0.25 x 0.30 at e 0.50, outer edges at x = +/-1.00: b 0.20-0.30, L 0.25-0.35: pass; exposed pad 0.90 x 1.70 mm (x by y, long side along the terminal rows), 0.2 mm chamfer at its pin-1 corner: E2 0.80-1.00, D2 1.60-1.80: pass; terminals at x = -0.85 (y +0.75..-0.75) and +0.85: on footprint pads 1-4 (x -0.9) and 5-8 (x +0.9); pin-1 dot on top at (-0.62, +0.62) mm (KiCad (-0.62, -0.62)), next to pad 1: pass
  • ✓3D pose: ap3441she-7b.step and ap3441she-7b-etched.step are Z-up, seated on z = 0, centred on the footprint origin (offset 0.0 mm), footprint (model) binding identity (step_pose.py); the source was built in the footprint frame, so the transform is identity; the etched file adds the adom-chip-laser MPN inlay on the top face; GLBs from step2glb convert; footprint (model) path now ${KIPRJMOD}/ap3441she-7b.step with only that line changed (pads untouched); provenance/3d-model.json records source, terms, hashes, transform and checks
  • ✓Symbol Datasheet / MPN / Manufacturer / DigiKey / Mouser / LCSC properties agree with page.json; footprint Datasheet property points at the manufacturer datasheet URL
  • ✓component-page-verify: all checks pass
Evidencedatasheet (Diodes Incorporated, DS39754 Rev. 3-2)
Verified files✓ ap3441she-7b.kicad_sym✓ ap3441she-7b.kicad_mod✓ ap3441she-7b.step
8 Oct 2026Claude (AI build)Datasheet pins not matched to a symbol pin: EPsuperseded
reviewfor all variants
  • •Datasheet pins not matched to a symbol pin: EP
8 Oct 2026Claude (AI build)1 of 9 pins have no datasheet description yet (pins 9).superseded
reviewfor all variants
  • •1 of 9 pins have no datasheet description yet (pins 9).
8 Oct 2026Claude (AI build)Automated build checks (awaiting human validation)superseded
SymbolFootprint3D modelPinsfor all variants
  • ✓Footprint extracted pad-for-pad from the source board and normalized to the footprint frame (back-side parts un-mirrored)
  • ✓3D model seated z=0 at footprint origin (placement inverse; method centroid-matched to KiCad library models on 59 cases)
  • ✓adom-lbr generate + lint passed
  • •8 of 9 pins described from the datasheet (adom-ds2sf, page-cited)
  • •Not yet checked by a person: land pattern vs datasheet, pin-1/orientation, 3D body vs drawing
Evidencedatasheet
Verified files! ap3441she-7b.kicad_sym! ap3441she-7b.kicad_mod! ap3441she-7b.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
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← Commit history

Add component metadata and pin table

Caleb ·f4e4cc721f ·21d ago ·parent e2ddc03
1 file changed +179−30
page.json+179−30
page.json+179−30
@@ -1,28 +1,35 @@ {   "schema_version": 1,-  "slug": "ap3441she-7b",   "type": "component",-  "kind": "component",+  "slug": "ap3441she-7b",   "title": "AP3441SHE-7B",   "brief": "Diodes Incorporated Voltage Regulators - DC DC Switching Regulators, DFN2020-8-EP. KiCad symbol, footprint and 3D as used on Adom boards; pin functions from the manufacturer datasheet.",   "version": "0.1.0",-  "because": "No wiki page exists for this MPN: cross-referenced every BOM line of the Adom board pages against all 25,496 hardware pages on 2026-10-07; this part had no match by MPN or LCSC number.",-  "hero": {-    "type": "billboard",-    "headline": "AP3441SHE-7B",-    "subhead": "Diodes Incorporated Voltage Regulators - DC DC Switching Regulators",-    "screenshot": "docs/hero.png",-    "chrome": false-  },+  "license": "CC-BY-SA-4.0",+  "tags": [+    "component",+    "power management (pmic)",+    "ap3441she-7b",+    "board-derived",+    "staged-for-validation"+  ],   "component": {     "mpn": "AP3441SHE-7B",     "manufacturer": "Diodes Incorporated",     "package": "DFN2020-8-EP",-    "pin_count": null,+    "pin_count": 9,     "category": "Power Management (PMIC)",     "subcategory": "Voltage Regulators - DC DC Switching Regulators",-    "body_size": null,-    "parts": {},+    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588952170607071232",+    "parts": {+      "symbol": "ap3441she-7b.kicad_sym",+      "footprint": "ap3441she-7b.kicad_mod",+      "model_3d": "ap3441she-7b-etched.glb",+      "model_3d_plain": "ap3441she-7b.glb",+      "model_3d_step": "ap3441she-7b-etched.step",+      "model_3d_step_plain": "ap3441she-7b.step",+      "lbr": "ap3441she-7b.lbr"+    },     "distributor_links": {       "digikey": {         "part": "AP3441SHE-7BDITR-ND",@@ -37,31 +44,173 @@         "url": "https://www.lcsc.com/product-detail/C2070918.html"       }     },-    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588952170607071232"+    "pins": [+      {+        "number": "1",+        "name": "FB",+        "type": "passive",+        "description": "Feedback input to the internal error amplifier. Regulated to the 0.6 V internal reference (0.591–0.609 V); set the output voltage with an external resistor divider from VOUT to FB to SGND. [datasheet p.2]"+      },+      {+        "number": "2",+        "name": "PG",+        "type": "open_collector",+        "description": "Power-Good indicator, open-drain output. PG is pulled up to VIN (via external pull-up) when VOUT is within 20% of the regulation level; otherwise the output is pulled low. [datasheet p.2]"+      },+      {+        "number": "3",+        "name": "VIN",+        "type": "power_in",+        "description": "Bias supply and chip main power supply input, 2.7 V to 5.5 V. Bypass locally with a 22 µF ceramic capacitor to PGND. Absolute max 6 V. [datasheet p.2]"+      },+      {+        "number": "4",+        "name": "PGND",+        "type": "power_in",+        "description": "Power ground pin — return for the internal power MOSFETs and the input/output decoupling capacitors. [datasheet p.2]"+      },+      {+        "number": "5",+        "name": "nc",+        "type": "no_connect",+        "description": "No internal connection. Leave floating or tie to ground; no electrical function. [datasheet p.2]"+      },+      {+        "number": "6",+        "name": "LX",+        "type": "power_out",+        "description": "Switching node — common drain of the internal high-side and synchronous low-side power MOSFETs. Connect to the external power inductor (typ. 2.2 µH). [datasheet p.2]"+      },+      {+        "number": "7",+        "name": "EN",+        "type": "input",+        "description": "Enable control input. VEN > 1.5 V enables the converter; VEN < 0.4 V shuts down the device (ISD < 1 µA). Do not float; absolute max VIN+0.3 V. [datasheet p.2]"+      },+      {+        "number": "8",+        "name": "SGND",+        "type": "power_in",+        "description": "Signal ground pin — quiet reference for the error amplifier, bandgap reference, and control logic. Tie to PGND at a single point under the IC. [datasheet p.2]"+      },+      {+        "number": "9",+        "name": "PAD",+        "type": "input",+        "description": ""+      }+    ],+    "provenance": {+      "factory_chain": {+        "pipeline": "adom-parts (board-derived) 0.1",+        "pins": "KiCad symbol from the source board + adom-ds2sf datasheet extraction (claude-opus-4-7)",+        "at": "2026-10-08"+      },+      "datasheet": {+        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588952170607071232",+        "pages": 13,+        "sha256": "c159ff2133de34dd771faf914df62a8bb8067dd490a9bc3e5df72b97d88de27c",+        "source_tier": "lcsc"+      },+      "cad": "KiCad official libraries (CC-BY-SA 4.0); footprint and symbol as used on Adom boards",+      "pins": {+        "total": 9,+        "described": 8,+        "cites_pages": true,+        "refuses_to_fabricate": true+      }+    },+    "viewers": {+      "symbol": "viewers/symbol.html",+      "footprint": "viewers/footprint.html"+    },+    "models_3d": [+      {+        "file": "ap3441she-7b.step",+        "role": "plain",+        "up": "Z",+        "units": "mm",+        "origin": "footprint origin",+        "seat": "z = 0 (PCB top surface)",+        "extents_mm": [+          2.0,+          1.98,+          0.92+        ],+        "zmin_mm": -0.0,+        "footprint_binding": "identity",+        "sha256": "6fa3d9c73be1324e48a2bfab0712bbc4f7299c813a5c719f6c355515f8b7283a",+        "checked": "2026-10-08",+        "checked_by": "adom-parts/partstep.py (placement inverse from the source board; centroid-matched to KiCad library models on 59 reference cases)"+      },+      {+        "file": "ap3441she-7b-etched.step",+        "role": "eda",+        "up": "Z",+        "units": "mm",+        "origin": "footprint origin",+        "seat": "z = 0 (PCB top surface)",+        "extents_mm": [+          2.0,+          1.98,+          0.922+        ],+        "zmin_mm": -0.0,+        "footprint_binding": "identity",+        "sha256": "95cb1967fdf2140081c61a2bb0e18916829103a64ab4c3d80899b34c58cd14b8",+        "checked": "2026-10-08",+        "checked_by": "adom-parts/partstep.py (placement inverse from the source board; centroid-matched to KiCad library models on 59 reference cases)"+      }+    ]   },-  "tags": [-    "component",-    "power management (pmic)",-    "ap3441she-7b",-    "board-derived",-    "staged-for-validation"+  "metadata": {+    "specs": {+      "Manufacturer": "Diodes Incorporated",+      "Package": "DFN2020-8-EP",+      "Category": "Power Management (PMIC)",+      "Pins": "9",+      "LCSC": "C2070918"+    }+  },+  "variants": [],+  "sections": [+    "hero",+    "viewers",+    "readme",+    "breadcrumbs",+    "info"   ],   "discovery_triggers": [     "ap3441she-7b",     "ap3441she-7b"   ],-  "license": "CC-BY-SA-4.0",-  "visibility": {-    "public": false-  },+  "discovery_pitch": "AP3441SHE-7B (Diodes Incorporated) component page: pinout, KiCad symbol, footprint and 3D.",   "author": {     "name": "Caleb",     "email": "[email protected]"   },-  "sample_prompts": [],-  "discovery_pitch": null,-  "metadata": {},-  "created_at": "2026-10-08T18:26:10.364Z",-  "updated_at": "2026-10-08T18:26:10.364Z",-  "org": "adom"+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "verification.json",+    "ap3441she-7b.kicad_sym",+    "ap3441she-7b.kicad_mod",+    "ap3441she-7b-etched.glb",+    "ap3441she-7b-etched.step",+    "ap3441she-7b.glb",+    "ap3441she-7b.step",+    "ap3441she-7b.lbr",+    "docs/hero.png",+    "docs/ap3441she-7b-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": {+    "public": false+  } }\ No newline at end of file