component
DP2291
Public Made by Adomby adom
Shenzhen Developer Microelec AC-DC Controllers & Regulators, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+42@@ -0,0 +1,42 @@+# DP2291++**Shenzhen Developer Microelec** · AC-DC Controllers & Regulators · SOT-23-6++DP2291 from Shenzhen Developer Microelec, in a SOT-23-6. 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 | GND | power_in | Ground reference of the IC. |+| 2 | FB | input | Feedback input for loop regulation via photo-coupler; PWM duty cycle determined by this pin voltage and current sense signal; voltage range -0.3 to 7 V, open voltage 4.5 to 6 V, input impedance 25 kOhm. |+| 3 | SEL | input | Mode selection input; connect external capacitor between SEL and GND for CC/CV mode or leave floating for CV mode only; voltage range -0.3 to 7 V. |+| 4 | CS | input | Current sense input pin with 250 ns leading edge blanking; current limiting threshold 0.97 to 1.03 V; voltage range -0.3 to 7 V. |+| 5 | VDD | power_in | Power supply input; operating range 10.5 to 28.5 V, UVLO exit 21 V typical, UVLO enter 9.3 V typical, OVP threshold 31.5 V typical. |+| 6 | GATE | output | Totem-pole gate driver output to drive external MOSFET; 400 mA capability, output low 1 V, output high 7.5 V at 20 mA, clamp voltage 16 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Shenzhen Developer Microelec |+| Package | SOT-23-6 |+| Category | Power Supply Chip |+| Pins | 6 |++## CAD (KiCad official)++- Symbol: `DP2291`+- Footprint: `Package_TO_SOT_SMD:SOT-23-6`+- 3D model: SOT-23-6 (KiCad packages3D, STEP)+- 3D model files: `dp2291-etched.step` / `dp2291-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dp2291.step` / `dp2291.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Shenzhen Developer Microelec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226438600630272) (14 pp, sha256 `5aa7724af457f485`, retrieved 2026-09-22, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/dp2291-datasheet.pdf)
page.jsonadded+129@@ -0,0 +1,129 @@+{+ "slug": "dp2291",+ "version": "0.1.0",+ "type": "component",+ "description": "Shenzhen Developer Microelec AC-DC Controllers & Regulators, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power supply chip",+ "dp2291",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "dp2291.kicad_sym",+ "dp2291.kicad_mod",+ "dp2291.glb",+ "dp2291.step",+ "dp2291.lbr",+ "docs/hero.png",+ "docs/dp2291-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "DP2291",+ "manufacturer": "Shenzhen Developer Microelec",+ "package": "SOT-23-6",+ "pin_count": 6,+ "category": "Power Supply Chip",+ "subcategory": "AC-DC Controllers & Regulators",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226438600630272",+ "parts": {+ "symbol": "dp2291.kicad_sym",+ "footprint": "dp2291.kicad_mod",+ "model_3d": "dp2291-etched.glb",+ "model_3d_plain": "dp2291.glb",+ "model_3d_step": "dp2291-etched.step",+ "model_3d_step_plain": "dp2291.step",+ "lbr": "dp2291.lbr"+ },+ "distributor_links": {+ "lcsc": "C2967752"+ },+ "pins": [+ {+ "number": "1",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference of the IC."+ },+ {+ "number": "2",+ "name": "FB",+ "type": "input",+ "description": "Feedback input for loop regulation via photo-coupler; PWM duty cycle determined by this pin voltage and current sense signal; voltage range -0.3 to 7 V, open voltage 4.5 to 6 V, input impedance 25 kOhm."+ },+ {+ "number": "3",+ "name": "SEL",+ "type": "input",+ "description": "Mode selection input; connect external capacitor between SEL and GND for CC/CV mode or leave floating for CV mode only; voltage range -0.3 to 7 V."+ },+ {+ "number": "4",+ "name": "CS",+ "type": "input",+ "description": "Current sense input pin with 250 ns leading edge blanking; current limiting threshold 0.97 to 1.03 V; voltage range -0.3 to 7 V."+ },+ {+ "number": "5",+ "name": "VDD",+ "type": "power_in",+ "description": "Power supply input; operating range 10.5 to 28.5 V, UVLO exit 21 V typical, UVLO enter 9.3 V typical, OVP threshold 31.5 V typical."+ },+ {+ "number": "6",+ "name": "GATE",+ "type": "output",+ "description": "Totem-pole gate driver output to drive external MOSFET; 400 mA capability, output low 1 V, output high 7.5 V at 20 mA, clamp voltage 16 V."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 14,+ "cost_usd": 0.1129,+ "at": "2026-09-22T11:47:50"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590226438600630272",+ "pages": 14,+ "sha256": "5aa7724af457f485",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 6,+ "described": 6,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}