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REF3440QDGKRQ1
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Texas Instruments Voltage References, VSSOP-8-0.65mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# REF3440QDGKRQ1++**Texas Instruments** · Voltage References · VSSOP-8-0.65mm++REF3440QDGKRQ1 from Texas Instruments, in a VSSOP-8-0.65mm. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | ENABLE | input | Enable input that turns the device on or puts it in low-power shutdown; the datasheet gives the operating mode at EN of 1.6 V or higher and shutdown at 0.5 V or lower, and EN must not be pulled above VIN. |+| 2 | GND_S | power_in | Ground sense connection of the Kelvin (force/sense) pair, carrying negligible current, and it may be tied to GND_F where IR drop is negligible. |+| 3 | GND_F | power_in | Ground force connection that carries the load return current, and it may be tied to GND_S where IR drop is negligible. |+| 4 | NIC | unconnected | No internal connection; the datasheet assigns no function to this pin. |+| 5 | NIC | unconnected | No internal connection; the datasheet assigns no function to this pin. |+| 6 | OUT_F | output | Reference voltage output force connection that sources or sinks load current limited to ±10 mA, with a short-circuit current of 18 mA typical (22 mA max) at 25°C. |+| 7 | OUT_S | output | Reference voltage output sense connection used with OUT_F to remove IR-drop error from the reference output at the load. |+| 8 | IN | power_in | Input supply connection; VIN must be at least VOUT + VDO (dropout) and the recommended maximum is 12 V (absolute maximum 13 V). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VSSOP-8-0.65mm |+| Category | Power Supply Chip |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `REF3440QDGKRQ1`+- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`+- 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)+- 3D model files: `ref3440qdgkrq1-etched.step` / `ref3440qdgkrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ref3440qdgkrq1.step` / `ref3440qdgkrq1.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/ref34-q1) (40 pp, sha256 `addb0b3508cd0c2e`, retrieved 2026-10-08, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (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/ref3440qdgkrq1-datasheet.pdf)
page.jsonadded+200@@ -0,0 +1,200 @@+{+ "slug": "ref3440qdgkrq1",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Voltage References, VSSOP-8-0.65mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power supply chip",+ "ref3440qdgkrq1",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ref3440qdgkrq1.kicad_sym",+ "ref3440qdgkrq1.kicad_mod",+ "ref3440qdgkrq1.glb",+ "ref3440qdgkrq1.step",+ "ref3440qdgkrq1.lbr",+ "docs/hero.png",+ "docs/ref3440qdgkrq1-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "ref3440qdgkrq1-hero.glb",+ "ref3440qdgkrq1-hero.overlay.json"+ ],+ "component": {+ "mpn": "REF3440QDGKRQ1",+ "manufacturer": "Texas Instruments",+ "package": "VSSOP-8-0.65mm",+ "pin_count": 8,+ "category": "Power Supply Chip",+ "subcategory": "Voltage References",+ "datasheet": "https://www.ti.com/cn/lit/gpn/ref34-q1",+ "parts": {+ "symbol": "ref3440qdgkrq1.kicad_sym",+ "footprint": "ref3440qdgkrq1.kicad_mod",+ "model_3d": "ref3440qdgkrq1-hero.glb",+ "model_3d_plain": "ref3440qdgkrq1.glb",+ "model_3d_step": "ref3440qdgkrq1-etched.step",+ "model_3d_step_plain": "ref3440qdgkrq1.step",+ "lbr": "ref3440qdgkrq1.lbr"+ },+ "distributor_links": {+ "lcsc": "C1518738",+ "digikey": "296-REF3440QDGKRQ1TR-ND",+ "mouser": "595-REF3440QDGKRQ1"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T14:34:46Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-REF3440QDGKRQ1TR-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-REF3440QDGKRQ1",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "ENABLE",+ "type": "input",+ "description": "Enable input that turns the device on or puts it in low-power shutdown; the datasheet gives the operating mode at EN of 1.6 V or higher and shutdown at 0.5 V or lower, and EN must not be pulled above VIN."+ },+ {+ "number": "2",+ "name": "GND_S",+ "type": "power_in",+ "description": "Ground sense connection of the Kelvin (force/sense) pair, carrying negligible current, and it may be tied to GND_F where IR drop is negligible."+ },+ {+ "number": "3",+ "name": "GND_F",+ "type": "power_in",+ "description": "Ground force connection that carries the load return current, and it may be tied to GND_S where IR drop is negligible."+ },+ {+ "number": "4",+ "name": "NIC",+ "type": "unconnected",+ "description": "No internal connection; the datasheet assigns no function to this pin."+ },+ {+ "number": "5",+ "name": "NIC",+ "type": "unconnected",+ "description": "No internal connection; the datasheet assigns no function to this pin."+ },+ {+ "number": "6",+ "name": "OUT_F",+ "type": "output",+ "description": "Reference voltage output force connection that sources or sinks load current limited to ±10 mA, with a short-circuit current of 18 mA typical (22 mA max) at 25°C."+ },+ {+ "number": "7",+ "name": "OUT_S",+ "type": "output",+ "description": "Reference voltage output sense connection used with OUT_F to remove IR-drop error from the reference output at the load."+ },+ {+ "number": "8",+ "name": "IN",+ "type": "power_in",+ "description": "Input supply connection; VIN must be at least VOUT + VDO (dropout) and the recommended maximum is 12 V (absolute maximum 13 V)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: The DGK pin table and pin diagram on page 3 are the source for pins 1-8; the figure shows pin 3 as G; The ENABLE row description in the Chinese translation reads '使用连接' (apparently a translation artifac; The datasheet is a Chinese translation of SBAS901; TI states the English version is the controlling "+ ],+ "pages_sent": 20,+ "cost_usd": 0.1033,+ "at": "2026-10-08T14:34:26"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ref34-q1",+ "pages": 40,+ "sha256": "addb0b3508cd0c2e",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "ref3440qdgkrq1.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3.1,+ 2,+ 0.85+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "353552981eef35cb93635057d4aeb89aef22648c77af6fd095e328bfe6b834bd",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "ref3440qdgkrq1-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3.1,+ 2,+ 0.85+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "c1ec27f07d0ab4f088785d75c10c951912ad61ad35c0d5ad8339045ea248f746",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}