component
SSP9481
Public Made by Adomby adom
Shanghai Siproin Microelectronics DC-DC Converters, SOT23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+41@@ -0,0 +1,41 @@+# SSP9481++**Shanghai Siproin Microelectronics** · DC-DC Converters · SOT23-6++SSP9481 from Shanghai Siproin Microelectronics, in a SOT23-6. 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 | BST | power_in | Bootstrap power supply for internal floating high side MOSFET driver; connect bypass capacitor between BST and SW with maximum voltage range of 6.0V relative to SW. |+| 2 | GND | power_in | Ground; connect as close as possible to the output capacitor to minimize high current switching paths. |+| 3 | FB | input | Feedback input to error amplifier for output voltage setting; foldback circuit reduces oscillation frequency to 150 kHz when FB voltage is below 250mV during short circuit for current limiting protection. |+| 4 | EN | input | Enable input; pull below 1.0V turn-off threshold to disable or above 1.35V turn-on threshold to enable; can connect 100kΩ resistor to VIN for automatic startup. |+| 5 | VIN | power_in | Input supply voltage with operating range 4.5V to 80V; powers all internal control circuits and switching tube; decoupling capacitor to ground required close to this pin to reduce switching spikes. |+| 6 | SW | output | Switch node output; connect low forward voltage Schottky diode to ground close to this pin to reduce switching spikes; voltage range -0.3V to VIN(MAX)+0.3V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Shanghai Siproin Microelectronics |+| Package | SOT23-6 |+| Category | Power Management (PMIC) |+| Pins | 6 |++## CAD (KiCad official)++- Symbol: `SSP9481`+- Footprint: `Package_TO_SOT_SMD:SOT-23-6`+- 3D model: SOT23-6 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Shanghai Siproin Microelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904778132443136) (10 pp, sha256 `9ec55c2653568dfd`, retrieved 2026-09-17, 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/ssp9481-datasheet.pdf)
page.jsonadded+126@@ -0,0 +1,126 @@+{+ "slug": "ssp9481",+ "version": "0.1.0",+ "type": "component",+ "description": "Shanghai Siproin Microelectronics DC-DC Converters, SOT23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "ssp9481",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ssp9481.kicad_sym",+ "ssp9481.kicad_mod",+ "ssp9481.glb",+ "ssp9481.step",+ "ssp9481.lbr",+ "docs/hero.png",+ "docs/ssp9481-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "SSP9481",+ "manufacturer": "Shanghai Siproin Microelectronics",+ "package": "SOT23-6",+ "pin_count": 6,+ "category": "Power Management (PMIC)",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904778132443136",+ "parts": {+ "symbol": "ssp9481.kicad_sym",+ "footprint": "ssp9481.kicad_mod",+ "model_3d": "ssp9481.glb",+ "model_3d_step": "ssp9481.step",+ "lbr": "ssp9481.lbr"+ },+ "distributor_links": {+ "lcsc": "C5444285"+ },+ "pins": [+ {+ "number": "1",+ "name": "BST",+ "type": "power_in",+ "description": "Bootstrap power supply for internal floating high side MOSFET driver; connect bypass capacitor between BST and SW with maximum voltage range of 6.0V relative to SW."+ },+ {+ "number": "2",+ "name": "GND",+ "type": "power_in",+ "description": "Ground; connect as close as possible to the output capacitor to minimize high current switching paths."+ },+ {+ "number": "3",+ "name": "FB",+ "type": "input",+ "description": "Feedback input to error amplifier for output voltage setting; foldback circuit reduces oscillation frequency to 150 kHz when FB voltage is below 250mV during short circuit for current limiting protection."+ },+ {+ "number": "4",+ "name": "EN",+ "type": "input",+ "description": "Enable input; pull below 1.0V turn-off threshold to disable or above 1.35V turn-on threshold to enable; can connect 100kΩ resistor to VIN for automatic startup."+ },+ {+ "number": "5",+ "name": "VIN",+ "type": "power_in",+ "description": "Input supply voltage with operating range 4.5V to 80V; powers all internal control circuits and switching tube; decoupling capacitor to ground required close to this pin to reduce switching spikes."+ },+ {+ "number": "6",+ "name": "SW",+ "type": "output",+ "description": "Switch node output; connect low forward voltage Schottky diode to ground close to this pin to reduce switching spikes; voltage range -0.3V to VIN(MAX)+0.3V."+ }+ ],+ "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": 10,+ "cost_usd": 0.0772,+ "at": "2026-09-17T19:30:01"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904778132443136",+ "pages": 10,+ "sha256": "9ec55c2653568dfd",+ "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",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}