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LP3907SQ-PJXIX
Public Made by Adomby adom
Texas Instruments DC-DC Converters, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+62@@ -0,0 +1,62 @@+# LP3907SQ-PJXIX++**Texas Instruments** · DC-DC Converters · WQFN-24-EP(4x4)++LP3907SQ-PJXIX from Texas Instruments, in a WQFN-24-EP(4x4). 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 | VINLDO12 | power_in | Analog power supply for internal functions (VREF, BIAS, I2C, Logic); operational range 2.8V to 5.5V. |+| 2 | EN_T | input | Enable input for preset power-on sequence; rising edge triggers power-up with programmable delay. |+| 3 | nPOR | output | Open-drain power-on reset output for Buck1 and Buck2; pulled low when supply voltages invalid, 100kΩ external pullup required. |+| 4 | GND_SW1 | power_in | Buck1 NMOS power switch ground return. |+| 5 | SW1 | power_out | Buck1 switcher output pin; connect to external inductor for step-down conversion. |+| 6 | VIN1 | power_in | Power input for Buck1 from battery or DC source; 2.8V to 5.5V. |+| 7 | ENSW1 | input | Logic input to enable Buck1 switcher; HIGH enables operation. |+| 8 | FB1 | input | Buck1 feedback input terminal for output voltage regulation; compared against 0.5V internal reference. |+| 9 | GND_C | power_in | Non-switching core ground for logic and reference circuits. |+| 10 | AVDD | power_in | Analog power for Buck converter error amplifiers; 2.8V to 5.5V. |+| 11 | FB2 | input | Buck2 feedback input terminal for output voltage regulation; compared against 0.5V internal reference. |+| 12 | ENSW2 | input | Logic input to enable Buck2 switcher; HIGH enables operation. |+| 13 | VIN2 | power_in | Power input for Buck2 from battery or DC source; 2.8V to 5.5V. |+| 14 | SW2 | power_out | Buck2 switcher output pin; connect to external inductor for step-down conversion. |+| 15 | GND_SW2 | power_in | Buck2 NMOS power switch ground return. |+| 16 | SDA | bidirectional | I2C serial data line; open-drain bidirectional, external pullup resistor required. |+| 17 | SCL | input | I2C serial clock input; logic signal, external pullup resistor required. |+| 18 | GND_L | power_in | LDO ground return. |+| 19 | VINLDO1 | power_in | Power input for LDO1 from battery or DC source; 1.74V to 5.5V with minimum 0.3V headroom above output. |+| 20 | LDO1 | power_out | LDO1 regulated output; programmable 1.0V to 3.5V, 300mA maximum output current, 30mV typical dropout voltage. |+| 21 | ENLDO1 | input | Logic input to enable LDO1; HIGH enables regulation. |+| 22 | ENLDO2 | input | Logic input to enable LDO2; HIGH enables regulation. |+| 23 | LDO2 | power_out | LDO2 regulated output; programmable 1.0V to 3.5V, 300mA maximum output current, 30mV typical dropout voltage. |+| 24 | VINLDO2 | power_in | Power input for LDO2 from battery or DC source; 1.74V to 5.5V with minimum 0.3V headroom above output. |+| 25 | DAP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | WQFN-24-EP(4x4) |+| Category | Power Management (PMIC) |+| Pins | 25 |++## CAD (KiCad official)++- Symbol: `LP3907SQ-PJXIX`+- Footprint: `Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm`+- 3D model: WQFN-24-EP(4x4) (KiCad packages3D, STEP)+- 3D model files: `lp3907sq-pjxix-etched.step` / `lp3907sq-pjxix-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp3907sq-pjxix.step` / `lp3907sq-pjxix.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/lp3907) (61 pp, sha256 `28f50063d0d77651`, retrieved 2026-09-26, 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 0.2`, 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/lp3907sq-pjxix-datasheet.pdf)
page.jsonadded+258@@ -0,0 +1,258 @@+{+ "slug": "lp3907sq-pjxix",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lp3907sq-pjxix",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lp3907sq-pjxix.kicad_sym",+ "lp3907sq-pjxix.kicad_mod",+ "lp3907sq-pjxix.glb",+ "lp3907sq-pjxix.step",+ "lp3907sq-pjxix.lbr",+ "docs/hero.png",+ "docs/lp3907sq-pjxix-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LP3907SQ-PJXIX",+ "manufacturer": "Texas Instruments",+ "package": "WQFN-24-EP(4x4)",+ "pin_count": 25,+ "category": "Power Management (PMIC)",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lp3907",+ "parts": {+ "symbol": "lp3907sq-pjxix.kicad_sym",+ "footprint": "lp3907sq-pjxix.kicad_mod",+ "model_3d": "lp3907sq-pjxix-etched.glb",+ "model_3d_plain": "lp3907sq-pjxix.glb",+ "model_3d_step": "lp3907sq-pjxix-etched.step",+ "model_3d_step_plain": "lp3907sq-pjxix.step",+ "lbr": "lp3907sq-pjxix.lbr"+ },+ "distributor_links": {+ "lcsc": "C2650270"+ },+ "distributor_check": {+ "checked_at": "2026-09-26T23:30:36Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": null,+ "status": "no match"+ },+ "mouser": {+ "pn": null,+ "status": "no match"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VINLDO12",+ "type": "power_in",+ "description": "Analog power supply for internal functions (VREF, BIAS, I2C, Logic); operational range 2.8V to 5.5V."+ },+ {+ "number": "2",+ "name": "EN_T",+ "type": "input",+ "description": "Enable input for preset power-on sequence; rising edge triggers power-up with programmable delay."+ },+ {+ "number": "3",+ "name": "nPOR",+ "type": "output",+ "description": "Open-drain power-on reset output for Buck1 and Buck2; pulled low when supply voltages invalid, 100kΩ external pullup required."+ },+ {+ "number": "4",+ "name": "GND_SW1",+ "type": "power_in",+ "description": "Buck1 NMOS power switch ground return."+ },+ {+ "number": "5",+ "name": "SW1",+ "type": "power_out",+ "description": "Buck1 switcher output pin; connect to external inductor for step-down conversion."+ },+ {+ "number": "6",+ "name": "VIN1",+ "type": "power_in",+ "description": "Power input for Buck1 from battery or DC source; 2.8V to 5.5V."+ },+ {+ "number": "7",+ "name": "ENSW1",+ "type": "input",+ "description": "Logic input to enable Buck1 switcher; HIGH enables operation."+ },+ {+ "number": "8",+ "name": "FB1",+ "type": "input",+ "description": "Buck1 feedback input terminal for output voltage regulation; compared against 0.5V internal reference."+ },+ {+ "number": "9",+ "name": "GND_C",+ "type": "power_in",+ "description": "Non-switching core ground for logic and reference circuits."+ },+ {+ "number": "10",+ "name": "AVDD",+ "type": "power_in",+ "description": "Analog power for Buck converter error amplifiers; 2.8V to 5.5V."+ },+ {+ "number": "11",+ "name": "FB2",+ "type": "input",+ "description": "Buck2 feedback input terminal for output voltage regulation; compared against 0.5V internal reference."+ },+ {+ "number": "12",+ "name": "ENSW2",+ "type": "input",+ "description": "Logic input to enable Buck2 switcher; HIGH enables operation."+ },+ {+ "number": "13",+ "name": "VIN2",+ "type": "power_in",+ "description": "Power input for Buck2 from battery or DC source; 2.8V to 5.5V."+ },+ {+ "number": "14",+ "name": "SW2",+ "type": "power_out",+ "description": "Buck2 switcher output pin; connect to external inductor for step-down conversion."+ },+ {+ "number": "15",+ "name": "GND_SW2",+ "type": "power_in",+ "description": "Buck2 NMOS power switch ground return."+ },+ {+ "number": "16",+ "name": "SDA",+ "type": "bidirectional",+ "description": "I2C serial data line; open-drain bidirectional, external pullup resistor required."+ },+ {+ "number": "17",+ "name": "SCL",+ "type": "input",+ "description": "I2C serial clock input; logic signal, external pullup resistor required."+ },+ {+ "number": "18",+ "name": "GND_L",+ "type": "power_in",+ "description": "LDO ground return."+ },+ {+ "number": "19",+ "name": "VINLDO1",+ "type": "power_in",+ "description": "Power input for LDO1 from battery or DC source; 1.74V to 5.5V with minimum 0.3V headroom above output."+ },+ {+ "number": "20",+ "name": "LDO1",+ "type": "power_out",+ "description": "LDO1 regulated output; programmable 1.0V to 3.5V, 300mA maximum output current, 30mV typical dropout voltage."+ },+ {+ "number": "21",+ "name": "ENLDO1",+ "type": "input",+ "description": "Logic input to enable LDO1; HIGH enables regulation."+ },+ {+ "number": "22",+ "name": "ENLDO2",+ "type": "input",+ "description": "Logic input to enable LDO2; HIGH enables regulation."+ },+ {+ "number": "23",+ "name": "LDO2",+ "type": "power_out",+ "description": "LDO2 regulated output; programmable 1.0V to 3.5V, 300mA maximum output current, 30mV typical dropout voltage."+ },+ {+ "number": "24",+ "name": "VINLDO2",+ "type": "power_in",+ "description": "Power input for LDO2 from battery or DC source; 1.74V to 5.5V with minimum 0.3V headroom above output."+ },+ {+ "number": "25",+ "name": "DAP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "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": [+ "exposed pad 25 added from the footprint",+ "dropped thermal pad ['EP'] absent from footprint"+ ],+ "pages_sent": 61,+ "cost_usd": 0.4949,+ "at": "2026-09-26T23:30:18"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lp3907",+ "pages": 61,+ "sha256": "28f50063d0d77651",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 25,+ "described": 25,+ "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]"+ }+}