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LP873248RHDRQ1
Public Made by Adomby adom
Texas Instruments DC-DC Converters, VQFN-28(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+65@@ -0,0 +1,65 @@+# LP873248RHDRQ1++**Texas Instruments** · DC-DC Converters · VQFN-28(5x5)++LP873248RHDRQ1 from Texas Instruments, in a VQFN-28(5x5). 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 | VOUT_LDO0 | power_out | LDO0 regulator output; leave the pin floating if LDO0 is not used. |+| 2 | FB_B0 | input | Positive output-voltage feedback sense input for Buck 0. |+| 3 | FB_B1 | input | Positive output-voltage feedback for Buck 1 in two single-phase configuration, and negative (output ground) feedback for Buck 0 in dual-phase configuration. |+| 4 | AGND | power_in | Analog ground. |+| 5 | VANA | power_in | Supply voltage for analog and digital blocks; must be connected to the same node as the VIN_Bx pins (2.8 V to 5.5 V recommended operating range). |+| 6 | EN | input | Programmable enable signal for the regulators and GPOs; leave floating if not used (the pin has an optional internal pull-down set by EN_PD). |+| 7 | VOUT_LDO1 | power_out | LDO1 regulator output; leave the pin floating if LDO1 is not used. |+| 8 | VIN_LDO1 | power_in | Power input for LDO1 (2.5 V to 5.5 V); connect to VANA if LDO1 is not used. |+| 9 | nINT | output | Open-drain interrupt output, active low; connect to ground if not used. |+| 10 | CLKIN | bidirectional | External clock input, with alternative function as general-purpose digital output GPO2 selected by CLKIN_PIN_SEL; leave floating if not used. |+| 11 | VIN_B1 | power_in | Power input for Buck 1; VIN_Bx pins are not connected internally and must be connected together externally and locally bypassed. |+| 12 | VIN_B1 | power_in | Power input for Buck 1; VIN_Bx pins are not connected internally and must be connected together externally and locally bypassed. |+| 13 | SW_B1 | power_out | Buck 1 switch node; leave floating if Buck 1 is not used. |+| 14 | SW_B1 | power_out | Buck 1 switch node; leave floating if Buck 1 is not used. |+| 15 | PGND_B1 | power_in | Power ground for Buck 1. |+| 16 | PGND_B1 | power_in | Power ground for Buck 1. |+| 17 | SCL | input | I2C serial interface clock input; connect a pullup resistor, or connect to ground if the I2C interface is not used. |+| 18 | SDA | bidirectional | I2C serial interface data input/output; connect a pullup resistor, or connect to ground if the I2C interface is not used. |+| 19 | SGND | power_in | Signal ground. |+| 20 | PGND_B0 | power_in | Power ground for Buck 0. |+| 21 | PGND_B0 | power_in | Power ground for Buck 0. |+| 22 | SW_B0 | power_out | Buck 0 switch node; leave floating if Buck 0 is not used. |+| 23 | SW_B0 | power_out | Buck 0 switch node; leave floating if Buck 0 is not used. |+| 24 | VIN_B0 | power_in | Power input for Buck 0; VIN_Bx pins are not connected internally and must be connected together externally and locally bypassed. |+| 25 | VIN_B0 | power_in | Power input for Buck 0; VIN_Bx pins are not connected internally and must be connected together externally and locally bypassed. |+| 26 | GPO | output | General-purpose digital output; leave the pin floating if not used. |+| 27 | PGOOD | output | Power-good indication output; leave the pin floating if not used. |+| 28 | VIN_LDO0 | power_in | Power input for LDO0 (2.5 V to 5.5 V); connect to VANA if LDO0 is not used. |+| 29 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-28(5x5) |+| Category | Power Management (PMIC) |+| Pins | 29 |++## CAD (KiCad official)++- Symbol: `LP873248RHDRQ1`+- Footprint: `Package_DFN_QFN:QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm`+- 3D model: VQFN-28(5x5) (KiCad packages3D, STEP)+- 3D model files: `lp873248rhdrq1-etched.step` / `lp873248rhdrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp873248rhdrq1.step` / `lp873248rhdrq1.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602584955302264832) (86 pp, sha256 `8824bbdf846706b5`, retrieved 2026-10-08, tier: lcsc)+- **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/lp873248rhdrq1-datasheet.pdf)
page.jsonadded+327@@ -0,0 +1,327 @@+{+ "slug": "lp873248rhdrq1",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, VQFN-28(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lp873248rhdrq1",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lp873248rhdrq1.kicad_sym",+ "lp873248rhdrq1.kicad_mod",+ "lp873248rhdrq1.glb",+ "lp873248rhdrq1.step",+ "lp873248rhdrq1.lbr",+ "docs/hero.png",+ "docs/lp873248rhdrq1-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lp873248rhdrq1-hero.glb",+ "lp873248rhdrq1-hero.overlay.json"+ ],+ "component": {+ "mpn": "LP873248RHDRQ1",+ "manufacturer": "Texas Instruments",+ "package": "VQFN-28(5x5)",+ "pin_count": 29,+ "category": "Power Management (PMIC)",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602584955302264832",+ "parts": {+ "symbol": "lp873248rhdrq1.kicad_sym",+ "footprint": "lp873248rhdrq1.kicad_mod",+ "model_3d": "lp873248rhdrq1-hero.glb",+ "model_3d_plain": "lp873248rhdrq1.glb",+ "model_3d_step": "lp873248rhdrq1-etched.step",+ "model_3d_step_plain": "lp873248rhdrq1.step",+ "lbr": "lp873248rhdrq1.lbr"+ },+ "distributor_links": {+ "lcsc": "C6079890",+ "digikey": "296-LP873248RHDRQ1TR-ND",+ "mouser": "595-LP873248RHDRQ1"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T19:47:37Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-LP873248RHDRQ1TR-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-LP873248RHDRQ1",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VOUT_LDO0",+ "type": "power_out",+ "description": "LDO0 regulator output; leave the pin floating if LDO0 is not used."+ },+ {+ "number": "2",+ "name": "FB_B0",+ "type": "input",+ "description": "Positive output-voltage feedback sense input for Buck 0."+ },+ {+ "number": "3",+ "name": "FB_B1",+ "type": "input",+ "description": "Positive output-voltage feedback for Buck 1 in two single-phase configuration, and negative (output ground) feedback for Buck 0 in dual-phase configuration."+ },+ {+ "number": "4",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground."+ },+ {+ "number": "5",+ "name": "VANA",+ "type": "power_in",+ "description": "Supply voltage for analog and digital blocks; must be connected to the same node as the VIN_Bx pins (2.8 V to 5.5 V recommended operating range)."+ },+ {+ "number": "6",+ "name": "EN",+ "type": "input",+ "description": "Programmable enable signal for the regulators and GPOs; leave floating if not used (the pin has an optional internal pull-down set by EN_PD)."+ },+ {+ "number": "7",+ "name": "VOUT_LDO1",+ "type": "power_out",+ "description": "LDO1 regulator output; leave the pin floating if LDO1 is not used."+ },+ {+ "number": "8",+ "name": "VIN_LDO1",+ "type": "power_in",+ "description": "Power input for LDO1 (2.5 V to 5.5 V); connect to VANA if LDO1 is not used."+ },+ {+ "number": "9",+ "name": "nINT",+ "type": "output",+ "description": "Open-drain interrupt output, active low; connect to ground if not used."+ },+ {+ "number": "10",+ "name": "CLKIN",+ "type": "bidirectional",+ "description": "External clock input, with alternative function as general-purpose digital output GPO2 selected by CLKIN_PIN_SEL; leave floating if not used."+ },+ {+ "number": "11",+ "name": "VIN_B1",+ "type": "power_in",+ "description": "Power input for Buck 1; VIN_Bx pins are not connected internally and must be connected together externally and locally bypassed."+ },+ {+ "number": "12",+ "name": "VIN_B1",+ "type": "power_in",+ "description": "Power input for Buck 1; VIN_Bx pins are not connected internally and must be connected together externally and locally bypassed."+ },+ {+ "number": "13",+ "name": "SW_B1",+ "type": "power_out",+ "description": "Buck 1 switch node; leave floating if Buck 1 is not used."+ },+ {+ "number": "14",+ "name": "SW_B1",+ "type": "power_out",+ "description": "Buck 1 switch node; leave floating if Buck 1 is not used."+ },+ {+ "number": "15",+ "name": "PGND_B1",+ "type": "power_in",+ "description": "Power ground for Buck 1."+ },+ {+ "number": "16",+ "name": "PGND_B1",+ "type": "power_in",+ "description": "Power ground for Buck 1."+ },+ {+ "number": "17",+ "name": "SCL",+ "type": "input",+ "description": "I2C serial interface clock input; connect a pullup resistor, or connect to ground if the I2C interface is not used."+ },+ {+ "number": "18",+ "name": "SDA",+ "type": "bidirectional",+ "description": "I2C serial interface data input/output; connect a pullup resistor, or connect to ground if the I2C interface is not used."+ },+ {+ "number": "19",+ "name": "SGND",+ "type": "power_in",+ "description": "Signal ground."+ },+ {+ "number": "20",+ "name": "PGND_B0",+ "type": "power_in",+ "description": "Power ground for Buck 0."+ },+ {+ "number": "21",+ "name": "PGND_B0",+ "type": "power_in",+ "description": "Power ground for Buck 0."+ },+ {+ "number": "22",+ "name": "SW_B0",+ "type": "power_out",+ "description": "Buck 0 switch node; leave floating if Buck 0 is not used."+ },+ {+ "number": "23",+ "name": "SW_B0",+ "type": "power_out",+ "description": "Buck 0 switch node; leave floating if Buck 0 is not used."+ },+ {+ "number": "24",+ "name": "VIN_B0",+ "type": "power_in",+ "description": "Power input for Buck 0; VIN_Bx pins are not connected internally and must be connected together externally and locally bypassed."+ },+ {+ "number": "25",+ "name": "VIN_B0",+ "type": "power_in",+ "description": "Power input for Buck 0; VIN_Bx pins are not connected internally and must be connected together externally and locally bypassed."+ },+ {+ "number": "26",+ "name": "GPO",+ "type": "output",+ "description": "General-purpose digital output; leave the pin floating if not used."+ },+ {+ "number": "27",+ "name": "PGOOD",+ "type": "output",+ "description": "Power-good indication output; leave the pin floating if not used."+ },+ {+ "number": "28",+ "name": "VIN_LDO0",+ "type": "power_in",+ "description": "Power input for LDO0 (2.5 V to 5.5 V); connect to VANA if LDO0 is not used."+ },+ {+ "number": "29",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "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 exposed thermal pad is listed in Table 5-1 as 'Thermal Pad' with no pin number. It is connected ; The pinout comes from Table 5-1 and Figure 5-1 of the LP8732-Q1 family datasheet. The orderable adde; Pin types are mapped to KiCad classes from the datasheet's P/G/I/O/D/A codes. CLKIN (D/I/O) and SDA ",+ "exposed pad 29 added from the footprint"+ ],+ "pages_sent": 14,+ "cost_usd": 0.0998,+ "at": "2026-10-08T19:47:11"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602584955302264832",+ "pages": 86,+ "sha256": "8824bbdf846706b5",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 29,+ "described": 29,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "lp873248rhdrq1.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 5,+ 5,+ 0.92+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "e9d6d740f505b03e5aa0ac826330f9e269344b84656d051f50eb07ac162749eb",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "lp873248rhdrq1-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 5,+ 5,+ 0.92+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "88b2e229b737620ff6c8cc71f35cd178d8f5be7ca233c8074c61fdd6ff6a4df3",+ "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]"+ }+}