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Initial commit: component/lm2852ymxax-2-5

Ray ·1c2af2c483 ·15h ago
2 files changed +296
README.mdadded+52
@@ -0,0 +1,52 @@+# LM2852YMXAX-2.5++**Texas Instruments** · DC-DC Converters · HTSSOP-14-EP++LM2852YMXAX-2.5 from Texas Instruments, in a HTSSOP-14-EP. 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 | AVIN | power_in | Chip bias input that powers the chip logic; connect it to the input voltage or a separate rail. |+| 2 | EN | input | Enable input: connect to ground to disable the chip, connect to AVIN or leave floating to enable it; the pin is internally pulled up. |+| 3 | SGND | power_in | Signal ground for the control circuitry. |+| 4 | SS | input | Soft-start pin: connect a small capacitor here to control startup, with the capacitance restricted to 1 nF to 50 nF. |+| 5 | NC | unconnected | No connect; must be tied to ground or left floating in the application. |+| 6 | PVIN | power_in | Input supply pin connected to the input voltage; it feeds the source of the internal power PFET. |+| 7 | PVIN | power_in | Input supply pin connected to the input voltage; it feeds the source of the internal power PFET. |+| 8 | SW | output | Switch node pin; connect to the output inductor. |+| 9 | SW | output | Switch node pin; connect to the output inductor. |+| 10 | PGND | power_in | Power ground; connect to an internal ground plane or other large ground plane. |+| 11 | PGND | power_in | Power ground; connect to an internal ground plane or other large ground plane. |+| 12 | NC | unconnected | No connect; must be tied to ground or left floating in the application. |+| 13 | NC | unconnected | No connect; must be tied to ground or left floating in the application. |+| 14 | SNS | input | Output voltage sense pin; connect it to the output voltage as close to the load as possible. |+| 15 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | HTSSOP-14-EP |+| Category | Power Supply Chip |+| Pins | 15 |++## CAD (KiCad official)++- Symbol: `LM2852YMXAX-2.5`+- Footprint: `Package_SO:TSSOP-14-1EP_4.4x5mm_P0.65mm`+- 3D model: HTSSOP-14-EP (KiCad packages3D, STEP)+- 3D model files: `lm2852ymxax-2-5-etched.step` / `lm2852ymxax-2-5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2852ymxax-2-5.step` / `lm2852ymxax-2-5.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/lm2852) (31 pp, sha256 `a151270f4e87c234`, 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/lm2852ymxax-2-5-datasheet.pdf)
page.jsonadded+244
@@ -0,0 +1,244 @@+{+  "slug": "lm2852ymxax-2-5",+  "version": "0.1.0",+  "type": "component",+  "description": "Texas Instruments DC-DC Converters, HTSSOP-14-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "power supply chip",+    "lm2852ymxax-2.5",+    "factory-2.0.0",+    "extractor-text"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "lm2852ymxax-2-5.kicad_sym",+    "lm2852ymxax-2-5.kicad_mod",+    "lm2852ymxax-2-5.glb",+    "lm2852ymxax-2-5.step",+    "lm2852ymxax-2-5.lbr",+    "docs/hero.png",+    "docs/lm2852ymxax-2-5-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html",+    "lm2852ymxax-2-5-hero.glb",+    "lm2852ymxax-2-5-hero.overlay.json"+  ],+  "component": {+    "mpn": "LM2852YMXAX-2.5",+    "manufacturer": "Texas Instruments",+    "package": "HTSSOP-14-EP",+    "pin_count": 15,+    "category": "Power Supply Chip",+    "subcategory": "DC-DC Converters",+    "datasheet": "https://www.ti.com/cn/lit/gpn/lm2852",+    "parts": {+      "symbol": "lm2852ymxax-2-5.kicad_sym",+      "footprint": "lm2852ymxax-2-5.kicad_mod",+      "model_3d": "lm2852ymxax-2-5-hero.glb",+      "model_3d_plain": "lm2852ymxax-2-5.glb",+      "model_3d_step": "lm2852ymxax-2-5-etched.step",+      "model_3d_step_plain": "lm2852ymxax-2-5.step",+      "lbr": "lm2852ymxax-2-5.lbr"+    },+    "distributor_links": {+      "lcsc": "C2071460",+      "digikey": "LM2852YMXAX-2.5-ND",+      "mouser": "926-LM2852YMXAX-25"+    },+    "distributor_check": {+      "checked_at": "2026-10-08T15:28:50Z",+      "source": "Component Ocean /api/assign-pns",+      "digikey": {+        "pn": "LM2852YMXAX-2.5-ND",+        "status": "found",+        "lifecycle": "Obsolete"+      },+      "mouser": {+        "pn": "926-LM2852YMXAX-25",+        "status": "found",+        "lifecycle": "Obsolete"+      }+    },+    "pins": [+      {+        "number": "1",+        "name": "AVIN",+        "type": "power_in",+        "description": "Chip bias input that powers the chip logic; connect it to the input voltage or a separate rail."+      },+      {+        "number": "2",+        "name": "EN",+        "type": "input",+        "description": "Enable input: connect to ground to disable the chip, connect to AVIN or leave floating to enable it; the pin is internally pulled up."+      },+      {+        "number": "3",+        "name": "SGND",+        "type": "power_in",+        "description": "Signal ground for the control circuitry."+      },+      {+        "number": "4",+        "name": "SS",+        "type": "input",+        "description": "Soft-start pin: connect a small capacitor here to control startup, with the capacitance restricted to 1 nF to 50 nF."+      },+      {+        "number": "5",+        "name": "NC",+        "type": "unconnected",+        "description": "No connect; must be tied to ground or left floating in the application."+      },+      {+        "number": "6",+        "name": "PVIN",+        "type": "power_in",+        "description": "Input supply pin connected to the input voltage; it feeds the source of the internal power PFET."+      },+      {+        "number": "7",+        "name": "PVIN",+        "type": "power_in",+        "description": "Input supply pin connected to the input voltage; it feeds the source of the internal power PFET."+      },+      {+        "number": "8",+        "name": "SW",+        "type": "output",+        "description": "Switch node pin; connect to the output inductor."+      },+      {+        "number": "9",+        "name": "SW",+        "type": "output",+        "description": "Switch node pin; connect to the output inductor."+      },+      {+        "number": "10",+        "name": "PGND",+        "type": "power_in",+        "description": "Power ground; connect to an internal ground plane or other large ground plane."+      },+      {+        "number": "11",+        "name": "PGND",+        "type": "power_in",+        "description": "Power ground; connect to an internal ground plane or other large ground plane."+      },+      {+        "number": "12",+        "name": "NC",+        "type": "unconnected",+        "description": "No connect; must be tied to ground or left floating in the application."+      },+      {+        "number": "13",+        "name": "NC",+        "type": "unconnected",+        "description": "No connect; must be tied to ground or left floating in the application."+      },+      {+        "number": "14",+        "name": "SNS",+        "type": "input",+        "description": "Output voltage sense pin; connect it to the output voltage as close to the load as possible."+      },+      {+        "number": "15",+        "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 on the HTSSOP-14-EP package is not given a printed pin number in the datashe; The datasheet's Pin Functions table lists SNS as I/O type 'O', but its function is voltage sensing o; Pin numbers and functions are identical across all LM2852 PWP variants, so the pinout applies to LM2",+          "exposed pad 15 added from the footprint"+        ],+        "pages_sent": 12,+        "cost_usd": 0.0769,+        "at": "2026-10-08T15:28:35"+      },+      "datasheet": {+        "url": "https://www.ti.com/cn/lit/gpn/lm2852",+        "pages": 31,+        "sha256": "a151270f4e87c234",+        "source_tier": "lcsc"+      },+      "cad": "KiCad official (CC-BY-SA 4.0)",+      "pins": {+        "total": 15,+        "described": 15,+        "cites_pages": true,+        "refuses_to_fabricate": true+      }+    },+    "viewers": {+      "symbol": "viewers/symbol.html",+      "footprint": "viewers/footprint.html"+    },+    "models_3d": [+      {+        "file": "lm2852ymxax-2-5.step",+        "role": "plain",+        "up": "Z",+        "units": "mm",+        "origin": "footprint origin = pad-pattern centre",+        "seat": "z = 0",+        "extents_mm": [+          7.35,+          5,+          1.05+        ],+        "zmin_mm": 0,+        "centre_offset_mm": 0,+        "footprint_binding": "identity",+        "sha256": "e73930af88609deacee2bde98223bb9da2411f0cebb494015de765f0df216789",+        "checked": "2026-10-08",+        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+      },+      {+        "file": "lm2852ymxax-2-5-etched.step",+        "role": "eda",+        "up": "Z",+        "units": "mm",+        "origin": "footprint origin = pad-pattern centre",+        "seat": "z = 0",+        "extents_mm": [+          7.35,+          5,+          1.05+        ],+        "zmin_mm": 0,+        "centre_offset_mm": 0,+        "footprint_binding": "identity",+        "sha256": "32e71c57dabfeb9734045f8a73f78ee3af63f6d530f0a4b6d5d73c68992b803a",+        "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]"+  }+}\ No newline at end of file