component
LM2853MHX-2.5
Public Made by Adomby adom
Texas Instruments DC-DC Converters, HTSSOP-14-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+52@@ -0,0 +1,52 @@+# LM2853MHX-2.5++**Texas Instruments** · DC-DC Converters · HTSSOP-14-EP++LM2853MHX-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 | Input supply voltage for control logic with operating range 3V to 5.5V per recommended operating conditions |+| 2 | EN | input | Enable control input; regulator enabled when above 75% of AVIN, disabled when below 25% of AVIN |+| 3 | SGND | power_in | Low noise ground reference for control and signal circuitry |+| 4 | SS | input | Soft-start control node; connect 1nF to 50nF external capacitor to set startup ramp time |+| 5 | NC | unconnected | No internal connection; pin must be tied to ground externally |+| 6 | PVIN | power_in | Power supply input for switching stage with operating range 1.5V to 5.5V per recommended operating conditions |+| 7 | PVIN | power_in | Power supply input for switching stage with operating range 1.5V to 5.5V per recommended operating conditions |+| 8 | SW | output | High-frequency switch node output driven by internal synchronous FETs at 550kHz; connect to output filter inductor |+| 9 | SW | output | High-frequency switch node output driven by internal synchronous FETs at 550kHz; connect to output filter inductor |+| 10 | PGND | power_in | Power ground for output stage; connect to ground plane for thermal performance and noise reduction |+| 11 | PGND | power_in | Power ground for output stage; connect to ground plane for thermal performance and noise reduction |+| 12 | NC | unconnected | No internal connection; pin must be tied to ground externally |+| 13 | NC | unconnected | No internal connection; pin must be tied to ground externally |+| 14 | SNS | input | Output voltage feedback sense input with 432kΩ internal resistance; connect to output voltage divider or capacitor ESR node |+| 15 | EP | power_in | Thermal exposed pad internally connected to ground; solder to external ground plane for improved thermal dissipation and regulation performance |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | HTSSOP-14-EP |+| Category | Power Supply Chip |+| Pins | 15 |++## CAD (KiCad official)++- Symbol: `LM2853MHX-2.5`+- Footprint: `Package_SO:TSSOP-14-1EP_4.4x5mm_P0.65mm`+- 3D model: HTSSOP-14-EP (KiCad packages3D, STEP)+- 3D model files: `lm2853mhx-2-5-etched.step` / `lm2853mhx-2-5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2853mhx-2-5.step` / `lm2853mhx-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/lm2853) (26 pp, sha256 `2e1d0a460160f6e1`, retrieved 2026-10-07, 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-4-5-20251001` (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/lm2853mhx-2-5-datasheet.pdf)
page.jsonadded+241@@ -0,0 +1,241 @@+{+ "slug": "lm2853mhx-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",+ "lm2853mhx-2.5",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm2853mhx-2-5.kicad_sym",+ "lm2853mhx-2-5.kicad_mod",+ "lm2853mhx-2-5.glb",+ "lm2853mhx-2-5.step",+ "lm2853mhx-2-5.lbr",+ "docs/hero.png",+ "docs/lm2853mhx-2-5-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lm2853mhx-2-5-hero.glb",+ "lm2853mhx-2-5-hero.overlay.json"+ ],+ "component": {+ "mpn": "LM2853MHX-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/lm2853",+ "parts": {+ "symbol": "lm2853mhx-2-5.kicad_sym",+ "footprint": "lm2853mhx-2-5.kicad_mod",+ "model_3d": "lm2853mhx-2-5-hero.glb",+ "model_3d_plain": "lm2853mhx-2-5.glb",+ "model_3d_step": "lm2853mhx-2-5-etched.step",+ "model_3d_step_plain": "lm2853mhx-2-5.step",+ "lbr": "lm2853mhx-2-5.lbr"+ },+ "distributor_links": {+ "lcsc": "C2072690",+ "digikey": "LM2853MHX-2.5-ND",+ "mouser": "926-LM2853MHX-25"+ },+ "distributor_check": {+ "checked_at": "2026-10-07T02:06:17Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "LM2853MHX-2.5-ND",+ "status": "found",+ "lifecycle": "Obsolete"+ },+ "mouser": {+ "pn": "926-LM2853MHX-25",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "AVIN",+ "type": "power_in",+ "description": "Input supply voltage for control logic with operating range 3V to 5.5V per recommended operating conditions"+ },+ {+ "number": "2",+ "name": "EN",+ "type": "input",+ "description": "Enable control input; regulator enabled when above 75% of AVIN, disabled when below 25% of AVIN"+ },+ {+ "number": "3",+ "name": "SGND",+ "type": "power_in",+ "description": "Low noise ground reference for control and signal circuitry"+ },+ {+ "number": "4",+ "name": "SS",+ "type": "input",+ "description": "Soft-start control node; connect 1nF to 50nF external capacitor to set startup ramp time"+ },+ {+ "number": "5",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection; pin must be tied to ground externally"+ },+ {+ "number": "6",+ "name": "PVIN",+ "type": "power_in",+ "description": "Power supply input for switching stage with operating range 1.5V to 5.5V per recommended operating conditions"+ },+ {+ "number": "7",+ "name": "PVIN",+ "type": "power_in",+ "description": "Power supply input for switching stage with operating range 1.5V to 5.5V per recommended operating conditions"+ },+ {+ "number": "8",+ "name": "SW",+ "type": "output",+ "description": "High-frequency switch node output driven by internal synchronous FETs at 550kHz; connect to output filter inductor"+ },+ {+ "number": "9",+ "name": "SW",+ "type": "output",+ "description": "High-frequency switch node output driven by internal synchronous FETs at 550kHz; connect to output filter inductor"+ },+ {+ "number": "10",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground for output stage; connect to ground plane for thermal performance and noise reduction"+ },+ {+ "number": "11",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground for output stage; connect to ground plane for thermal performance and noise reduction"+ },+ {+ "number": "12",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection; pin must be tied to ground externally"+ },+ {+ "number": "13",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection; pin must be tied to ground externally"+ },+ {+ "number": "14",+ "name": "SNS",+ "type": "input",+ "description": "Output voltage feedback sense input with 432kΩ internal resistance; connect to output voltage divider or capacitor ESR node"+ },+ {+ "number": "15",+ "name": "EP",+ "type": "power_in",+ "description": "Thermal exposed pad internally connected to ground; solder to external ground plane for improved thermal dissipation and regulation performance"+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 26,+ "cost_usd": 0.1705,+ "at": "2026-10-07T02:06:00"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm2853",+ "pages": 26,+ "sha256": "2e1d0a460160f6e1",+ "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": "lm2853mhx-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": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "lm2853mhx-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": "a66dc305d8f61140755257f2090fbffba9c52cf71613c623899df21b6d25ac47",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}