component
LMR61428XMMX
Public Made by Adomby adom
Texas Instruments DC-DC Converters, VSSOP-8-0.65mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# LMR61428XMMX++**Texas Instruments** · DC-DC Converters · VSSOP-8-0.65mm++LMR61428XMMX from Texas Instruments, in a VSSOP-8-0.65mm. 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 | PGND | power_in | Power ground return for power stage circuits. |+| 2 | EN | input | Active-low shutdown input; regulator disabled below 0.15×VDD, enabled above 0.7×VDD; absolute maximum rating -0.5V to 10V. |+| 3 | FREQ | input | Frequency programming input; external resistor connected between FREQ and VDD sets switching frequency from 300kHz to 2MHz; 100µA maximum current rating. |+| 4 | FB | input | Output voltage feedback input from resistor divider for regulated output voltage 1.24V to 14V; typical pin voltage 1.24V; absolute maximum rating -0.5V to 10V. |+| 5 | SGND | power_in | Signal ground for feedback and control circuits. |+| 6 | VDD | power_in | Power supply input for internal control circuitry; operating range 2.5V to 5V; absolute maximum rating -0.5V to 10V. |+| 7 | BOOT | power_in | Bootstrap supply input for MOSFET gate driver; operating range 0V to 10V; absolute maximum rating -0.5V to 10V. |+| 8 | SW | output | Drain of internal N-channel MOSFET power switch; boost converter switching node connecting to inductor and freewheeling diode; absolute maximum rating -0.5V to 14.5V with 2.85A peak switch current limit. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VSSOP-8-0.65mm |+| Category | Power Supply Chip |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `LMR61428XMMX`+- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`+- 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)+- 3D model files: `lmr61428xmmx-etched.step` / `lmr61428xmmx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lmr61428xmmx.step` / `lmr61428xmmx.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/lmr61428) (22 pp, sha256 `d55e65d8766ee830`, retrieved 2026-10-07, tier: lcsc)+- **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/lmr61428xmmx-datasheet.pdf)
page.jsonadded+197@@ -0,0 +1,197 @@+{+ "slug": "lmr61428xmmx",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, VSSOP-8-0.65mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power supply chip",+ "lmr61428xmmx",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lmr61428xmmx.kicad_sym",+ "lmr61428xmmx.kicad_mod",+ "lmr61428xmmx.glb",+ "lmr61428xmmx.step",+ "lmr61428xmmx.lbr",+ "docs/hero.png",+ "docs/lmr61428xmmx-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lmr61428xmmx-hero.glb",+ "lmr61428xmmx-hero.overlay.json"+ ],+ "component": {+ "mpn": "LMR61428XMMX",+ "manufacturer": "Texas Instruments",+ "package": "VSSOP-8-0.65mm",+ "pin_count": 8,+ "category": "Power Supply Chip",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lmr61428",+ "parts": {+ "symbol": "lmr61428xmmx.kicad_sym",+ "footprint": "lmr61428xmmx.kicad_mod",+ "model_3d": "lmr61428xmmx-hero.glb",+ "model_3d_plain": "lmr61428xmmx.glb",+ "model_3d_step": "lmr61428xmmx-etched.step",+ "model_3d_step_plain": "lmr61428xmmx.step",+ "lbr": "lmr61428xmmx.lbr"+ },+ "distributor_links": {+ "lcsc": "C2072491"+ },+ "distributor_check": {+ "checked_at": "2026-10-07T08:01:10Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": null,+ "status": "no match"+ },+ "mouser": {+ "pn": null,+ "status": "no match"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground return for power stage circuits."+ },+ {+ "number": "2",+ "name": "EN",+ "type": "input",+ "description": "Active-low shutdown input; regulator disabled below 0.15×VDD, enabled above 0.7×VDD; absolute maximum rating -0.5V to 10V."+ },+ {+ "number": "3",+ "name": "FREQ",+ "type": "input",+ "description": "Frequency programming input; external resistor connected between FREQ and VDD sets switching frequency from 300kHz to 2MHz; 100µA maximum current rating."+ },+ {+ "number": "4",+ "name": "FB",+ "type": "input",+ "description": "Output voltage feedback input from resistor divider for regulated output voltage 1.24V to 14V; typical pin voltage 1.24V; absolute maximum rating -0.5V to 10V."+ },+ {+ "number": "5",+ "name": "SGND",+ "type": "power_in",+ "description": "Signal ground for feedback and control circuits."+ },+ {+ "number": "6",+ "name": "VDD",+ "type": "power_in",+ "description": "Power supply input for internal control circuitry; operating range 2.5V to 5V; absolute maximum rating -0.5V to 10V."+ },+ {+ "number": "7",+ "name": "BOOT",+ "type": "power_in",+ "description": "Bootstrap supply input for MOSFET gate driver; operating range 0V to 10V; absolute maximum rating -0.5V to 10V."+ },+ {+ "number": "8",+ "name": "SW",+ "type": "output",+ "description": "Drain of internal N-channel MOSFET power switch; boost converter switching node connecting to inductor and freewheeling diode; absolute maximum rating -0.5V to 14.5V with 2.85A peak switch current limit."+ }+ ],+ "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": [+ "extractor flagged: PGND (Pin 1) and SGND (Pin 5) ground reference pins do not have explicit absolute maximum voltage ra"+ ],+ "pages_sent": 22,+ "cost_usd": 0.1317,+ "at": "2026-10-07T08:00:55"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lmr61428",+ "pages": 22,+ "sha256": "d55e65d8766ee830",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "lmr61428xmmx.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3.1,+ 2,+ 0.85+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "353552981eef35cb93635057d4aeb89aef22648c77af6fd095e328bfe6b834bd",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "lmr61428xmmx-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3.1,+ 2,+ 0.85+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "0d10f90399f477b3b343a7d10bd4ed106ec492a5d8bbf72faab87ee30d0ac45f",+ "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]"+ }+}