component
LM34927MR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# LM34927MR++**Texas Instruments** · DC-DC Converters · SO-8++LM34927MR from Texas Instruments, in a SO-8. 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 | RTN | power_in | Ground connection of the integrated circuit; the exposed pad must be connected to this pin. |+| 2 | VIN | power_in | Input voltage with an operating input range of 7.5 V to 100 V; the RON resistor connects between this pin and RON to set on-time. |+| 3 | UVLO | input | Input to the undervoltage comparator; a resistor divider from VIN to UVLO to GND sets the undervoltage threshold, and pulling it below 0.66 V externally puts the part in shutdown. |+| 4 | RON | input | On-time control; a resistor between this pin and VIN sets the switch on-time as a function of VIN, with a minimum recommended on-time of 100 ns at maximum input voltage. |+| 5 | FB | input | Feedback pin connected to the inverting input of the internal regulation comparator, with a regulation level of 1.225 V. |+| 6 | VCC | power_out | Output of the internal high-voltage series pass regulator, regulated at 7.6 V, which biases the gate drivers and internal circuitry and requires a 1.0 µF decoupling capacitor. |+| 7 | BST | input | Bootstrap pin; a 0.01 µF ceramic capacitor is required between BST and SW, charged by VCC through an internal diode when SW is low. |+| 8 | SW | output | Power switching node that connects to the output inductor and the bootstrap capacitor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SO-8 |+| Category | Power Management (PMIC) |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `LM34927MR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SO-8 (KiCad packages3D, STEP)+- 3D model files: `lm34927mr-etched.step` / `lm34927mr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm34927mr.step` / `lm34927mr.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/lm34927) (34 pp, sha256 `d9409c664f8b501b`, 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/lm34927mr-datasheet.pdf)
page.jsonadded+197@@ -0,0 +1,197 @@+{+ "slug": "lm34927mr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lm34927mr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm34927mr.kicad_sym",+ "lm34927mr.kicad_mod",+ "lm34927mr.glb",+ "lm34927mr.step",+ "lm34927mr.lbr",+ "docs/hero.png",+ "docs/lm34927mr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lm34927mr-hero.glb",+ "lm34927mr-hero.overlay.json"+ ],+ "component": {+ "mpn": "LM34927MR",+ "manufacturer": "Texas Instruments",+ "package": "SO-8",+ "pin_count": 8,+ "category": "Power Management (PMIC)",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lm34927",+ "parts": {+ "symbol": "lm34927mr.kicad_sym",+ "footprint": "lm34927mr.kicad_mod",+ "model_3d": "lm34927mr-hero.glb",+ "model_3d_plain": "lm34927mr.glb",+ "model_3d_step": "lm34927mr-etched.step",+ "model_3d_step_plain": "lm34927mr.step",+ "lbr": "lm34927mr.lbr"+ },+ "distributor_links": {+ "lcsc": "C1355638"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T14:33:56Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": null,+ "status": "no match"+ },+ "mouser": {+ "pn": null,+ "status": "no match"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "RTN",+ "type": "power_in",+ "description": "Ground connection of the integrated circuit; the exposed pad must be connected to this pin."+ },+ {+ "number": "2",+ "name": "VIN",+ "type": "power_in",+ "description": "Input voltage with an operating input range of 7.5 V to 100 V; the RON resistor connects between this pin and RON to set on-time."+ },+ {+ "number": "3",+ "name": "UVLO",+ "type": "input",+ "description": "Input to the undervoltage comparator; a resistor divider from VIN to UVLO to GND sets the undervoltage threshold, and pulling it below 0.66 V externally puts the part in shutdown."+ },+ {+ "number": "4",+ "name": "RON",+ "type": "input",+ "description": "On-time control; a resistor between this pin and VIN sets the switch on-time as a function of VIN, with a minimum recommended on-time of 100 ns at maximum input voltage."+ },+ {+ "number": "5",+ "name": "FB",+ "type": "input",+ "description": "Feedback pin connected to the inverting input of the internal regulation comparator, with a regulation level of 1.225 V."+ },+ {+ "number": "6",+ "name": "VCC",+ "type": "power_out",+ "description": "Output of the internal high-voltage series pass regulator, regulated at 7.6 V, which biases the gate drivers and internal circuitry and requires a 1.0 µF decoupling capacitor."+ },+ {+ "number": "7",+ "name": "BST",+ "type": "input",+ "description": "Bootstrap pin; a 0.01 µF ceramic capacitor is required between BST and SW, charged by VCC through an internal diode when SW is low."+ },+ {+ "number": "8",+ "name": "SW",+ "type": "output",+ "description": "Power switching node that connects to the output inductor and the bootstrap capacitor."+ }+ ],+ "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 user's package hint was SO-8, but the MPN LM34927MR is sold as the 8-pin SO PowerPAD (DDA) packa; The exposed thermal pad (EP) is listed in the pin table without a numeric pin number, so it is not i"+ ],+ "pages_sent": 9,+ "cost_usd": 0.0541,+ "at": "2026-10-08T14:33:30"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm34927",+ "pages": 34,+ "sha256": "d9409c664f8b501b",+ "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": "lm34927mr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 4.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "lm34927mr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 4.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "7920aa7949757457411b0a780535ab0b9461672dbd03eaa1c9afa2186f5e3e72",+ "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]"+ }+}