component
LM22670TJ-ADJ
Public Made by Adomby adom
Texas Instruments DC-DC Converters, TO-263-7. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# LM22670TJ-ADJ++**Texas Instruments** · DC-DC Converters · TO-263-7++LM22670TJ-ADJ from Texas Instruments, in a TO-263-7. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | SW | output | Switching output of regulator that oscillates between 0V and VIN at the switching frequency, driving the external freewheeling diode and power inductor in the buck converter topology. |+| 2 | VIN | power_in | Supply input to the regulator with operating range 4.5V to 42V and absolute maximum rating of 43V; bypass with low-ESR ceramic capacitors. |+| 3 | BOOT | input | Bootstrap capacitor input providing gate drive voltage for the high-side N-channel power MOSFET; requires 10nF ceramic capacitor connected between BOOT and SW pins with absolute maximum voltage of VSW + 7V. |+| 4 | GND | power_in | System ground reference and return path for all regulator currents; connect to exposed thermal pad on package bottom with multiple vias for heat dissipation. |+| 5 | RT/SYNC | input | Switching frequency adjustment or external synchronization input supporting three modes: float for 500kHz internal oscillator, 25kΩ-200kΩ resistor to ground for 200kHz-1MHz frequency adjustment, or external clock for up to 1MHz synchronization; absolute voltage range -0.5V to 7V. |+| 6 | FB | input | Feedback input to error amplifier for closed-loop voltage regulation; internal reference voltage is 1.285V typical for -ADJ version with ±1.5% accuracy over -40°C to 125°C; absolute voltage range -0.5V to 7V. |+| 7 | EN | input | Enable input for regulator on/off control and power sequencing with precision threshold of 1.6V typical; regulator turns on when EN exceeds 1.6V with 0.6V hysteresis; absolute voltage range -0.5V to 6V. |+| 8 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TO-263-7 |+| Category | Power Management (PMIC) |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `LM22670TJ-ADJ`+- Footprint: `Package_TO_SOT_SMD:TO-263-7_TabPin8`+- 3D model: TO-263-7 (KiCad packages3D, STEP)+- 3D model files: `lm22670tj-adj-etched.step` / `lm22670tj-adj-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm22670tj-adj.step` / `lm22670tj-adj.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/lm22670) (38 pp, sha256 `5d2cd199b79fcc67`, retrieved 2026-09-23, 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 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/lm22670tj-adj-datasheet.pdf)
page.jsonadded+143@@ -0,0 +1,143 @@+{+ "slug": "lm22670tj-adj",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, TO-263-7. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lm22670tj-adj",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm22670tj-adj.kicad_sym",+ "lm22670tj-adj.kicad_mod",+ "lm22670tj-adj.glb",+ "lm22670tj-adj.step",+ "lm22670tj-adj.lbr",+ "docs/hero.png",+ "docs/lm22670tj-adj-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LM22670TJ-ADJ",+ "manufacturer": "Texas Instruments",+ "package": "TO-263-7",+ "pin_count": 8,+ "category": "Power Management (PMIC)",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lm22670",+ "parts": {+ "symbol": "lm22670tj-adj.kicad_sym",+ "footprint": "lm22670tj-adj.kicad_mod",+ "model_3d": "lm22670tj-adj-etched.glb",+ "model_3d_plain": "lm22670tj-adj.glb",+ "model_3d_step": "lm22670tj-adj-etched.step",+ "model_3d_step_plain": "lm22670tj-adj.step",+ "lbr": "lm22670tj-adj.lbr"+ },+ "distributor_links": {+ "lcsc": "C543006"+ },+ "pins": [+ {+ "number": "1",+ "name": "SW",+ "type": "output",+ "description": "Switching output of regulator that oscillates between 0V and VIN at the switching frequency, driving the external freewheeling diode and power inductor in the buck converter topology."+ },+ {+ "number": "2",+ "name": "VIN",+ "type": "power_in",+ "description": "Supply input to the regulator with operating range 4.5V to 42V and absolute maximum rating of 43V; bypass with low-ESR ceramic capacitors."+ },+ {+ "number": "3",+ "name": "BOOT",+ "type": "input",+ "description": "Bootstrap capacitor input providing gate drive voltage for the high-side N-channel power MOSFET; requires 10nF ceramic capacitor connected between BOOT and SW pins with absolute maximum voltage of VSW + 7V."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "System ground reference and return path for all regulator currents; connect to exposed thermal pad on package bottom with multiple vias for heat dissipation."+ },+ {+ "number": "5",+ "name": "RT/SYNC",+ "type": "input",+ "description": "Switching frequency adjustment or external synchronization input supporting three modes: float for 500kHz internal oscillator, 25kΩ-200kΩ resistor to ground for 200kHz-1MHz frequency adjustment, or external clock for up to 1MHz synchronization; absolute voltage range -0.5V to 7V."+ },+ {+ "number": "6",+ "name": "FB",+ "type": "input",+ "description": "Feedback input to error amplifier for closed-loop voltage regulation; internal reference voltage is 1.285V typical for -ADJ version with ±1.5% accuracy over -40°C to 125°C; absolute voltage range -0.5V to 7V."+ },+ {+ "number": "7",+ "name": "EN",+ "type": "input",+ "description": "Enable input for regulator on/off control and power sequencing with precision threshold of 1.6V typical; regulator turns on when EN exceeds 1.6V with 0.6V hysteresis; absolute voltage range -0.5V to 6V."+ },+ {+ "number": "8",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "exposed pad 8 added from the footprint"+ ],+ "pages_sent": 38,+ "cost_usd": 0.4328,+ "at": "2026-09-23T13:37:25"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm22670",+ "pages": 38,+ "sha256": "5d2cd199b79fcc67",+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}