component
LM22679TJ-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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM22679TJ-ADJ
Texas Instruments · DC-DC Converters · TO-263-7
LM22679TJ-ADJ from Texas Instruments, in a TO-263-7. 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 | SW | output | Switch output of regulator producing rectangular waveform switching between approximately 0V and VIN at 500kHz nominal switching frequency. |
| 2 | VIN | power_in | Supply input voltage to regulator with operating range of 4.5V to 42V and internal UVLO at 4.3V rising threshold typical. |
| 3 | BOOT | input | Bootstrap input providing gate voltage to high-side NFET; connect 10nF ceramic capacitor between BOOT and SW pins with maximum voltage rating of VSW plus 7V. |
| 4 | GND | power_in | Ground reference and system common for regulator. |
| 5 | IADJ | input | Current limit adjust input pin; resistor to ground sets peak switch current threshold with default limit of 7.1A typical when pin is floating above 0.8V internal threshold. |
| 6 | FB | input | Feedback input to regulator; for -ADJ version reference voltage is 1.285V with ±1.5% accuracy over operating temperature range -40°C to 125°C. |
| 7 | SS | output | Soft-start output pin driven by internal current source of approximately 50µA; external capacitor to ground extends soft-start time approximately 26ms per µF. |
| 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:
LM22679TJ-ADJ - Footprint:
Package_TO_SOT_SMD:TO-263-7_TabPin8 - 3D model: TO-263-7 (KiCad packages3D, STEP)
- 3D model files:
lm22679tj-adj-etched.step/lm22679tj-adj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm22679tj-adj.step/lm22679tj-adj.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (31 pp, sha256
cc2febdbf7c962c3, retrieved 2026-09-26, 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).