component
LM2676S-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
markdownLM2676S-ADJ
Texas Instruments · DC-DC Converters · TO-263-7
LM2676S-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 | Switch_output | output | Internal high-side FET source pin and switching node; connect to inductor and external diode cathode. |
| 2 | Input | power_in | Power supply input pin; voltage range 8V to 40V, connect input bypass capacitor CIN as close as possible to this pin. |
| 3 | CB | input | Bootstrap capacitor connection pin; connect 100nF quality capacitor between this pin and Switch_output pin. |
| 4 | GND | power_in | Ground pin; connect to system ground and the ground pins of input and output capacitors, minimize trace distance to Input pin. |
| 5 | NC | unconnected | No connection pin. |
| 6 | FB | input | Feedback input pin; reference voltage 1.21V typical for ADJ version, connect to feedback divider midpoint to set output voltage. |
| 7 | ON/OFF | input | Enable control input; voltage above 1.4V enables regulator operation, voltage below 0.8V disables to 50µA standby mode. |
| 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:
LM2676S-ADJ - Footprint:
Package_TO_SOT_SMD:TO-263-7_TabPin8 - 3D model: TO-263-7 (KiCad packages3D, STEP)
- 3D model files:
lm2676s-adj-etched.step/lm2676s-adj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2676s-adj.step/lm2676s-adj.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
e66be2b2a64d67e2, retrieved 2026-10-06, 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).