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LM22673TJ-5.0

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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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LM22673TJ-5.0

Texas Instruments · DC-DC Converters · TO-263-7

LM22673TJ-5.0 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 Switching output of the regulator; DC SW-to-GND is limited to -5 V up to VIN, with -10 V allowed for pulses up to 50 ns.
2 VIN power_in Supply input to the regulator; recommended VIN is 4.5 V to 42 V, and the absolute maximum VIN to GND is 43 V.
3 BOOT input Bootstrap input that provides the gate voltage for the high-side NFET; boot pin voltage is limited to VSW + 7 V.
4 GND power_in System ground pin and common reference for the regulator.
5 IADJ input Current limit adjust input; a resistor from this pin to GND sets the current limit threshold, and the pin can be left floating for the internal default. Pin voltage is limited to -0.5 V to 7 V.
6 FB input Feedback input to the regulator; pin voltage is limited to -0.5 V to 7 V.
7 SS passive Soft-start pin; an external capacitor on this pin increases the soft-start time. Pin voltage is limited to -0.5 V to 7 V.
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: LM22673TJ-5.0
  • Footprint: Package_TO_SOT_SMD:TO-263-7_TabPin8
  • 3D model: TO-263-7 (KiCad packages3D, STEP)
  • 3D model files: lm22673tj-5-0-etched.step / lm22673tj-5-0-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm22673tj-5-0.step / lm22673tj-5-0.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (35 pp, sha256 5254d1f406555d9b, 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