component
LM22670MR-5.0
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.
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
markdownLM22670MR-5.0
Texas Instruments · DC-DC Converters · SO-8
LM22670MR-5.0 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 | BOOT | input | Bootstrap input that provides the gate voltage for the high-side NFET; the pin is not electrically connected inside the chip. |
| 2 | NC | unconnected | Not connected inside the device, but the pin functions as a thermal conductor to the PCB. |
| 3 | RT/SYNC | input | Switching frequency adjustment and synchronization input: a single external resistor sets the frequency from 200 kHz to 1 MHz, and the internal oscillator can synchronize to a system clock or another regulator's oscillator. |
| 4 | FB | input | Feedback input to the regulator. |
| 5 | EN | input | Precision enable input that controls regulator start-up, shut-down and UVLO; the EN pin voltage absolute maximum is 6 V (-0.5 V minimum). |
| 6 | GND | power_in | Ground input to the regulator and system ground pin. |
| 7 | VIN | power_in | Supply input to the regulator; the recommended VIN supply range is 4.5 V to 42 V. |
| 8 | SW | output | Switching output of the regulator; absolute maximum SW to GND is -5 V DC (-10 V for pulses up to 50 ns) up to VIN. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SO-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM22670MR-5.0 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
lm22670mr-5-0-etched.step/lm22670mr-5-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm22670mr-5-0.step/lm22670mr-5-0.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (38 pp, sha256
5d2cd199b79fcc67, 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, primaryclaude-haiku-5-5(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).