component
LM2671N-5.0
Public Made by Adomby adom
Texas Instruments DC-DC Converters, PDIP-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
markdownLM2671N-5.0
Texas Instruments · DC-DC Converters · PDIP-8
LM2671N-5.0 from Texas Instruments, in a PDIP-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 | CB | input | Bootstrap capacitor connection for the high-side driver; connect a high-quality 100-nF capacitor from CB to the VSW pin. |
| 2 | SS | input | Soft-start pin; connect a capacitor from this pin to GND to control the output voltage ramp, or leave it floating if the feature is not desired. |
| 3 | SYNC | input | Allows control of the switching clock frequency; if left open-circuited the regulator switches at the internal oscillator frequency, typically 260 kHz. |
| 4 | FB | input | Feedback sense input; connect to the midpoint of the feedback divider to set VOUT for the ADJ version, or connect directly to the output capacitor for a fixed-output version. |
| 5 | ON/OFF | input | Enable input to the regulator: high = ON and low = OFF; pull this pin high or float it to enable the regulator. |
| 6 | GND | power_in | Power ground pin; connect to system ground, keeping the path to the input capacitor CIN as short as possible. |
| 7 | VIN | power_in | Supply input pin feeding the collector of the high-side FET; connect to the power supply and input bypass capacitor CIN, with the VIN-to-CIN-to-GND path kept as short as possible. |
| 8 | VSW | output | Source pin of the internal high-side FET and the switching node; attach to the inductor and the cathode of the external diode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | PDIP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM2671N-5.0 - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: PDIP-8 (KiCad packages3D, STEP)
- 3D model files:
lm2671n-5-0-etched.step/lm2671n-5-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2671n-5-0.step/lm2671n-5-0.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
3002d970b17265d0, retrieved 2026-10-08, tier: lcsc) - 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).