# LM2678SD-5.0 reference design ## Description This LM2678SD-5.0 reference design is a step-down voltage regulator providing a stable 5V output from a higher input voltage. It uses capacitors, an inductor, and a diode for filtering and protection, with an ON/OFF terminal for control. Ideal for applications needing a regulated 5V supply. #referenceDesign #project #stepDown #voltageRegulator #5V #powermanagement #texas-instruments #template#reference-design #polygon ## Project Details - **Owner:** vasy_skral - **Created:** 5/15/2023 - **Last Updated:** 3/6/2026 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ - **Copies:** 8 ## Key Components ### D1 — [PDS760-13](https://www.flux.ai/vasy_skral/pds760-13~tul.md) - Part Type: Diode - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.diodes.com/assets/Datasheets/ds30477.pdf - Manufacturer Part Number: PDS760-13 - Manufacturer Name: Diodes Incorporated **Pins:** - A1 [pin 2] - A2 [pin 3] - K [pin 1] ### U1 — [LM2678SD-5.0](https://www.flux.ai/vasy_skral/lm2678sd-5p0~8m.md) - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm2678.pdf - Manufacturer Part Number: LM2678SD-5.0/NOPB **Pins:** - BOOST [pin 4] - EP [pin 15] - FB [pin 7] - GND [pin 9] - NC [pin 1] - NC_2 [pin 10] - NC_3 [pin 11] - NC_4 [pin 5] - NC_5 [pin 6] - ON/~OFF [pin 8] - SW [pin 14] - SW_2 [pin 12] - SW_3 [pin 13] - VIN [pin 3] - VIN_2 [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/vasy_skral/lm2678sd-5p0-reference-design~wp6](https://www.flux.ai/vasy_skral/lm2678sd-5p0-reference-design~wp6).* --- *Generated from [https://www.flux.ai/vasy_skral/lm2678sd-5p0-reference-design~wp6](https://www.flux.ai/vasy_skral/lm2678sd-5p0-reference-design~wp6)*