# LM2678S-3.3/NOPB (Component) ## Description Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 5A TO-263-8, D²Pak (7 Leads + Tab), TO-263CA #CommonPartsLibrary #IntegratedCircuit #PowerManagement #Voltage-Regulator #Switching-Regulator #LM2678 ## Component Details - **Owner:** jecstronic - **Created:** 11/17/2023 - **Last Updated:** 11/17/2023 - **Visibility:** Public - **Datasheet URL:** https://www.ti.com/lit/ds/symlink/lm2678.pdf - **License:** https://creativecommons.org/licenses/by/4.0/ - **Manufacturer Name:** Texas Instruments - **Manufacturer Part Number:** LM2678S-3.3/NOPB - **Part Type:** Power Management - **Used in:** 12 projects ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Arrow](https://www.arrow.com/en/products/lm2678s-3.3nopb/texas-instruments?utm_currency=USD&region=asia) | $0.723 | 2 | | [Digi-Key](https://www.digikey.com/en/products/detail/texas-instruments/LM2678S-3-3-NOPB/366918) | $6.69 | 173 | | [LCSC](https://www.lcsc.com/product-detail/C1356419.html) | $8.2987 | 39 | | [Mouser](https://www.mouser.com/ProductDetail/Texas-Instruments/LM2678S-3.3-NOPB?qs=X1J7HmVL2ZGGaq5vT0ZmAQ%3D%3D) | $9.26 | 2K | | [TME](https://www.tme.com/us/en-us/katalog/?queryPhrase=LM2678S-3.3%2FNOPB) | $6.00 | 45 | | [Verical](https://www.verical.com/pd/texas-instruments-dc-dc-converter-LM2678S-3-3-NOPB-629132?utm_currency=USD) | N/A | N/A | - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **Manufacturer:** Texas Instruments - **MPN:** LM2678S-3.3/NOPB - **Package / Case Code:** TO-263 - **Pin Count:** 8 - **Logic Function:** Monitor ## Pins | Pin | Name | Type | |-----|------|------| | 1 | SW_OUT | | | 2 | IN | | | 3 | C_BOOST | | | 4 | GND | | | 5 | NC | | | 6 | FB | | | 7 | ON/~OFF | | | 8 | GND_1 | | --- *Generated from [https://www.flux.ai/jecstronic/lm2678s-3p3nopb~r7x](https://www.flux.ai/jecstronic/lm2678s-3p3nopb~r7x)*