# Buck Converter ## Description This is a voltage regulator. It steps down an input DC voltage of up to 40V to a stable output voltage of 3.3V with a maximum output current of 3A. ## Project Details - **Owner:** frankzhu - **Created:** 3/25/2025 - **Last Updated:** 3/26/2025 - **Visibility:** Public - **max output current:** 3A - **Max Output Voltage:** 3.3V - **Max Input Voltage:** 20V ## Key Components ### D1 — [SS34](https://www.flux.ai/lcsc/ss34~6q67.md) - Diode Type: Schottky - JLCPCB Part Class: Extended Part - Forward Voltage: 0.3V to 0.45V - Manufacturer Part Number: SS34 - LCSC Part Number: C2758511 - Manufacturer Name: UMW(友台半导体) - Reverse Voltage: 40V - Package or Case Code: SMB_L4.3-W3.6-LS5.4-RD - Part Type: Schottky Barrier Diodes (SBD) **Pins:** - A [pin 2] - K [pin 1] ### J1 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J2 — [TerminalBlock-01x02P-5.00mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-500mm~h4.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### U1 — [LM2596DSADJR4G](https://www.flux.ai/adrian95/lm2596dsadjr4g~ly6.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: onsemi - Manufacturer Part Number: LM2596DSADJR4G - Datasheet URL: https://www.onsemi.com/pdf/datasheet/lm2596-d.pdf - Part Type: Integrated Circuit **Pins:** - ~ON~/OFF [pin 5] - EPAD [pin 6] - FB [pin 4] - GND [pin 3] - OUT [pin 2] - VIN [pin 1] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/frankzhu/buck-converter~zg](https://www.flux.ai/frankzhu/buck-converter~zg).* --- *Generated from [https://www.flux.ai/frankzhu/buck-converter~zg](https://www.flux.ai/frankzhu/buck-converter~zg)*