To design a PCB using Altium ECAD software for a low dropout voltage regulator (LDO) for 5V input, stepping down to 3.3V

Challenge:

• Creating a workspace for MIC33030_3V3
• Defining a PCB board size of 40mm x 40mm for a 2 layer PCB
• PCB clearance to be set as 0.2mm and track width to be 0.3mm for power line and 0.2mm for rest of the circuit
• Following the block diagram provided for creating the schematic and using the datasheet for creating the footprint and symbol.
• Molex 3 pin 2.54mm connector on the input and 2 pin connector on the output
• Identifying the key points to consider for PCB design datasheet
• Assemble and route the components as recommended by the datasheet
• Add 4 mounting holes (3mm) on all corners with 2 fiducials diagonally opposite
• PCB board with the text (“DC-DC Power Supply – Rev1”)
• Input connector – text “Input 5V” “Ground” and “Enable”, Output connector – text “Output - 3.3V” “Ground”
• Copper pour added on the top and bottom layer for ground net and all passive components with thermal relief

To design a double sided USB type C to RJ45 ethernet interface PCB utilising bus-powered following the length matching of the high speed signals and EMC/EMI complaint.

Challenge:

• Creating a workspace for LAN7800 in altium
• Defining a PCB board size using the DXF data provided
• PCB clearance to be set as 0.15mm and track width to be 0.2mm for power line and 0.15mm for rest of the circuit
• Following the block diagram provided for creating the schematic and using the datasheet for creating the footprint and symbol.
• Use Saturn PCB tool to find the values for 100ohm impedance for the high speed differential pair signals
• Set PCB to 4 layer following the board stackup provided
• Identifying the key points to consider for PCB design using the datasheet
• Assemble and route the components as recommended by the datasheet
• Place the components on both the sides of the PCB and tracking on both sides.
• Add 2 fiducials diagonally opposite
• PCB board with the text (“Ethernet Interface”)
• Generate 3D files for all the components and a 3D view.
• Generate PCB panel of 150mm x 150mm and place as many circuits as possible and follow routed method using mouse bites
• Generate complete output files for DFM and DFA (Gerber, Altium draftsman, X Y data, BOM, assembly diagram, fabrication diagram)