MCP2542 MCP2542 CLICK MCP2542FD-E/MF MCP2542FD-E/SN MCP2542FD-E/SNVAO MCP2542FD-H/SN MCP2542FDT MCP2542FDT-E MCP2542FDT-E/MF MCP2542FDT-E/MFVAO