• USB – Universal Serial Bus
• Present on most Laptops, Desktops, Tablets, Mobile phones and charging devices
• Passive USB simply provides data
• Well established technology
• Reliable
• Now capable of delivering power, data and video capability over one connector
• Very easy to configure and use
• Older generation USB2.0 run at 480Mbps over 4m
• Newer generations such as USB3.0 Gen1 run at 5Gbps over 1m
• USB3.1 Gen2 provides 10Gbps @ over 1m
• USB4.0 (USB-C) provides 40Gbps over 0.8m and support

upto 100W over power transfer

• Relates to interconnection format more than anything
• Oval connector, allows insertion in either direction
• Compatible with Thunderbolt (Intel) and Lightning (Apple) connectors
• Ultimately the objective is to have one interface through which all electronic devices can be charged, powered and operated (data Tx/Rx)
• All new Apple laptops are being built with USB-C capability only
• By the way “PD” used in the context of USB relates to “Power Delivery”… not to be confused with PoE PD (… Powered Device) !!!

• High Efficiency Buck Converter (Typ. 95%)
• Wide Input Voltage Range 4.5V to 28V
• Optimised to operate with USB power delivery voltages of 5V/9V/15V or 20V or distributed 12/24V supplies
• Adjustable single output 3.3V to 12V
• Low noise/ripple
• High Power Density 120W, 10A (subject to thermal limitations)
• Small form factor, SMT package 37mm x 14mm x 7mm
• Non-isolated… well below maximum SELV voltage
• Industrial Temperature Range -40°C to +85°C
• Over Current, Thermal and Polarity reversal protection
• Under Voltage Lock-Out
• PMBus (I2C) control & monitoring interface