Analog Devices Inc. MAX20461 Automotive High-Current Step-Down Converters combine a 3A high-efficiency, automotive-grade, step-down converter, a USB Type-C/BC1.2 host charger emulator, and high bandwidth USB protection switches for automotive USB 2.0 host applications. Additionally, the ADI MAX20461 includes a USB load current-sense amplifier and a configurable feedback adjustment circuit that provides automatic USB voltage compensation for voltage drops in captive cables often found in automotive applications. The Converters limit the USB load current using both a fixed internal peak-current threshold and a user-configurable external current-sense USB load threshold.
ADI MAX20461 Converters are optimized for high-frequency operation and include programmable frequency selection from 310kHz to 2.2MHz, allowing optimization of efficiency, noise, and board space based on the application requirements. The MAX20461 allows flexible configuration and advanced diagnostic options for both stand-alone and supervised applications.
The MAX20461 is housed in a small 5mm x 5mm 32-pin TQFN package and is designed to minimize required external components and layout area.