MAX20037/38 Automotive Step-Down Converters

Analog Devices Inc. MAX20037/38 Automotive High-Current Step-Down Converters with USB Protection/Host Charger Adapter Emulation combine a 3.5A automotive-grade step-down converter, USB host charger adapter emulator, and USB protection switches for automotive USB host applications. The MAX20037/38 Converters include a USB load current-sense amplifier and configurable feedback-adjustment circuit designed to provide automatic USB voltage compensation for voltage drops in captive cables often found in automotive applications. The devices limit the USB load current using a fixed internal peak-current threshold of the DC-DC converter and a user-configurable external USB load current-sense amplifier threshold.