Analog Devices Inc.

Category: Power Management ICs

The MAX20459 combines a 3A high-efficiency, automoive-grade, step-down converter, a USB Type-C DFP controller, and automatic BC1.2 DCP, Apple®, and Samsung® dedicated charger-detection circuitry. The device also includes a USB load current-sense amplifier and configurable feedback-adjustment circuit designed to provide automatic USB voltage compensation. The device limits the USB load current using both a fixed internal peak-current threshold and a user-configurable external current- sense USB load threshold.The MAX20459 is optimized for high-frequency operation and includes programmable frequency selection from 310kHz to 2.2MHz, allowing optimization of efficiency, noise, and board space based on application requirements. The fully synchronous DC-DC converter integrates high-side and low-side MOSFETs along with an external SYNC input/output, and can be configured for spread-spectrum operation. Additionally, thermal foldback is implemented to avoid excessive heating of the module while charging at high ambient temperature.The MAX20459 allows flexible configuration and advanced diagnostic options for both standalone and supervised applications. The device can operate as a true one- chip solution that offers advanced fault autorecovery and can be programmed using external programming resistors and/or internal I2C registers.The MAX20459 is available in a small 5mm x 5mm 32-pin TQFN package and is designed to minimize required external components and layout area.ApplicationsDedicated Charging ModulesDedicated USB Charging Port (DCP)Host and Hub Module Dedicated Charging Ports

* $2.94 - $5.56