Multiphase Boost Converter Expander with Internal Gate Drivers Features: Expands Up to 4 Phases per Chip Up to 80V Input or Output Voltage Cascade with Multiple Chips for High Current Applications Supports Up to 18 Distinct Phases from 20° to 180° Phases Can Share Phase Angle Excellent DC and Transient Current Sharing Phase-Lockable Fixed Frequency 125kHz to 1MHz Supports Bidirectional Current Flow RSENSE or DCR Current Sensing Eliminates the Need to Route Sensitive Feedback and Control Signals. 52-Lead (7mm × 8mm) QFN Package