Description

PolyPhase Step-Down Synchronous Slave Controller with Sub-Milliohm DCR Sensing Features: Phase Extender for High Phase Count Voltage Rails Accurate Phase-to-Phase Current Sharing Sub-Milliohm DCR Current Sensing Phase-Lockable Fixed Frequency 250kHz to 1MHz Immediate Response to Master IC's Fault Up to 12 Phase Operation Wide VIN Range: 4.5V to 38V VOUT Range: Up to 3.5V (LOWDCR Pin = INTVCC) Up to 5.5V (LOWDCR Pin = OV) Proprietary Current Mode Control Loop Programmable CCM/DCM Operation Programmable Phase Shift Control Dual N-Channel MOSFET Gate Drivers 28-Lead (4mm × 5mm) QFN Package