Description

25A Monolithic Synchronous DC/DC Step-Down Converter with PMBus Interface Features: 4.5V to 20V VIN Range 1% Total VOUT Accuracy Over Temperature Single Resistor-Programmable Reference Voltage: 0.4V to 3.5V PMBus Compliant Serial Interface: Programmable Output Voltage Margining: Up to ±25% VOUT Range with 0.1% Resolution Read Back of Average and Peak Temperature, Current, and Voltage (25Hz Refresh Rate) Fault Status Phase-Lockable Fixed Frequency Up to 2MHz Less Than 1ms Power-Up Time Optional External Reference Input Pin Selectable Fast-Margining of the Output Voltage Power Good Flag with Pin Programmable Thresholds and Filter Delay Differential Remote Output Voltage Sensing Master Shutdown Mode: 125μA Supply Current Clock Out for 2-Phase Operation (50A Load) Available in a Thermally-Enhanced 6.25mm × 7.5mm × 2.22mm BGA Package