IR3831WMTRPbF

IR3831WMPbF SupIRBuck Features • • • • • • • • • • • • • • • • • TM HIGHLY EFFICIENT INTEGRATED Description The IR3831W SupIRBuckTM is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The MOSFETS co-packaged with the on-chip PWM controller make IR3831W a spaceefficient solution, providing accurate power delivery for DDR memory applications. IR3831W is configured to generate termination voltage (VTT) for DDR memory applications. IR3831W offers programmability of start up time, switching frequency and current limit while operating in wide input and output voltage range. The switching frequency is programmable from 250kHz to 1.5MHz for an optimum solution. It also features important protection functions, such as Pre-Bias startup, hiccup current limit and thermal shutdown to give required system level security in the event of fault conditions. • • Distributed Point of Load Power Architectures Netcom Applications SYNCHRONOUS BUCK REGULATOR FOR DDR APPLICATIONS Wide Input Voltage Range 1.5V to 16V Wide Output Voltage Range 0.6V to 0.9*Vin Continuous 8A Load Capability Integrated Bootstrap-diode High Bandwidth E/A for excellent transient performance Programmable Switching Frequency up to 1.5 MHz Programmable Over Current Protection PGood output Hiccup Current Limit Programmable Soft-Start Enable Input with Voltage Monitoring Capability Enhanced Pre-Bias Start-up Vp input for DDR Tracking applications -40oC to 125oC operating junction temperature Thermal Protection 5mm x 6mm Power QFN Package, 0.9 mm height Lead-free, halogen-free and RoHS compliant Applications • • • Server Applications Storage Applications Embedded Telecom Systems 1.5V