IR3590B

Digital Multi-Phase Redundant Controller IR3590B FEATURES  6-phase single loop configurable PWM Controller  Serial I2C control for Vout changes  Programmable Constant Current Protection  Dead-phase Protection and Flag  Min/Max Telemetry registers and real-time monitoring via I2C (IIN, VIN, IOUT, VOUT, Temp)  Improved Min/Max Telemetry Resolution  Programmable 1-phase or 2-phase for Light Loads and Active Diode Emulation for Very Light Loads  IR Adaptive Transient Algorithm (ATA) minimizes output bulk capacitors and system cost  IR Efficiency Shaping Features including Variable Gate Drive and Dynamic Phase Control  Auto-Phase Detection with auto-compensation  Fault Protection: Output OVP, UVP, OC Warn, OCP, OT Warn, OTP  Increased Iccmax range to 510A.  Multiple Time Programming (MTP) with integrated charge pump for easy custom configuration  Compatible with IR ATL and 3.3V tri-state Drivers  200kHz to 2MHz switching frequency per phase  +3.3V supply voltage; -40°C to 85°C Ambient  Pb-Free, Halogen Free, RoHS, 5x5mm, 40-pin, 0.4mm pitch QFN DESCRIPTION The IR3590B is a 6-phase digital, single loop, multiphase buck controller with a feature set optimized to support redundant power supply systems. The IR3590B includes IR’s Efficiency Shaping Technology to deliver exceptional efficiency at minimum cost across the entire load range. IR Variable Gate Drive optimizes the MOSFET gate drive voltage based on real-time load current. IR’s Dynamic Phase Control adds/dro...