MP2891GQN 16-Phase Dual-Loop Digital Controller with PWM-VID Interface Integrated Circuit Chip

MP2891 is a dual-rail, digital, multi-phase controller that provides power for PWM-VID core power. It is also compliant with the AVSBus interface. The MP2891 can work with MPS's Intelli-Phase™ products to complete the multi-phase voltage regulator (VR) solution with minimal external components. The MP2891 can be configured with a maximum 16-phase operation for rail 1 and a maximum 8-phase operation for rail 2.

• Up to 16-Phase, 2-Output Digital Controller
• PWM-VID Compatible with OpenVReg Specification (OVR4i+)
• Supports AVSBus Rev. 1.3
• PMBus/I2C Compliant (1MHz Bus Speed)
• Pin Configurable for PMBus Address
• Built-In Non-Volatile Memory (NVM) to Store Configurations
• 200kHz to 3MHz Switching Frequency (fSW)
• Automatic Loop Compensation
• Coupled Inductor Mode
• Supports Multi-Configuration for 6 Different Applications
• Flexible Pulse-Width Modulation (PWM) Assignment for 2 Rails
• Automatic Phase-Shedding (APS) to Improve Overall Efficiency
• Phase-to-Phase Active Current Balancing with Configurable Offsets for Thermal Balance
• Input Voltage (VIN), Output Voltage (VOUT), Current, and Power Monitoring
• VIN Under-Voltage Lockout (UVLO), Output Over-Voltage Protection (OVP) and Under-Voltage Protection (UVP), Over-Current Protection (OCP), and Over-Temperature Protection (OTP) with No Action, Latch, or Hiccup Options
• Intelli-Phase™ Fault Diagnosis
• Auto-Records VR Fault Type to the NVM
• Digital Load-Line Regulation
• Overclocking Mode by Adding Offset to VOUT
• Available in a QFN-56 (7mmx7mm) Package