IR35215
Overview
The IR35215 is a dual loop, digital, multi-phase buck controller designed for CPU voltage regulation - it can support up to 8 phases and allows flexible phase assignment between the two loops. The IR35215 includes Infineon’s efficiency shaping technology to deliver exceptional efficiency at minimum cost across the entire load range.
- Low quiescent power output PWM controller with dual loops and flexible phase allocation
- Intel® VR13 rev 1.1 , VR12.5 rev1.5, VR12 rev 1.7, IMVP8 rev 1.2 and memory VR modes
- Switching frequency from 200 kHz to 2 MHz per phase
- Infineon efficiency shaping features including dynamic phase control and automatic power state switching
- Programmable 1 or 2-phase operation for light loads and active diode emulation for very light loads
- Digitally programmable load line - no external components are needed to set the load line
- Infineon Adaptive Transient Algorithm (ATA) on both loops minimizes output bulk capacitors and system cost
- Auto-phase detection with PID coefficient auto-scaling
- Fault protection: OVP, UVP, OCP, OTP, CFP, cycle-by-cycle current limit
- I2C/SMBus/PMBus system interface for reporting of temperature, voltage, current and power telemetry for both loops
