IR3570AMQA01TRP Description

The IR3564A/70A is a dual-loop digital multi-phase buck controller that complies fully with the AMD? SVI1 & SVI2 and Intel? VR12 requirements. It is designed for CPU voltage regulation.

In order to provide high efficiency at the lowest possible cost across the whole load range, the IR3564A/70A incorporates IR's Efficiency Shaping Technology. Dynamic Phase Control from IR can be set to automatically or manually enter 1-phase operation and diode emulation mode. It adds or drops active phases based on load current.

IR3570AMQA01TRP Features

• Dual output 4+1 and 3+2 phase PWM Controllers

• Easiest layout and fewest pins in the industry Fully supports AMD? SVI1 & SVI2 with dual OCP and Intel? VR12

• Overclocking & Gaming Mode

• Switching frequency from 200kHz to 2MHz per phase

• IR Efficiency Shaping Features including Dynamic Phase Control and Automatic Power State Switching

• Programmable 1-phase operation for Light Loads and Active Diode Emulation for Very Light Loads

• IR Adaptive Transient Algorithm (ATA) on both loops minimizes output bulk capacitors and system cost

• Auto-Phase Detection with autocompensation

• Per-Loop Fault Protection: OVP, UVP, OCP,

• OTP, CFP

• I2C/SMBus/PMBus system interface for telemetryof Temperature, Voltage, Current &

• Power for both loops

• Multiple Time Programming (MTP) with integrated charge pump for easy custom configuration

• Compatible with IR ATL and 3.3V tri-state Drivers

• +3.3V supply voltage; -40°C to 85°C ambient operation

• Pb-Free, RoHS, 5x5mm, 40-pin, 0.4mm pitch QFN

IR3570AMQA01TRP Applications

• AMD? SVI1 & SVI2, Intel? VR12 based systems

• Desktop & Notebook CPU VRs

• GPU & Memory VRs