Digital Multi-Phase Buck Controller
Digital Multi-Phase Buck Controller
IR3536A IR3538A
FEATURES
6-phase & 8-phase dual output PWM Controller
Phases a...
Description
Digital Multi-Phase Buck Controller
IR3536A IR3538A
FEATURES
6-phase & 8-phase dual output PWM Controller
Phases are flexibly assigned between Loops 1 & 2
Intel® VR12, AMD® 3.4MHz SVI/PVI & Memory modes
Overclocking & Gaming Mode with Vmax setting
Switching frequency from 200kHz to 1.2MHz per phase
IR Efficiency Shaping Features including Variable Gate Drive and Dynamic Phase Control
Programmable 1-phase or 2-phase 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 auto-compensation
Per-Loop Fault Protection: OVP, UVP, OCP, OTP, CFP
I2C/SMBus/PMBus system interface for telemetry of Temperature, Voltage, Current & Power for both loops
Non-Volatile Memory (NVM) for custom configuration
Compatible with IR ATL and 3.3V Tri-state Drivers
+3.3V supply voltage; -20ºC to 85ºC ambient operation
Pb-Free, RoHS, 7x7 48-pin & 8x8 56-pin QFN, MSL2 package
APPLICATIONS
Intel ® VR12 & AMD® SVI & PVI based systems
DDR Memory with Vtt tracking
Overclocked & Gaming platforms
DESCRIPTION
The IR3536A and IR3538A are dual-loop digital multi-phase buck controllers. The IR3536A drive up to 6 phases and the IR3538A drives up to 8 phases. The IR3536A and IR3538A are fully Intel® VR12 and AMD® SVI/PVI compliant on both loops and provide a Vtt tracking function for DDR memory.
The IR3536A and IR3538A include the IR Efficiency S...
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