The ISL95813 single-phase controller provides a fully compliant VR12.6 power supply solution for Intel™ microprocessors. It provides a tightly regulated output voltage that is programmed through a high speed serial bus interface with the CPU. This interface also allows the CPU to acquire real-time information from the voltage regulator (VR), which includes load current and VR temperature.
●Based on Intersil"s Robust Ripple Regulator (R3™) technology, the PWM modulator provides faster transient response and settling time when compared against traditional modulation schemes. Its variable frequency topology also allows for natural period stretching discontinuous conduction mode (DCM) for increased efficiency and power savings in light load situations.
●Features
●• Full VR12.6 specification compliance
●• Wide input voltage range: 4.6V to 25V
●• R3™ control architecture delivers excellent transient response and power state mode transitions
●• Current monitor (IMON) with temperature compensation
●• VRHOT# indicator for CPU protection
●• Digitally selectable switching frequency:
● - 425kHz, 550kHz, 700kHz with ECO and PRO options
●• Enhanced light-load efficiency discontinuous conduction mode operation
●• Ultra-small 20 lead 3mmx4mm QFN package
●• Enable and power-good monitor
●Applications
●• Notebook Computers
●• Tablets, Ultrabooks™, and AIO
