Mobile Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller

The ISL6223 multi-phase PWM control IC together with its companion gate drivers, the HIP6601, HIP6602 or HIP6603 and Intersil MOSFETs provides a precision voltage regulation system for advanced mobile microprocessors. A single-stage regulator that directly converts a battery voltage to a microprocessor core voltage can be designed when high voltage drivers are employed. Multiphase power conversion is a marked departure from earlier single phase converter configurations previously employed to satisfy the ever increasing current demands of modern microprocessors.

Features

• Mobile VID Compatible Multi-Phase Power Conversion

• Precision Channel Current Sharing

- Loss Less Current Sampling - Uses rDS(ON)

• Precision CORE Voltage Regulation

- ±1 System Accuracy Over Temperature

• Microprocessor Voltage Identification Input

- 5-Bit VID Input

- 1.30V to 2.00V in 50mV Steps

- 0.925V to 1.275V in 25mV Steps

- Programmable “Droop” Voltage

• Fast Transient Recovery Time

• Over Current Protection

• High Ripple Frequency (Channel Frequency Times

Number of Channels, Two). . . . . . . . . . . .100kHz to 3MHz