Microprocessor CORE Voltage Regulator Two-Phase Buck PWM Controller

The ISL6562 two-phase current mode, PWM control IC together with companion gate drivers, the HIP6601A,

HIP6602A, HIP6603A or HIP6604 and MOSFETs provides a precision voltage regulation system for advanced

microprocessors. Two-phase 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

• Two-Phase Power Conversion

• Precision Channel Current Sharing

• Precision CORE Voltage Regulation

- ±0.8 Accuracy

• Microprocessor Voltage Identification Input

- 5-Bit VID Input

- 1.050V to 1.825V in 25mV Steps

- Programmable “Droop” Voltage

• Fast Transient Recovery Time

• Over Current Protection

• High Ripple Frequency, (Channel Frequency

Times Number of Channels). . . . . . . . . . . . .100kHz to 2MHz

Applications

• VRM8.5 Modules

• Intel® Tualatin Processor Voltage Regulator

• Low Output Voltage, High Current DC/DC Converters