Microprocessor CORE Voltage Regulator Two-Phase Buck PWM Controller

The ISL6560 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

- VRM 9.0 compliant

- 5-bit VID input

- 1.100 to 1.850V in 25mV steps

- Programmable “droop” voltage

• Fast transient recovery time

• Overcurrent protection

• High output ripple frequency. . . . . . . . . . . . . 100kHz to 2MHz

• Pb-Free Available (RoHS Compliant)

Applications

• VRM9.X modules

• AMD Athlon™ processor voltage regulator

• Low output voltage, high current DC/DC converters