DESCRIPTION

The IR3080 Control IC combined with an IR XPhaseTM Phase IC provides a full featured and flexible way to implement a complete VRD 10 power solution. The “Control” IC provides overall system control and interfaces with any number of “Phase ICs” which each drive and monitor a single phase of a multiphase converter. The XPhaseTM architecture results in a power supply that is smaller, less expensive, and easier to design while providing higher efficiency than conventional approaches.

The IR3080 is intended for desktop applications and includes the VCCVID and VRHOT functions required for proper system operation.

FEATURES

• 6 bit VR10 compatible VID with 0.5 overall system accuracy

• 1 to X phases operation with matching phase ICs

• On-chip 700Ω VID Pull-up resistors with VID pull-up voltage input

• Programmable Dynamic VID Slew Rate

• No Discharge of output capacitors during Dynamic VID step-down (can be disabled)

• +/-300mV Differential Remote Sense

• Programmable 150kHz to 1MHz oscillator

• Programmable VID Offset and Load Line output impedance

• Programmable Softstart

• Programmable Hiccup Over-Current Protection with Delay to prevent false triggering

• Simplified Powergood provides indication of proper operation and avoids false triggering

• Operates from 12V input with 9.1V Under-Voltage Lockout

• 6.8V/5mA Bias Regulator provides System Reference Voltage

• 1.2V @ 150mA VCCVID Linear Regulator with Full Protection

• VCCVID Powergood with Programmable delay gates converter operation

• Programmable Converter Over-Temperature Detection and Output

• Small thermally enhanced 32L MLPQ package