DESCRIPTION

The IR3093 Control IC provides a full featured, cost effective, single chip solution to implement robust power conversion solutions for three different microprocessor families; 1) AMD’s Opteron, 2) AMD’s Athlon or 3) Intel’s VR-10.X family of processors. The user can select the appropriate VID range with a single pin. Control and 3 phase Gate Drive functions are integrated into a single cost effective IC. . In addition to CPU power, the IR3093 offers a compact, efficient solution for high current POL converters.

FEATURES

• 5 bit or 6 bit VID with 0.5 overall system accuracy

• Selectable VID Code for AMD Opteron or Athlon or Intel VR10.X

• Programmable Slew Rate response to “On-the-Fly” VID Code Changes

• 3A GATELX Pull Down Drive Capability

• Programmable 100KHz to 540KHz oscillator

• Programmable Voltage Positioning (can be disabled)

• 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 up to 21V input with 7.9V Under-Voltage Lockout

• 5V UVL with 4.36V Under-Voltage Lockout threshold

• Adjustable Voltage, 150mA Bias Regulator provides MOSFET Drive Voltage

• Enable Input

• OVP Flag Output detects high side fet short at powerup

• Pin compatible with IR3092, 2-phase PWM Control IC

• Available 48L MLPQ package