DESCRIPTION
The AIC1566 is a high power, high efficiency switching regulator controller optimized for high performance microprocessor applications. It is designed to drive an N-channel MOSFET in a standard buck topology. Featuring a low dropout linear regulator and a digitally programmable switching regulator, the AIC1566 includes monitoring and protection capabilities in addition to all the essential PWM control functions.

FEATURES
• Switching Regulator and Low Dropout Linear Regulator on Single Chip.
• Simple Voltage-Mode PWM Control.
• Fast Transient Response.
• ±1.5% 4-Bit Digital-to-Analog Output Voltage.
• Adjustable Current Limit Without External Sense Resistors.
• Full 0% to 100% Duty Ratio.
• 200KHz Free-Running Oscillator Programmable up to 350KHz.
• Power-Good Output Voltage Monitor.
• Short Circuit Protection with Low Short Circuit Output Current.

APPLICATIONS
• Power Supply for Pentium, Pentium Pro, Power PC, and Alpha Microprocessors.
• High-Power 5V to 3.xV DC/DC Regulators.
• Low-Voltage Distributed Power Supplies.