AIC1566
4-bit DAC, Simple PWM Power Regulator With Linear Controller
FEATURES
Switching Regulator and Low Dropout Linear...
AIC1566
4-bit DAC, Simple PWM Power
Regulator With Linear Controller
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. The internal 4-bit Digital-to-Analog Converter (DAC) adjusts the output voltage from 2.0V to 3.5V in 0.1V increments. The precision reference and voltage-mode control can provide output
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. dropout linear
regulator Featuring a low and a digitally
programmable switching
regulator, the AIC1566 includes monitoring and protection capabilities in addition to all the essential PWM control functions.
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.
regulation within ±1.5% over temperature and line voltage shifts. The internal oscillator of the AIC1566 free runs at 200KHz and can be adjusted up to 350KHz. The resulting PWM duty ratio ranges from 0% to 100%. The er...