Vrm8.5 Dual Pwm And Dual Linear Power System Controller

The ISL6523A provides the power control and protection for four output voltages in high-performance Microprocessor and computer applications. The IC integrates two PWM controllers and two linear controllers, as well as the monitoring and protection functions into a 28-pin SOIC package. One PWM Controller regulates the Microprocessor core voltage with a synchronous-rectified buck converter. The second PWM Controller supplies the computer systems AGTL+ 1.2V bus power with a standard buck converter. The linear controllers regulate power for the 1.5V AGP bus and the 1.8V power for the chipset core voltage and/or cache memory circuits. The ISL6523A includes an Intel VRM8.5 compatible, TTL 5-input digital-to-analog converter (DAC) that adjusts the Microprocessor core-targeted PWM output voltage from 1.050V to 1.825V in 25mV steps. The precision reference and voltage-mode control provide 1% static regulation. The second PWM Controllers output provides a voltage level of 1.2V with 3% accuracy. The linear Regulators use external N-Channel MOSFETs or bipolar NPN pass Transistors to provide fixed output voltages of 1.5V 3% (VOUT3) and 1.8V 3% (VOUT4). By Intersil Corporation
ISL6523A 's PackagesISL6523A 's pdf datasheet

ISL6523A Pinout, Pinouts
ISL6523A pinout,Pin out
This is one package pinout of ISL6523A,If you need more pinouts please download ISL6523A's pdf datasheet.

ISL6523A Application circuits
ISL6523A circuits
This is one application circuit of ISL6523A,If you need more circuits,please download ISL6523A's pdf datasheet.

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