ISL6440A - Advanced PWM and Triple Linear Power Controller
VCC (Pin 28) Provide a 12V bias supply for the IC to this pin.
This pin also provides the gate bias charge for all the MOSFETs controlled by the IC.
The voltage at this pin is monitored for power-on reset (POR) purposes.
internal circuitry insures the core output voltage does not go negative during
TM ISL6440A Data Sheet October 2001 File Number 9041 Advanced PWM and Triple Linear Power Controller for Gateway Applications The ISL6440A provides the power control and protection for four output voltages required by microprocessors used in high-performance, graphics-intensive gateway applications.
The IC integrates a voltage-mode PWM controller and three linear controllers, as well as the monitoring and protection functions into a 28 lead SOIC package.
The synchronous rectified buck converte
ISL6440A Features
* Provides four regulated voltages - Microprocessor core, AGP bus, memory, and GTL bus power
* Drives N-Channel MOSFETs
* Linear regulator drives compatible with both MOSFET and bipolar series pass transistors
* Fixed or externally resistor-adjustable linear outputs
