DATASHEET
HIP6019
Advanced Dual PWM and Dual Linear Power Control
FN4490 Rev 2.00 April 1998
The HIP6019 provides the...
DATASHEET
HIP6019
Advanced Dual PWM and Dual Linear Power Control
FN4490 Rev 2.00 April 1998
The HIP6019 provides the power control and protection for four output voltages in high-performance microprocessor and computer applications. The IC integrates two PWM controllers, a linear
regulator and a linear controller as well as the monitoring and protection functions into a single 28 lead SOIC package. One PWM controller regulates the microprocessor core voltage with a synchronous-rectified buck converter, while the second PWM controller supplies the computer’s 3.3V power with a standard buck converter. The linear controller regulates power for the GTL bus and the linear
regulator provides power for the clock driver circuits.
The HIP6019 includes an Intel-compatible, TTL 5-input digitalto-analog converter (DAC) that adjusts the core PWM output voltage from 2.1VDC to 3.5VDC in 0.1V increments and from 1.8VDC to 2.05VDC in 0.05V steps. The precision reference and voltage-mode control provide 1% static regulation. The second PWM controller is user-adjustable for output levels between 3.0V and 3.5V with 2% accuracy. The adjustable linear
regulator uses an internal pass device to provide 2.5V 2.5%. The adjustable linear controller drives an external NChannel MOSFET to provide 1.5V 2.5%.
The HIP6019 monitors all the output voltages. A single Power Good signal is issued when the core is within 10% of the DAC setting and the other levels are above their under- voltage levels. Ad...