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HIP6019CB Datasheet(PDF) 1 Page - Intersil Corporation |
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HIP6019CB Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 15 page 2-252 HIP6019 Advanced Dual PWM and Dual Linear Power Control 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 digital- to-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 N- Channel 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. Additional built-in over-voltage protection for the core output uses the lower MOSFET to prevent output voltages above 115% of the DAC setting. The PWM controller’s over- current functions monitor the output current by sensing the voltage drop across the upper MOSFET’s rDS(ON), eliminating the need for a current sensing resistor. Pinout HIP6019 (SOIC) TOP VIEW Features • Provides 4 Regulated Voltages - Microprocessor Core, I/O, Clock Chip and GTL Bus • Drives N-Channel MOSFETs • Operates from +5V and +12V Inputs • Simple Single-Loop Control Designs - Voltage-Mode PWM Control • Fast Transient Response - High-Bandwidth Error Amplifiers - Full 0% to 100% Duty Ratios • Excellent Output Voltage Regulation - Core PWM Output: ±1% Over Temperature - I/O PWM Output: ±2% Over Temperature - Other Outputs: ±2.5% Over Temperature • TTL-Compatible 5-Bit Digital-to-Analog Core Output Voltage Selection - Wide Range . . . . . . . . . . . . . . . . . . . 1.8VDC to 3.5VDC - 0.1V Steps . . . . . . . . . . . . . . . . . . . . 2.1VDC to 3.5VDC - 0.05V Steps . . . . . . . . . . . . . . . . . . 1.8VDC to 2.05VDC • Power-Good Output Voltage Monitor • Microprocessor Core Voltage Protection Against Shorted MOSFET • Over-Voltage and Over-Current Fault Monitors - Does Not Require Extra Current Sensing Element, Uses MOSFET’s rDS(ON) • Small Converter Size - Constant Frequency Operation - 200kHz Free-Running Oscillator; Programmable from 50kHz to 1MHz Applications • Full Motherboard Power Regulation for Computers • Low-Voltage Distributed Power Supplies UGATE2 PHASE2 VID4 VID3 FB2 COMP2 SS FAULT/RT FB4 VCC PGND LGATE1 PHASE1 GATE3 COMP1 GND VOUT4 VSEN2 UGATE1 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 PGOOD VID2 OCSET2 VSEN1 FB3 VID1 VID0 OCSET1 FB1 Ordering Information PART NUMBER TEMP. (oC) PACKAGE PKG. NO. HIP6019CB 0 to 70 28 Ld SOIC M28.3 HIP6019EVAL1 Evaluation Board Data Sheet April 1998 File Number 4490.2 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999 |
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