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HIP6021EVAL1 Datasheet(PDF) 1 Page - Intersil Corporation |
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HIP6021EVAL1 Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 15 page 1 ® HIP6021 Advanced PWM and Triple Linear Power Controller The HIP6021 provides the power control and protection for four output voltages in high-performance, graphics intensive microprocessor and computer applications. The IC integrates a voltage-mode PWM controller and three linear controllers, as well as the monitoring and protection functions into a 28- pin SOIC package. The PWM controller regulates the microprocessor core voltage with a synchronous-rectified buck converter. The linear controllers regulate the computer system’s AGP 1.5V or 3.3V bus power, the 1.5V GTL bus power, and the 1.8V power for the North/South Bridge core voltage and/or cache memory circuits. The HIP6021 includes an Intel-compatible, TTL 5-input digital-to-analog converter (DAC) that adjusts the core PWM output voltage from 1.3VDC to 2.05VDC in 0.05V steps and from 2.1VDC to 3.5VDC in 0.1V increments. The precision reference and voltage-mode control provide ±1% static regulation. The AGP bus power linear controller’s output (VOUT2) is user-selectable, through a TTL-compatible signal applied at the SELECT pin, for levels of 1.5V or 3.3V with ±3% accuracy. Based on the status of the FIX pin, the other two linear regulators provide either fixed output voltages of 1.5V ±3% (V OUT3) and 1.8V±3% (VOUT4), or user-adjustable by means of an external resistor divider. All linear controllers can employ either N-channel MOSFETs or bipolar NPNs for the pass transistor. The HIP6021 monitors all the output voltages. A single Power Good signal is issued when the core is within ±10% of the DAC setting and all other outputs 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 function monitors the output current by using the voltage drop across the upper MOSFET’s rDS(ON). Applications • Motherboard Power Regulation for Computers Features • Provides 4 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 (FIX Pin) • Simple Single-Loop Control Design - Voltage-Mode PWM Control • Fast PWM Converter Transient Response - High-Bandwidth Error Amplifier - Full 0% to 100% Duty Ratio • Excellent Output Voltage Regulation - Core PWM Output: ±1% Over Temperature - Other Outputs: ±3% Over Temperature • TTL-Compatible 5-Bit DAC Microprocessor Core Output Voltage Selection - Wide Range . . . . . . . . . . . . . . . . . . . 1.3VDC to 3.5VDC • Power-Good Output Voltage Monitor • Over-Voltage and Over-Current Fault Monitors - Switching Regulator 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 Over 1MHz - Small External Component Count • Pb-Free Available (RoHS Compliant) Pinout HIP6021 (SOIC) TOP VIEW Ordering Information PART NUMBER TEMP. RANGE (oC) PACKAGE PKG. DWG. # HIP6021CB 0 to 70 28 Ld SOIC M28.3 HIP6021CBZ (Note) 0 to 70 28 Ld SOIC (Pb-free) M28.3 HIP6021EVAL1 Evaluation Board Add “-T” suffix for tape and reel. NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. DRIVE2 FIX VID4 VID3 VSEN2 SELECT SS FAULT/RT VSEN4 VCC PGND LGATE PHASE DRIVE3 COMP GND VAUX DRIVE4 UGATE 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 SD VSEN1 VSEN3 VID1 VID0 OCSET FB Data Sheet March 8, 2005 FN4684.1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 1999, 2005. All Rights Reserved |
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