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HIP6017B Datasheet Advanced Pwm And Dual Linear Power Control

Manufacturer: Intersil (now Renesas)

Overview: HIP6017B PRELIMINARY Data Sheet March 1999 File Number 4585 Advanced PWM and Dual Linear Power Control The HIP6017B provides the power control and protection for three output voltages in high-performance microprocessor and puter applications. The IC integrates a PWM controller, a linear regulator and a linear controller as well as the monitoring and protection functions into a single 28 lead SOIC package. The PWM controller regulates the microprocessor core voltage with a synchronous-rectified buck converter. The linear controller regulates power for the GTL bus and the linear regulator provides power for the clock driver circuits. The HIP6017B includes an Intel-patible, 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 1.3VDC to 2.05VDC in 0.05V steps. The precision reference and voltage-mode control provide ±1% static regulation. The linear regulator uses an internal pass device to provide 2.5V ±2.5%. The linear controller drives an external N-Channel MOSFET to provide 1.5V ±2.5%. The HIP6017B 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 undervoltage 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 overcurrent function monitors the output current by using the voltage drop across the upper MOSFET’s rDS(ON), eliminating the need for a current sensing resistor.

Key Features

  • Provides 3 Regulated Voltages - Microprocessor Core, Clock and GTL Power.
  • Linear Controller Drives Either N-Channel MOSFETs or Bipolar Transistors.
  • Operates from +3.3V, +5V and +12V Inputs.
  • Simple Single-Loop PWM Control Design - Voltage-Mode Control.
  • Fast Transient Response - High-Bandwidth Error Amplifier - Full 0% to 100% Duty Ratios.
  • Excellent Output Voltage Regulation - Core PWM Output: ±1% Over Temperature - Other Outputs: ±2.5% Over Te.

HIP6017B Distributor