The HIP6006 provides complete control and protection for a DC-DC converter optimized for high-performance microprocessor applications. It is designed to drive two N Channel MOSFETs in a synchronous-rectified buck topology. The HIP6006 integrates all of the control, output adjustment, monitoring and protection functions into a single package.

The output voltage of the converter can be precisely regulated to as low as 1.27V, with a maximum tolerance of ±1% over temperature and line voltage variations.

The HIP6006 provides simple, single feedback loop, voltage-mode control with fast transient response. It includes a 200kHz free-running triangle-wave oscillator that is adjustable from below 50kHz to over 1MHz. The error amplifier features a 15MHz gain-bandwidth product and 6V/µs slew rate which enables high converter bandwidth for fast transient performance. The resulting PWM duty ratio ranges from 0% to 100%.

The HIP6006 protects against over-current conditions by inhibiting PWM operation. The HIP6006 monitors the current by using the r_DS(ON) of the upper MOSFET which eliminates the need for a current sensing resistor.

• Drives Two N-Channel MOSFETs
• Operates From +5V or +12V Input
• Simple Single-Loop Control Design
  • Voltage-Mode PWM Control
• Fast Transient Response
  • High-Bandwidth Error Amplifier
  • Full 0% to 100% Duty Ratio
• Excellent Output Voltage Regulation
  • 1.27V Internal Reference
  • ±1% Over Line Voltage and Temperature
• Over-Current Fault Monitor
  • Does Not Require Extra Current Sensing Element
  • Uses MOSFETs r_DS(ON)
• Small Converter Size
  • Constant Frequency Operation
  • 200kHz Free-Running Oscillator Programmable from 50kHz to Over 1MHz
• 14 Pin, SOIC and TSSOP Package
• Pb-Free Available (RoHS Compliant)

• Power Supply for Pentium®, Pentium Pro, PowerPC™ and Alpha™ Microprocessors
• High-Power 5V to 3.xV DC-DC Regulators
• Low-Voltage Distributed Power Supplies