Buck Pulse-Width Modulator (PWM) Controller and Output Voltage Monitor

The HIP6008 provides complete control and protection for a DC-DC converter optimized for high-performance
microprocessor applications. It is designed to drive an N-Channel MOSFET in a standard buck topology. The
HIP6008 integrates all of the control, output adjustment, monitoring and protection functions into a single package.

FEATUREs
• Drives N-Channel MOSFET
• 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
- ±1.5% Over Line Voltage and Temperature
• 4 Bit Digital-to-Analog Output Voltage Selection
- Wide Range . . . . . . . . . . . . . . . . . . .2.0VDC to 3.5VDC
- 0.1V Binary Steps
• Power-Good Output Voltage Monitor
• 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 over 1MHz

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