Buck and Synchronous-Rectifier Pulse-Width Modulator (PWM) Controller

The HIP6012 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 HIP6012 integrates all of the control, output adjustment, monitoring and protection functions into a single package.

Features
• 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
    - ±1.5% Over Line Voltage and Temperature
• Overcurrent Fault Monitor
    - Does Not Require Extra Current Sensing Element
    - Uses MOSFETs rDS(ON)
• Small Converter Size
    - Constant Frequency Operation
    - 200kHz Free-Running Oscillator Programmable from 50kHz to Over 1MHz
• 14 Pin, SOIC and TSSOP Packages
• Pb-Free Available (RoHS Compliant)

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