Evaluation Board For Single Sync Buck PWM Controller For Broadband Gateway Applications

Single Sync Buck PWM Controller for Broadband Gateway Applications Operates from 3.3V to 5V Input • 0.8V to VIN Output Range - 0.8V Internal Reference - ±1.5% Over Load, Line Voltage and Temperature • Drives N-Channel MOSFETs • Simple Single-Loop Control Design - Voltage-Mode PWM Control • Fast Transient Response - High-Bandwidth Error Amplifier - Full 0% to 100% Duty Cycle • Lossless, Programmable Overcurrent Protection - Uses Upper MOSFET’s rDS(on) • Converter can Source and Sink Current • Small Converter Size - Internal Fixed Frequency Oscillator - ISL6439: 300kHz - ISL6439A: 600kHz • Internal Soft-Start • 14 Pin SOIC or 16 Lead 5x5 QFN • QFN Package: - Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Lead - Package Outline - Near Chip Scale Package footprint, which improves PCB efficiency and has a thinner profile • Pb-free (RoHS compliant)