Evaluation Board For ISL6526 Single Synchronous Buck Pulse-Width Modulation Controller

The ISL6526 make simple work out of implementing a complete control and protection scheme for a DC/DC stepdown converter. Designed to drive N-Channel MOSFETs in a synchronous buck topology, the ISL6526 integrate the control, output adjustment, monitoring and protection functions into a single package. 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 cycles range from 0% to 100%.

• 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
  • ISL6526: 300kHz - ISL6526A: 600kHz
• Internal Soft-Start
• 14 Ld SOIC or 16 Ld 5 x 5 QFN
• QFN Package:
  • Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Package Outline
  • Near Chip Scale Package Footprint, which Improves PCB Efficiency and has a Thinner Profile
• Pb-Free (RoHS Compliant)