单同步降压脉宽调制（ PWM ）控制器 Single Synchronous Buck Pulse-Width Modulation PWM Controller
The ISL6520A makes 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 ISL6520A integrates the control, output adjustment, monitoring and protection functions into a single 8 Lead package.
Features
• Operates from +5V Input
• 0.8V to VINOutput Range
\- 0.8V Internal Reference
\- ±1.5% Over 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 rDSON
• Small Converter Size
\- 300kHz Fixed Frequency Oscillator
\- Internal Soft-Start
\- 8 Ld SOIC or 16 Ld 4mmx4mm 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
