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2A Synchronous Buck Regulator with Integrated MOSFETs

The ISL8502A is a synchronous buck controller with internal MOSFETs packaged in a small 4mmx4mm QFN package. The ISL8502A can support a continuous load of 2A and has a very wide input voltage range. With the switching MOSFETs integrated into the IC, the complete regulator footprint can be very small and provide a much more efficient solution than a linear regulator.

Features

? Up to 2A Continuous Output Current

? Integrated MOSFETs for Small Regulator Footprint

? Adjustable Switching Frequency, 500kHz to 1.2MHz

? Tight Output Voltage Regulation, ¡À1 Over-temperature

? Wide Input Voltage Range, 5V ¡À10 or 5.5V to 14V

? Wide Output Voltage Range, from 0.6V

? Simple Single-Loop Voltage-Mode PWM Control Design

? Input Voltage Feed-Forward for Constant Modulator Gain

? Fast PWM Converter Transient Response

? Lossless rDS(ON) High Side and Low Side Overcurrent Protections

? Undervoltage Detection

? Integrated Thermal Shutdown Protection

? Power-Good Indication

? Adjustable Soft-Start

? Start-Up with Pre-Bias Output

? Pb-free (RoHS Compliant)

Applications

? Point of Load Applications

? Graphics Cards - GPU and Memory Supplies

? ASIC Power Supplies

? Embedded Processor and I/O Supplies

? DSP Supplies