ISL8016IR18Z

The ISL8016 is a high efficiency, monolithic, synchronousstep-down DC/DC converter that can deliver up to 6A continuousoutput current from a 2.7V to 5.5V input supply. The outputvoltage is adjustable from 0.6V to VIN. With an adjustable currentlimit, reverse current protection, pre-bias start and overtemperature protection the ISL8016 offers a highly robust powersolution. It uses current control architecture to deliver fasttransient response and excellent loop stability. The ISL8016 integrates a pair of low ON-resistance P-Channeland N-Channel internal MOSFETs to maximize efficiency andminimize external component count. 100% duty-cycle operationallows less than 200mV dropout at 6A output current. Adjustablefrequency and synchronization allow the ISL8016 to be used inapplications requiring low noise. Paralleling capability withphase interleaving allows the IC to support >6A output currentwhile offering reduced input and output noise. The ISL8016 can be configured for discontinuous or forcedcontinuous operation at light load. Forced continuous operationreduces noise and RF interference while discontinuous modeprovides high efficiency by reducing switching losses at light loads.

• High Efficiency Synchronous Buck Regulator with up to 97% Efficiency
• 1% Reference Accuracy Over-Temperature/Load/Line
• Fixed Output Voltage Option
• ±10% Output Voltage Margining
• Adjustable Current Limit
• Current Sharing Capable
• Start-up with Pre-Biased Output
• Internal Soft-Start - 1ms or Adjustable, Internal/External Compensation
• Soft-Stop Output Discharge During Disabled
• Adjustable Frequency from 500kHz to 4MHz - Default at 1MHz
• External Synchronization up to 4MHz - Master to Slave Phase Shifting Capability
• Peak current limiting, Hiccup Mode Short Circuit Protection and Over-Temperature Protection‘