DATASHEET
ISL8018 FN7889
Rev 0.00
September 30, 2015 8A Low Quiescent Current High Efficiency Synchronous Buck Regulator Features The ISL8018 is a high efficiency, monolithic, synchronous
step-down DC/DC converter that can deliver up to 8A
continuous output current from a 2.7V to 5.5V input supply.
The output voltage is adjustable from 0.6V to VIN. With an
adjustable current limit, reverse current protection, prebias
start and over-temperature protection, the ISL8018 offers a
highly robust power solution. It uses current control
architecture to deliver fast transient response and excellent
loop stability. High efficiency synchronous buck regulator with up to 97%
efficiency В±10% output voltage margining Adjustable current limit Start-up with prebiased output Internal soft-start -1ms or adjustable, internal/external
compensation The ISL8018 integrates a pair of low ON-resistance P-channel
and N-channel internal MOSFETs to maximize efficiency and
minimize external component count. 100% duty-cycle
operation allows less than 250mV dropout at 8A output
current. Adjustable frequency and synchronization allow the
ISL8018 to be used in applications requiring low noise. 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 The ISL8018 can be configured for discontinuous or forced
continuous operation at light load. Forced continuous operation
reduces noise and RF interference while discontinuous mode …
