DATASHEET
ISL8014A
4A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator FN7525
Rev 2.00
December 16, 2014 The ISL8014A is a high efficiency, monolithic, synchronous
step-down DC/DC converter that can deliver up to 4A
continuous output current from a 2.8V to 5.5V input supply. It
uses a current control architecture to deliver very low duty
cycle operation at high frequency with fast transient response
and excellent loop stability. Features The ISL8014A integrates a pair of low ON-resistance P-Channel
and N-Channel internal MOSFETs to maximize efficiency and
minimize external component count. The 100% duty-cycle
operation allows less than 400mV dropout voltage at 4A
output current. High 1MHz pulse-width modulation (PWM)
switching frequency allows the for use of small external
components and the SYNC input enables multiple ICs to
synchronize out-of-phase to reduce ripple and eliminate beat
frequencies. 3% output accuracy over-temperature/load/line The ISL8014A can be configured for discontinuous or forced
continuous operation at light load. Forced continuous
operation reduces noise and RF interference while
discontinuous mode provides high efficiency by reducing
switching losses at light loads. Selectable forced PWM mode and PFM mode Fault protection is provided by internal hiccup mode current
limiting during short circuit and overcurrent conditions, an …
