DATASHEET
ISL8013A
3A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator FN7526
Rev 2.00
November 17, 2014 The ISL8013A is a high efficiency, monolithic, synchronous
step-down DC/DC converter that can deliver up to 3A
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 ISL8013A 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 300mV dropout voltage
at 3A output current. High 1MHz pulse-width modulation
(PWM) switching frequency allows for the 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 ISL8013A 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. External synchronization up to 4MHz Fault protection is provided by internal hiccup mode current
limiting during short circuit and overcurrent conditions, an …
