DATASHEET
ISL8026, ISL8026A FN8736
Rev 2.00
October 28, 2016 Compact Synchronous Buck Regulators Features The ISL8026, ISL8026A are highly efficient, monolithic,
synchronous step-down DC/DC converters that can deliver 6A of
continuous output current from a 2.5V to 5.5V input supply. The
devices use current mode control architecture to deliver a very low
duty cycle operation at high frequency with fast transient
response and excellent loop stability. 2.5V to 5.5V input voltage range Very low ON-resistance FETs -P-channel 36mО© and
N-channel 13mО© typical values High efficiency synchronous buck regulator with up to 95%
efficiency The ISL8026, ISL8026A integrate a very low ON-resistance
P-channel (36mО©) high-side FET and N-channel (13mО©)
low-side FET to maximize efficiency and minimize external
component count. The 100% duty-cycle operation allows less
than 180mV dropout voltage at 6A output current. The
operation frequency of the Pulse-width Modulator (PWM) is
adjustable from 500kHz to 4MHz. The default switching
frequency, which is set by connecting the FS pin high, is 1MHz
for the ISL8026 and 2MHz for the ISL8026A. 1.0% reference accuracy over load/line/temperature (-40В°C
to +85В°C) 1.5% reference accuracy over load/line/temperature (-40В°C
to +125В°C) Internal soft-start: 1ms or adjustable Soft-stop output discharge during disable Adjustable frequency from 500kHz to 4MHz -default at
1MHz (ISL8026) or 2MHz (ISL8026A) The ISL8026, ISL8026A can be configured for discontinuous or
forced continuous operation at light load. Forced continuous …
