ISL8023 Datasheet | Renesas

ISL8023, ISL8024 pact Synchronous Buck Regulator The ISL8023, ISL8024 are highly efficient, monolithic, synchronous step-down DC/DC converters that can deliver 3A (ISL8023) or 4A (ISL8024) of continuous output current from a 2.7V to 5.5V input supply. The devices use current mode control architecture to deliver very low duty cycle operation at high frequency with fast transient response and excellent loop stability. The ISL8023 and ISL8024 integrate a very low On-resistance P-Channel (45mΩ) high side FET and N-Channel (19mΩ) low side FET to maximize efficiency and minimize external ponent count. The 100% duty-cycle operation allows less than 200m V dropout voltage at 4A output current. The operation frequency of the pulse-width modulator (PWM) is adjustable from 500k Hz to 4MHz. The default switching frequency of 1MHz is set by connecting the FS pin high, which allows for the use of small external ponents. The ISL8023, ISL8024 can be configured for discontinuous or forced...