SC4620

Low Input Voltage, High Efficiency, 2.5A Integrated FET Synchronous Step down DC/DC Regulator POWER MANAGEMENT Description The SC4620 is a highly integrated synchronous step-down DC/DC regulator designed for low input voltage range of 2.3V to 5.5 Volts. It can deliver 2.5A continuous output current with the output voltage as low as 0.5 Volts. The internal low RDS(ON) synchronous power switches eliminate the need for external Schottky diode while delivering overall converter efficiency up to 95%. www.DataSheet4U.com SC4620 Features u VIN Range: 2.3 – 5.5V u 2.5A Continuous Output Current u Adjustable Output Voltage 0.5V to Vin u Up to 95% Efficiency u Synchronizable and Programmable Frequency: 200kHz – 2MHz u Power Good Monitor u <1µA of Shutdown Current u Programmable Soft Start u Programmable Current Limit u Over Temperature protection u -40 to +85 °C Ambient Temperature Range u 4X4mm MLPQ-20 packages- WEEE and RoHS compliant A power good pin is available to monitor the output voltage status. Operating frequency is adjustable from 200 kHz to 2MHz with a single resistor and it can be synchronized to an external clock. The SC4620 offers adjustable current limit, soft start and over temperature protection to safeguard the device under extreme operating conditions. The soft start provides a controlled output voltage ramp up at startup. When a logic low is applied to the Enable pin, the SC4620 enters the shutdown mode and it consumes less than 1µA of current. The SC4620 is ava...