IR3622AMPBF

Data Sheet No PD94723 revA www.DataSheet4U.com IR3622AMPbF HIGH FREQUENCY 2-PHASE, SINGLE OR DUAL OUTPUT SYNCHRONOUS STEP DOWN CONTROLLER WITH OUTPUT TRACKING AND SEQUENCING Description Features Dual Synchronous Controller with 180o Out of Phase Operation Configurable to 2-Independent Outputs or Current Shared Single Output Output Voltage Tracking Power up / down Sequencing Current Sharing Using Inductor’s DCR +/-1% Accurate Reference Voltage Programmable Switching Frequency up 600kHz Programmable Over Current Protection Hiccup Current Limit Using MOSFET Rds(on) sensing Latched Overvoltage Protection Dual Programmable Soft-Starts Programmable Enable Input Pre-Bias Start-up Dual Power Good Outputs On Board Regulator External Frequency Synchronization Thermal Protection 32-Lead MLPQ Package The IR3622A IC integrates a dual synchronous Buck controller, providing a high performance and flexible solution. The IR3622A can be configured as 2-independent outputs or as current shared single output. The current share configuration is ideal for high current applications. The IR3622A enables output tracking and sequencing of multiple rails in either ratiometric or simultaneous fashion. The IR3622A features 180o out of phase operation which reduces the required input/output capacitance and results in lower number of capacitors. The switching frequency is programmable from 200kHz to 600kHz per phase using one external resistor. In addition, IR3622A als...