Monolithic Power Systems MPQ4423A
The MPQ4423A is a high-efficiency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution that achieves 3A of continuous output current with excellent load and line regulation over a wide input supply range. The MPQ4423A uses synchronous mode operation to achieve higher efficiency over the output current load range.DESCRIPTION
Current-mode operation provides fast transient response and eases loop stabilization. Full protection features include over-current protection (OCP) and thermal shutdown. The MPQ4423A requires a minimal number of readily available, standard, external components and is available in a compact QFN-8 (3mmx3mm) package. MPQ4423A 3A, 36V, High-Efficiency, Synchronous, Step-Down Converter AEC-Q100 QualifiedFEATURES
● Wide 4V to 36V Continuous Operating Input Range● 85mΩ/55mΩ Low RDS(ON) Internal Power MOSFETs
● High-Efficiency Synchronous Mode Operation
● Default 410kHz Switching Frequency
● Synchronizes to a 200kHz to 2.2MHz External Clock
● High Duty Cycle for Automotive Cold Crank
● Forced CCM Mode
● Internal Soft Start
● Power Good
● Over-Current Protection (OCP) and Hiccup
● Thermal Shutdown
● Output Adjustable from 0.8V
● Available in a QFN-8 (3mmx3mm) Package
● Available in AEC-Q100 Grade 1
APPLICATIONS
● Automotive● Industrial Control System
● Distributed Power Systems All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.