Feature
The MP9943A is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution to achieve a 3A peak output current with excellent load and line regulation over a wide input supply range. The MP9943A has synchronous mode operation for higher efficiency over the output current load range. Current-mode operation provides fast transient response and eases loop stabilization. Full protection features include over-current protection and thermal shutdown. The MP9943A requires a minimal number of readily-available standard external components, and is available in a space-saving QFN-8 (3mmx3mm) package.
FEATURES
Wide 4V to 36V Continuous Operating Input Range
85mΩ/55mΩ Low RDS(ON) Internal Power MOSFETs
High-Efficiency Synchronous Mode Operation
410kHz Switching Frequency
Synchronizes from 200kHz to 2.2MHz External Clock
High Duty Cycle for Automotive Cold-crank
Force CCM Mode
Power Good Indicator
Over Current Protection and Hiccup
Thermal Shutdown
Output Adjustable from 0.8V
Available in an QFN-8 (3mmx3mm) package
