MPQ4433
DESCRIPTION
The MPQ4433 is a synchronous, step-down, switching regulator with programmable frequency (350k Hz to 2.5MHz) and integrated, internal, high-side and low-side power MOSFETs. The MPQ4433 provides up to 3A of highly efficient output current with current mode control for fast loop response.
The wide 3.3V to 36V input range acmodates a variety of step-down applications in automotive input environments. The MPQ4433 is ideal for battery-powered applications due to its extremely low quiescent current.
The MPQ4433 employs advanced asynchronous mode (AAM) to achieve high efficiency in light-load condition by scaling down the switching frequency to reduce switching and gate driving losses.
Standard features include soft start, external clock synchronization, enable control, and power good indication. High-duty cycle and low dropout mode are provided for automotive coldcrank.
Over-current protection (OCP) with valleycurrent detection is employed to prevent the inductor current from...
