MPQ4572
DESCRIPTION
The MPQ4572 is a fully integrated, fixedfrequency, synchronous step-down converter. It can achieve up to 2A of continuous output current with peak current control for excellent transient response.
The wide 4.5V to 60V input voltage range acmodates a variety of step-down applications in an automotive input environment. The device’s 2μA shutdown mode quiescent current makes it ideal for battery-powered applications.
The MPQ4572 integrates internal high-side and low-side power MOSFETs for high efficiency without an external Schottky diode. It employs advanced asynchronous modulation (AAM) to achieve high efficiency during light-load conditions by scaling down the frequency to reduce switching and gate driver losses.
Standard features include built-in soft start, enable control, and power good indication. High-duty cycle and low-dropout mode are provided for automotive cold crank conditions.
The chip provides over-current protection (OCP) with valley-current detection to avoid...
