MPQ4571GQBE-AEC1-P

MPQ4571 is a fully integrated, fixed frequency, synchronous step-down converter. It can achieve up to 1A of continuous output current with peak current control for excellent transient response. The wide 4.5V to 60V input voltage range accommodates a variety of step down applications in an automotive input environment. The device’s 2µA shutdown mode quiescent current makes it ideal in battery-powered applications. The MPQ4571 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. It is available in a QFN-12 (2.5mmx3mm) package. Typical applications include automotive infotainment, automotive lamps and LEDs, automotive motor control and industrial power systems.

• AEC-Q100 Grade-1 qualified
• High efficiency synchronous mode control
• 250mohm/45mohm internal power MOSFETs
• Configurable frequency up to 2.2MHz
• 180° out-of-phase SYNC out clock
• 40µA quiescent current
• Selectable AAM or forced CCM operation at light load
• Internal 0.45ms soft start, remote EN control, power good indicator
• Low dropout mode, VIN undervoltage lockout (UVLO)
• Thermal shutdown, overcurrent protection, short-circuit protection with hiccup mode