Step-Down Converter MPQ4572-AEC1 by MPS
For Automotive Applications
The MPQ4572 from MPS is a high-efficient, fully integrated, fixed-frequency, synchronous step-down converter. It can achieve up to 2A of continuous output current with peak current control for excellent transient response qualified according ot AEC-Q100.
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 for battery-powered applications.
Download DatasheetWith Internal High-Side and Low-Side Power MOSFETs
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.
Over-Current Protection With Valley-Current Detection
The chip provides over-current protection (OCP) with valley-current detection to avoid current runaway. It also has hiccup short-circuit protection (SCP), input under-voltage lockout (UVLO), and auto-recovery thermal protection.
With internal compensation, the MPQ4572 can offer a very compact solution with a minimal number of readily available, standard external components. It is available in a QFN-12 (2.5x3mm) package.
Features & Benefits
- Wide 4.5V to 60V Operating Input Range
- 2A Continuous Output Current
- High-Efficiency, Synchronous Mode Control
- 250mΩ/45mΩ Internal Power MOSFETs
- Configurable Frequency Up to 2.2MHz
- 180° Out-of-Phase SYNC Out Clock
- 40μA Quiescent Current
- Low Shutdown Mode Current: 2μA
- FB-Tolerance: 1% at Room Temp, 2% at Full Temp
- Selectable AAM or Forced CCM Operation during Light-Load Conditions
- Internal 0.45ms Soft Start
- Remote EN Control
- Power Good Indicator
- Low-Dropout Mode
- Over-Current Protection (OCP)
- Short-Circuit Protection with Hiccup Mode
- VIN Under-Voltage Lockout (UVLO)
- Thermal Shutdown
- Available in a QFN-12 (2.5x3mm) Package
- Available in a Wettable Flank Package
- Available in AEC-Q100 Grade-1
Your Contact Person
For more information, please contact Thomas Berner.
