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
Footnotes MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size. Warnings Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.
Other details
| Brand |
MONOLITHIC POWER SYSTEMS (MPS) |
| Part Number |
MPQ4571GQB-AEC1-P |
| Quantity |
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| Technical Data Sheet EN |
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