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Monolithic Power Systems (MPS) MPQ4360 Synchronous Step-Down Converters offer a configurable frequency with integrated internal high-side and low-side power MOSFETs. The MPQ4360 delivers up to 6A of highly efficient output current (IOUT) with current mode control for fast loop response. The device provides a 3.3V to 40V wide input voltage (VIN) range facilitating a variety of step-down applications in automotive input environments. The 1.7μA shutdown current (ISD) permits the device to be used in battery-powered applications.
The MPS MPQ4360 Synchronous Step-Down Converters offer high power conversion efficiency across the entire load range, performed by scaling down the switching frequency under light-load conditions. This operation results in reduced switching and gate driver losses. The device’s open-drain power good (PG) signal indicates whether the output is within 95% to 105% of its nominal voltage.
Further features on the MPQ4360 include frequency foldback to prevent inductor current runaway during start-up and thermal shutdown to provide reliable, fault-tolerant operation. A high duty cycle and low-dropout mode are available for automotive cold-crank conditions.
The MPQ4360 is housed in a QFN-20 (4mm x 4mm) package.
