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MPQ4345GLE-5-AEC1-P is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Monolithic Power Systems Inc.. Its product description is IC REG BUCK 5V 2A 17QFN. Review the specifications below when checking this part for your BOM.
The MPQ4345GLE-5-AEC1-P is a synchronous step-down converter from Monolithic Power Systems, designed for automotive applications. It features a 36V input range and delivers up to 2A output current with a fixed 5V output voltage. The device operates at a switching frequency of 2.2MHz and includes ultra-low quiescent current capabilities. It is housed in a QFN-17 package and supports an operating temperature range from -40°C to +150°C.
Verify the specific suffix 'AEC1' confirms automotive qualification status against the manufacturer's official datasheet. Ensure the fixed 5V output variant matches the target circuit requirements, as other output voltages may exist within the same family. Confirm the QFN-17 package dimensions align with the PCB footprint design guidelines provided in the product documentation.
Select this component when a fixed 5V output is required for automotive loads. Compare the 2A current limit against peak load demands to ensure adequate headroom. Evaluate the 2.2MHz switching frequency for EMI constraints relative to nearby sensitive analog circuits. Consider the thermal performance of the QFN-17 package for the intended enclosure environment.
This part belongs to the MPQ434x series of synchronous buck converters optimized for automotive use. It shares architectural similarities with the MPQ4348 and MPQ4347 models but differs in output current capacity and fixed voltage configuration. The series targets compact power solutions requiring high reliability and low standby power consumption.
Publicly confirmed substitute part numbers are not available in the provided source material.
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MPQ4345GLE-5-AEC1-P is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Monolithic Power Systems Inc.. Its…
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