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The DA9131-XXRT2-AT is a high-efficiency, dual-channel step-down DC/DC converter from the Renesas DA9131 family. It features integrated switching FETs delivering 5A per channel with efficiency exceeding 90%. The device operates within an input voltage range of 2.8V to 5.5V and supports output voltages from 300mV to 1.9V. It utilizes a 4MHz switching frequency and includes I2C interface capabilities for configuration. The component is housed in a 24-pin FC-QFN package measuring 3.3mm x 4.8mm.
Verify the specific suffix 'AT' against official Renesas documentation to confirm it denotes the Automotive Grade variant (DA9131-A) or a custom OTP configuration. Ensure compatibility with AEC-Q100 Grade 2 requirements if automotive qualification is mandatory. Confirm availability status as supply may be restricted or subject to factory special orders.
Select this component when designing power supplies for automotive systems requiring dual independent rails up to 5A each. Consider the 2.8V minimum input voltage constraint and the need for external resistor dividers if output voltages exceed 1.9V. Evaluate the 24-pin FC-QFN footprint for PCB layout constraints and ensure adequate thermal management due to high current density.
The DA9131 series represents Renesas's flexible sub-PMIC solution for automotive applications. The DA9131-XXRT2-AT belongs to this family, offering scalable power delivery for complex electronic architectures. It enables exact-fit power solutions by integrating multiple functions into a compact form factor, reducing bill of materials and board space compared to discrete solutions.
Public confirmed substitute part numbers are not available in the provided data. Consult Renesas directly for cross-referencing options or updated product lifecycle information regarding the DA9131-XXRT2-AT designation.