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TPS54540QDDAQ1 is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG BCK SPLIT RAIL ADJ 8SOPWR. Review the specifications below when checking this part for your BOM.
The TPS54540QDDAQ1 is an automotive-grade step-down DC-DC converter manufactured by Texas Instruments. It operates with a 4.5 V to 42 V input voltage range and delivers up to 5 A of output current. The device features a fixed switching frequency of 500 kHz and supports adjustable output voltages from 800 mV to 41.1 V. It includes an integrated high-side MOSFET and meets AEC-Q100 standards for automotive applications, functioning within a temperature range of -40°C to +125°C.
Verify the specific suffix 'Q1' confirms automotive grade status. Confirm package type matches SO-PowerPAD-8 requirements. Check datasheet for latest lifecycle status as NRND may impact long-term supply. Ensure thermal management aligns with specified operating temperatures.
Select this part for designs requiring robust automotive reliability and high current capability. Compare against TPS54540B series if adjustable switching frequency is needed instead of fixed 500 kHz operation. Verify input voltage stability does not exceed the 42 V maximum limit during transient conditions.
This component belongs to the TPS54540 family of synchronous buck converters designed for power management in demanding environments. It shares architectural similarities with other members but is specifically qualified for automotive use. The QDDA variant denotes the tube packaging option within this product line.
TPS54540QDDARQ1 offers identical electrical specifications but utilizes Reel/Cut Tape packaging instead of Tube.
Explore related parts through Power Management (PMIC), Integrated Circuits (ICs), all product categories, ChipApex homepage.

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