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TPS5450DDA

DC-DC Switching Buck Step Down Regulator, Adjustable, 5.5V-36Vin, 1.22V-31Vout, 5Aout, PPAD-8

TEXAS INSTRUMENTS TPS5450DDA
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Manufacturer Part No:
TPS5450DDA
Order Code:
3121780

Product Overview

The TPS5450DDA is a 5A 500kHz Step-down Converter that integrates a low-resistance, high-side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions, an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 5.5V, an internally set slow-start circuit to limit inrush currents and a voltage feed-forward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18µA typically. Other features include an active-high enable, over-current limiting, over-voltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS5450 feedback loop is internally compensated.
  • Up to 5A continuous (6A peak) output current
  • High efficiency greater than 90% enabled by 110mR integrated MOSFET switch
  • Wide output voltage range (adjustable down to 1.22V with 1.5% initial accuracy)
  • Internal compensation minimizes external parts count
  • 18µA Shutdown supply current
  • Improved line regulation and transient response by input voltage feed-forward
  • System protected by over-current limiting, overvoltage protection and thermal shutdown
  • Green product and no Sb/Br

Applications

Power Management, Consumer Electronics

Product Information

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Buck (Step Down)

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5.5V

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36V

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1Outputs

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SO PowerPAD

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8Pins

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5A

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1.22V

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31V

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600kHz

:
125°C

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-

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-

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MSL 1 - Unlimited
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Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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Available for back order

More stock available to supplier lead times which is approximately 11/7/22

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