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Source/sink buck converter


i am trying to identify a 2-quadrant buck converter with the following characteristics for a TEC driver:

- type: buck/buck-boost/synchronous buck

- current capability > 5A both in sourcing and sinking (2-quadrant)

- price < 4 USD

- minimum output voltage range: 1 V to 12 V

- external inductor/internal switches are preferred

Are there some parts which could match the stated specifiations?

Thanks for your help and best regards,


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