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Partname: | TPS40002DGQG4 |
Description: | Low Input (2.25V-5.5V) 600 kHz Frequency, Synchronous Buck Controller, Source Only |
Manufacturer: | Texas Instruments |
Datasheet: | PDF (619K). Click here to download *) |
The TPS4000x are controllers for low-voltage, non-isolated synchronous buck regulators. These controllers drive an N-channel MOSFET for the primary buck switch, and an N-channel MOSFET for the synchronous rectifier switch, thereby achieving very high-efficiency power conversion. In addition, the device controls the delays from main switch off to rectifier turn-on and from rectifier turn-off to main switch turn-on in such a way as to minimize diode losses (both conduction and recovery) in the synchronous rectifier with TI's proprietary Predictive Gate Drivet technology. The reduction in these losses is significant and increases efficiency. For a given converter power level, smaller FETs can be used, or heat sinking can be reduced or even eliminated. |
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