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TPS2838 Datasheet(PDF) 2 Page - Texas Instruments

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Part No. TPS2838
Description  SYNCHRONOUS BUCK MOSFET DRIVERS WITH DRIVE REGULATOR
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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TPS2838 Datasheet(HTML) 2 Page - Texas Instruments

 
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TPS2838, TPS2839
TPS2848, TPS2849
SLVS367A – MARCH 2001 – REVISED JUNE 2001
2
www.ti.com
description (continued)
The SYNC pin can be used regardless of load to disable the synchronous FET driver and operate the power
supply nonsynchronously.
A power ready/undervoltage lockout function outputs the status of the VCC-pin voltage and driver regulator
output on the open-drain PWRRDY pin. This feature can be used to enable a controller’s output once the VCC
voltage reaches the threshold and the regulator output is stable. This function ensures both FET drivers are off
when the VCC voltage is below the voltage threshold.
The TPS2838/39/48/49 devices are offered in the thermally enhanced 14-pin and 16-pin PowerPAD TSSOP
package. The PowerPAD package features an exposed leadframe on the bottom that can be soldered to the
printed-circuit board to improve thermal efficiency. The TPS2838/48 are noninverting control logic while the
TPS2839/49 drivers are inverting control logic.


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