Oleg Oleg
RUSSIAN FEDERATION, THE • + Follow
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Description
TPS54821RHLR High current buck module
Input voltage: 4.5-17v
Output voltage: adjustable voltage (default setting 3.3v)
Output current: (Max 8A, large current needs to add enough heat dissipation)
Switching frequency: 200 kHz to 1.6 MHz switching frequency
It is a fully functional 17 V, 8 A optimized synchronous buck converter that integrates high-side and low-side MOSFETs through an efficient and small design.
Further space-saving mode control through current can reduce the number of components and reduce the footprint of the inductor by selecting a high switching frequency.
The output voltage start ramp is provided by the SS / TR pin, which can be operated as a stand alone and powered or in tracking state.
Power can also be sequenced through proper configuration to enable and open-drain power good pins.
The high-side FET cycle-by-cycle current limit protects the device under overload conditions, and the low-side source current limit improves protection against current runaway.
There is also a low-side current sink limit that turns off the low-side MOSFET to prevent excessive reverse current.
If the overcurrent will hit the protection condition lasts longer than the preset time.
The hot IC protection function will disable the device when the chip temperature exceeds the temperature shutdown temperature and enable the built-in thermal shutdown of the part again after a period of h.
May 26,2020
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TPS54821RHLR High current buck module
Input voltage: 4.5-17v
Output voltage: adjustable voltage (default setting 3.3v)
891
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0
10.00 (1)
Published: May 26,2020
Download Gerber file 6
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- Engineer Jul 27,2020
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