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AN2565 Datasheet(PDF) 17 Page - STMicroelectronics

Part # AN2565
Description  PM6680A evaluation kit dual step-down controller with auxiliary voltages
PDF  29 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2565 Datasheet(HTML) 17 Page - STMicroelectronics

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AN2565
Test setup and performance summary
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Figure 8.
Power-up sequence
10.3
Soft-start and shutdown waveforms
Figures 9 and 10, and figures 11 and 12 show the soft-start and shutdown waveforms,
respectively.
The PM6680A has an independent internal digital soft-start for each switching section.
During the soft-start phase the internal current limit increases from 25% to 100%, in
increments of 25%, to avoid the inductor current reaching too high a value.
Figure 9.
Section 1 soft-start waveforms



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