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AN2565 Datasheet(PDF) 18 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) 18 Page - STMicroelectronics

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Test setup and performance summary
AN2565
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Figure 10.
Section 2 soft-start waveforms
Driving the SHDN pin below the SHDN device “off” threshold will cause the device to enter
shutdown mode. In this case the switching outputs are connected to ground through an
internal 12
Ω power MOSFET and are discharged softly, (discharge mode). When the output
voltages reach 0.3 V, the low side MOSFETs are turned on, quickly discharging them to
ground.
Figure 11.
Section 1 shutdown waveforms
OUT1
EN1
Lgate1



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