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A6985F Datasheet(PDF) 34 Page - STMicroelectronics

Part # A6985F
Description  38 V 500 mA synchronous step-down switching regulator
PDF  77 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

A6985F Datasheet(HTML) 34 Page - STMicroelectronics

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Functional description
A6985F
34/77
DocID027738 Rev 2
OCP and switchover feature
Output capacitor discharging the current flowing to ground during heavy short-circuit events
is only limited by parasitic elements like the output capacitor ESR and short-circuit
impedance.
Due to parasitic inductance of the short-circuit impedance, negative output voltage
oscillations can be generated with huge discharging current levels (see Figure 23).
Figure 23. Output voltage oscillations during heavy short-circuit
short-circuit current
regulated output voltage
inductor current
switching node



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