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A6985F Datasheet(PDF) 59 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) 59 Page - STMicroelectronics

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A6985F
Application board
77
8.1
A6985F3V3 evaluation board
Equation 55 and Figure 44 show the magnitude and phase margin Bode’s plots related to
the evaluation board presented in Figure 41 with the BOM of Table 16 and Table 17.
The small signal dynamic performance of the demonstration board is:
Equation 55
Figure 44. Magnitude Bode’s plot of A6985F3V3 evaluation board
Table 17. Bill of material of A6985F3V3 demonstration board
Reference
Part number
Description
Manufacturer
C4
1.2 pF - 10 V - 0603
C7
Not mounted
C8
68 pF - 10 V - 0603
R7
0
 - 0603
R8
110 k
 - 1% - 0603
R9
Not mounted
U1
A6985F3V3
STMicroelectronics
BW
110kHz
=
phase margin
67
0
=



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