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L6935 Fiches technique(PDF) 16 Page - STMicroelectronics

No de pièce L6935
Description  High performance 3 A ULDO linear regulator
PDF  20 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6935 Fiches technique(HTML) 16 Page - STMicroelectronics

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Demonstration board description
L6935
16/20
7
Demonstration board description
Figure 15 and Figure 16 show the schematic and the layout of the demonstration board
designed for L6935. VIN and VBIAS may be different and, in this case, R4 must not be
mounted. C3 defines the Soft-Start timer, according to the relationship described in the
Section 5.1.
The value of the output divider R1 / R2 have to be designed in order to program the desired
VOUT value, according to the following equation:
Figure 15.
Demonstration board schematic
Figure 16.
Demonstration board layout
V
OUT
0.5
=
1
R
1
R
2
-------
+
⎝⎠
⎛⎞
⋅
VIN
C4
R1
R2
VOUT
L6935
VIN
SS
GND
VOUT
ADJ
EN
VBIAS
PAD
VBIAS
R4
C2
C3
C6
PGOOD
R3
PGOOD
R5
C1
ADJ
EN
6
16,17,18
5
19
8, 9, 10
7
2
20
C5
GND



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