Datasheet

LTC3714
24
3714f
applicaTions inForMaTion
Solving for the required values of the resistors:
R
VP1
=
5V
5V – I
TH(NOM)
R
VP
=
5V
5V – 0.55V
20.3k
= 23k
R
VP2
=
5V
I
TH(NOM)
R
VP
=
5V
0.55V
20.3k = 185k
Figure 10. LTC3714 Layout Diagram
C
F
C
ION
C
C1
C
SS
C
C2
R
ON
3714 F10
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
C
FB
BOLD LINES INDICATE HIGH CURRENT PATHS
C
B
C
IN
V
IN
D1
M2
M1
C
OUT
+
–
V
OUT
–
+
BG
SENSE
SW
TG
BOOST
VID0
VID1
VID2
RUN/SS
V
ON
PGOOD
V
RNG
I
TH
INTV
CC
V
IN
EXTV
CC
VID4
VID3
V
OSENSE
V
FB
I
ON
FCB
OPOUT
OP
+
OP
–
OPV
IN
LTC3714
D
B
R
C
R
F
C
VCC
SGND
PGND
The modified circuit is shown in Figure 9. Refer to Linear
Technology Design Solutions 10 for additional information
about output voltage positioning.
PC Board Layout Checklist
When laying out the printed circuit board, use the follow-
ing checklist to ensure proper operation of the controller.