IRDC3899-P1V2
9/18/2012
6
Fig
.
6
:
S
ch
emati
c
of
t
he
IR
3899
ev
aluati
on
bo
ard
V
o
u
t-
1
V
D
D
Q
1
V
in
V
R
E
F
1
+
C
36
N
/S
C
14
0.
1uF
+
C
35
N
/S
P
G
N
D
1
L1
1.
0u
H
R
12
4.
02K
R
28
N
/S
C
24
0.
1u
F
V
s
n
s
1
V
C
C
C
26
4.
7n
F
R
29
N
/S
R
19
7.
5K
R
14
0
o
h
m
V
o
u
t
V
c
c
+
1
C2
10u
F
C5
10u
F
R9
60.
4K
R1
5.
23K
R
10
0
o
h
m
C3
10u
F
R3
4.
02K
R4
100
o
h
m
R2
5.
62K
C4
10u
F
C
15
47u
F
R6
20
o
h
m
S
Y
N
C
1
C
16
47u
F
A
g
n
d
1
C
17
47u
F
R7
N
/A
C
18
47u
F
C
19
47u
F
C
20
47u
F
R
13
0
o
h
m
C
25
N
/S
C
23
2.
2u
F
S
_
C
tr
l
1
C
12
1n
F
A
1
B
1
R
18
49.
9K
+
C1
330u
F
/25V
R
50
0
o
h
m
C
27
N
/S
V
C
C
C8
2200p
F
V
C
C
Input ceramic: 1206
U1
IR
3
8
9
9
Enable
15
Boot
14
Vsns
8
SW
12
PGood
7
C
OM
P
3
S_C
trl
6
PGnd
11
Vp
16
FB
1
Gnd
4
Vcc
/LD
O_OU
T
10
PVin
13
R
t_Sy
nc
5
Vin
9
VREF
2
GND
17
N
38703
R
15
0
o
h
m
C
32
1.
0u
F
C
28
N
/S
V
in
+
1
C
29
N
/S
V
in
-
1
C
30
N
/S
V
o
u
t+
(
1
.2
V
)
1
V
o
u
t-
1
R
21
N
/S
C7
0.
1u
F
R
17
49.
9K
P
G
o
o
d
1
C
11
82p
F
C6
N
/A
C
37
N
/S
C
10
N
/A
R
11
5.
62K
E
n
a
b
le
1
V
in
+
1
V
in
-
1
V
o
u
t+
1