XR79115 Datasheet, PDF (15/19 Pages) Exar Corporation – 22V, 15A Synchronous Step Down COT Power Module

Application Circuit
XR79115
R4 10k
R3 38.3k
RON
8.87k
RLIM
2.49k
CSS
47nF
PVIN
CVIN
0. 1uF
R5 10k ^{1 SS}
VCC
2 _PGOOD
FB
3 _FB
4 _AGND
5 _VIN
VCC
CVCC
4.7uF
6 _VCC
7 _GL
8 _PGND
GL PAD
OPTIONAL
RSNB
1 Ohm
SW PAD
9
10
11
12
24
25
26
27
28
29
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
CSNB
1nF
U1
XR79115
PVIN
12VIN
2x22uF
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
VOUT PAD 2
VOUT PAD 1
500kHz, 15A@1.2VOUT
680uF 3x47uF
R1
2k
FB
R2
2k
© 2014 Exar Corporation
15 / 19
exar.com/XR79115
Rev 1B