Rainbow Electronics MAX15023 - Manual (Page 24)

MAX15023
Wide 4.5V to 28V Input, Dual-Output
Synchronous Buck Controller
24 ______________________________________________________________________________________
Typical Application Circuits
3300pF
390pF
33pF MAX15023
Q3
FDS8880
Q2
FDS8880 Q5
FDS6982AS-Q2
Q4
FDS6982AS-Q1 Q1
FDS8880
2
EN1
8
BST1
9
DH1
15
PGOOD2
19
RT
18
COMP2
16
V CC
11
BST2
10
DH2
17
FB2
7
LX1
12
LX2
5
DL1
6
PGND1
14
DL2
13
PGND2
24
COMP1
23
LIM1
21
IN
1
FB1
1 µF
16.2k Ω
47k Ω
200k Ω
30.1k Ω
20k Ω
2200pF
1.5 Ω
R
T
33k Ω
10 µF
25V
2200pF
3300pF
22pF
C BST1
0.22 µF
C BST2
0.22 µF
4.7 µF
10 µF
25V
20
SGND
22
LIM2
12.1k Ω
12.1k Ω
EN1
V OUT1
V OUT2
V CC
PGOOD2
V CC
V IN
V
IN
9V TO 16V
3
EN2
4
PGOOD1
47k Ω
200k Ω
22.1k Ω
10k Ω
45.3k Ω
1.62k Ω
EN2
DL1
PGOOD1
V
OUT1
V CC
0.8 µH 3.3 µH
V IN
22 µF
6.3V
1500 µF
2.5V
22 µF
6.3V
22 µF
6.3V
22 µF
6.3V
10 µF
25V
1.5 Ω
V OUT2
Figure 6. Application Diagram (Operation from a Single-Supply Rail, V IN = 9V to 16V)