Datasheet

MAX17598/MAX17599
Low I
Q
, Wide-Input Range, Active Clamp
Current-Mode PWM Controllers
21Maxim Integrated
Typical Application Circuits
Figure 9. Typical Application Circuit (Telecom Power Supplies)
L2
1.5µH
L1
10mH
V
OUT
V
OUT
V
OUT
PGND0
PGND0
V
OUT
PGND0
3.3V, 8A
OUTPUT
C5
47µF
C3
2.2µF
C2
22µF
C10
22nF
C13
OPEN
C14
2.2nF
C15
1000pF
C9
1µF
C18
0.47µF
C20
4.7µF
P1
N3
C11
0.047µF
C16
100nF
N1
NS
NP
NBD2
D1
N2
C4
330µF
C7
4.7µF
C8
0.47µF
R1
221kI
V
IN
PGND
PGND
PGND
PGND
PGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
OVI
EN/UVLO
DITHER/SYNC
SGND
SGND
U2
U1
U3
1
3
2
V
DRV
V
DC
V
FB
V
FB
V
DRV
T1
C6
47µF
R2
10R
R3
10R
R9
0R
R12
0R
R20
OPEN
R15
OPEN
R18
28.7kI
R6
10kI
R23
49.9kI
R24
22kI
R5
1.6MI
R7
35.7kI
R4
24.9kI
R14
10kI
R8
20kI
R19
100
R16
OPEN
R22
30kI
R11
49.9kI
R10
221
R13
10kI
R17
470
3
2
1
4
D4
D3
R21
0.1
V
IN
V
IN
V
DC
PGND
INPUT
36V TO
72V INPUT
C1
100pF
C19
33nF
C17
OPEN
C12
SHORT
(PC TRACE)
AUXDRV
NDRV
PGND
CS
DT
EP
V
DRV
EN/UVLO
FB
COMP
SGND
RT
SLOPE
SS
DITHER/
SYNC
OVI
MAX17598
PGND0