Datasheet

LT3748
27
3748fa
TYPICAL APPLICATIONS
Figure 17. 48V, 0.5A Supply from 24V to 96V Input
OUTPUT CURRENT (A)
0
EFFICIENCY (%)
75
80
85
0.3
0.5
3748 F18
70
65
60
0.1 0.2 0.4
90
95
100
V
IN
= 24V
V
IN
= 48V
V
IN
= 96V
Figure 18. Efficiency of 48V Supply of Figure 17
EN/UVLO
TC
SS
R
FB
R
REF
V
C
GND INTV
CC
LT3748
3748 F17
2nF
V
IN
48V TYP
V
OUT
+
48V
0.5A
V
OUT
–
V
IN
T1
1:1
825k
49.9k
4.7
µF
40
µH
4.7
µF
100V
=3
GATE
SENSE
0.22µF
4700pF
4.7µF
6.04k
226k
66
150pF
D1
0.030
D1: CENTRAL SEMICONDUCTOR CMR5U-02-LTC
M1: VISHAY Si7464DP
T1: COILTRONICS VERSA-PAC VP4-0060-R
M1
10k