Datasheet

LTC4265
18
4265fa
100k12k
• •
•
•
25mΩ
FDS2582
14k
3.01k
20Ω
30k
15µF 16V
29.4k
383k
30.9
BAS21
1.8k 38.3k
10k
51k
1nF
10k 20k
15Ω
15Ω
150Ω
PE-68386
BAT54
100Ω
33pF
10µF 100V
0.1µF 100V
SMAJ58A
B1100 s 8 PLCS
1µF 100V
0.1µF
4.7nF
2.2nF
MMBT3906 MMBT3904
1µF
1µF 16V
PA2467NL
4265 TA02
t
ON
SYNC
PGDLY
UVLO
SENSE
–
V
C
SENSE
+
R
CMP
ENDLY OSC SFST
LT3825
GND
SG
FB
V
CC
SG SG
PG
C
CMP
GND
R
CLASS
SHDN
LTC4265
T2PSE
V
IN
V
OUT
4.7µH
–54V FROM
DATA PAIR
–54V FROM
SPARE PAIR
47pF
•
10µF 16V
0.33µH
12V 2A
47µF 16V
FDS3572
+
GND
4 5
1 8
GND
LTV357TA
T2P (TO MICROCONTROLLER)
2.2nF
2kV
470pF 2kV
+
High Effi ciency 12V Isolated Power Supply
(Contact LTC for 3.3V and 5V Power Supply Applications)
APPLICATIONS INFORMATION
LOAD CURRENT (A)
0.2 0.4
EFFICIENCY (%)
85
89 87
2.0
4265 TA02a
81 83 77 79
0.6 0.8
1.21.0
1.6 1.81.4
93 91
57V48V
EXCLUDING BRIDGES
42V
LOAD CURRENT (A)
0.2
OUTPUT (V)
12.0 12.1 12.2 12.3
2.0
4265 TA02b
11.8 11.9 11.6 11.7
0.6 0.80.4
1.21.0
1.6 1.81.4
12.4
57V48V42V
Effi ciency vs Load Current Output Regulation vs Load Current