lt3573 Linear Technology Corporation, lt3573 Datasheet - Page 19

• Manufacturer Part Number: lt3573
• Description: Isolated Flyback Converter Without An Opto-coupler
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIONS
12V TO
(*40V)
V
24V
IN
3573 TA04
R6
28.7k
C1
10
μ
F
R5
10k
R1
499k
R2
71.5k
C2
10nF
R
SHDN/UVLO
TC
SS
ILIM
90
80
70
60
50
40
30
20
10
VC
0
R7
45.3k
0
C3
1000pF
5V Isolated Flyback Converter
LT3573
200
GND
V
IN
400
TEST
Effi ciency
600
V
I
R
OUT
BIAS
IN
R
REF
SW
FB
= 12V
(mA)
800
C4
4.7μF
1000 1200 1400
80.6k
R4
6.04k
C6
0.22
R3
V
IN
μ
F
T1: PULSE PA2454NL
D1: B340A
D3: 1N4148
C5: MURATA, GRM32ER71A476K
= 24V
3573 TA04b
D2
OR WÜRTH ELEKTRONIK 750370047
R8
2k
L1C
2.6
D3
24
μ
H
μ
T1
H
3:1:1
*OPTIONAL THIRD
WINDING FOR
40V OPERATION
2.6
μ
D1
H
C5
47
μ
V
5V, 700mA
V
F
OUT
OUT
+
–
LT3573
19
3573f