Datasheet

LT3574
19
3574f
typical applications
V
OUT
+
5V
350mA
V
OUT
–
D1
C5
22
µF
5.6µH
T1: PULSE PA3019NL
OR WÜRTH ELEKTRONIK 750370041
D1: B340A
D3: PMEG6010
C5: MURATA, GRM32ER71A226K
SHDN/UVLO
TC
SS
SW
VC GND BIAS
LT3574
3574 TA04
R6
28.7k
R5
10k
V
IN
12V TO 24V
(30V*)
V
IN
3:1:1
R1
499k
R2
71.5k
C1
10
µF
T1
50
µH
R4
6.04k
R3
80.6k
C3
1000pF
C4
4.7µF
C2
10nF
R7
59k
*OPTIONAL THIRD
WINDING FOR
30V OPERATION
D2
L1C
5.6
µH
R8
4.02k
D3
C6
0.22
µF
TEST
R
ILIM
R
FB
R
REF
•
•
•
5V Isolated Flyback Converter
Efficiency
I
OUT
(mA)
0
EFFICIENCY (%)
200 400
100
300 500 600 700
3574 TA04b
60
70
80
50
40
10
0
30
90
20
V
IN
= 24V
V
IN
= 12V