Datasheet

LT3575
19
3575f
TYPICAL APPLICATIONS
V
OUT
+
5V, 1.4A
V
OUT
–
D1
C5
47
μF
2.6μH
T1: PULSE PA2454NL OR
WÜRTH ELEKTRONIK 750310471/750311675
D1: PDS835L
D3: PMEG6010
C5: MURATA, GRM32ER71A476K
SHDN/UVLO
T
C
SS
SW
VC GND BIAS
LT3575
3575 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
24
μH
R4
6.04k
R3
80.6k
C3
4700pF
C4
4.7μF
C2
10nF
R7
11.5k
*OPTIONAL THIRD
WINDING FOR
30V OPERATION
D2
L1C
2.6
μH
D3
TEST
R
ILIM
R
FB
R
REF
C6
0.22
μF
R8
1k
5V Isolated Flyback Converter
Effi ciency
I
OUT
(A)
0
EFFICIENCY (%)
0.4 0.8
0.2
0.6 1.0 1.2 1.4 1.6 1.8 2.0
3575 TA04b
60
70
80
50
40
10
0
30
90
20
V
IN
= 12V
V
IN
= 24V