LT1613
典型应用S
4节至5V SEPIC DC / DC转换器
6.5V至4V
L1
22µH
C3
1µF
D1
V
IN
3.5V至
8V
L1
10µH
+
C1
22µF
V
IN
LT1613
SHDN
SHDN
GND
FB
R2
12.1k
效率(%)
C1 : AVX TAJB226M016
C2 : AVX TAJA475M025
D1 :MOTOROLA MBR0520
L1 : MURATA LQH3C100
3.3V至8V / 70毫安, - 8V / 5毫安, 24V / 5毫安TFT LCD偏置电源采用全陶瓷电容器
D2
V
关闭
– 8V
5mA
D3
0.22µF
0.22μF :太阳诱电EMK212BJ224MG
1μF :太阳诱电LMK212BJ105MG
4.7μF :太阳诱电LMK316BJ475ML
D1 :MOTOROLA MBRO520
D2,D3, D4: BAT54S
L1 : SUMIDA CDRH5D185R4
L1
5.4µH
V
IN
3.3V
V
IN
C1
4.7µF
LT1613
SHDN
GND
FB
48.7k
0.22µF
1µF
V
ON
24V
5mA
10
U
+
4-CELL
C1
15µF
V
IN
LT1613
SW
374k
FB
GND
121k
L2
22µH
V
OUT
5V
175mA
+
SHDN
SHDN
C2
22µF
L1 , L2 : MURATA LQH3C220
C3 : AVX 1206YG105陶瓷
D1 : MBR0520
1613 • TA03
4节至15V / 30毫安DC / DC转换器
D1
V
OUT
15V/30mA
SW
1nF
10k
85
80
V
IN
= 6.5V
效率
R1
137k
1%
+
C2
4.7µF
75
70
65
60
55
V
IN
= 3.6V
V
IN
= 5V
1613 TA04
50
0
10 20 30 40 50 60 70 80 90 100
负载电流(mA )
1613 TA04a
1µF
D4
0.22µF
1µF
D1
AV
DD
8V
70mA
274k
C2
4.7µF
SW
1613 TA05