NCP1406
L1 8.2 mH
D1
MBR0530T1
V
OUT
V
IN
25 V
2.0 V to 5.5 V
CE
1
LX
5
C
3.3 mF
2
C
1
C
3
10 mF
FB
2
82 pF
R
R
2.2 MW
110 kW
1
VDD
3
GND
4
Enable
2
R
R
2
1
+ 1.19ǒ ) 1Ǔ
V
OUT
Figure 1. Typical 25 V Step−Up Application Circuit
L1 8.2 mH
D1
MBR0520LT1
V
OUT
V
IN
15 V
2.0 V to 5.5 V
CE
1
LX
5
C
4.7 mF
2
C
1
C
3
10 mF
FB
2
68 pF
R
R
1.3 MW
1
VDD
3
GND
4
Enable
110 kW
2
R
1
+ 1.19ǒ ) 1Ǔ
V
OUT
R
2
Figure 2. Typical 15 V Step−Up Application Circuit
L1 8.2 mH
D1
MBR0520LT1
V
OUT
V
IN
8 V
2.0 V to 5.5 V
CE
1
LX
5
C
4.7 mF
2
C
1
C
3
10 mF
FB
2
12 pF
R
R
620 kW
1
VDD
3
GND
4
Enable
110 kW
2
R
1
+ 1.19ǒ ) 1Ǔ
V
OUT
R
2
Figure 3. Typical 8.0 V Step−Up Application Circuit
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