ame5142 AME, Inc., ame5142 Datasheet - Page 15

• Manufacturer Part Number: ame5142
• Description: White Led Boost Converter In Tiny Package
• Manufacturer: AME, Inc.

n Application Hints
Rev. A.04
AME5142
4.7 F
4.7 F
4.7 F
V
C
V
C
V
C
IN
IN
IN
IN
IN
Figure 16: Twelve White LEDs Application in Li-Ion Battery
IN
Figure 14: Ten White LEDs Application in Li-Ion Battery
Figure 15: Ten White LEDs Application in Li-Ion Battery
3.3V to 5.5V
3.3V to 5.5V
3.3V to 5.5V
AME, Inc.
IN
EN
GND
IN
EN
GND
IN
EN
GND
AME5142
AME5142
AME5142
10 H
10 H
10 H
L1
L1
L1
OVP
OVP
OVP
SW
SW
SW
FB
FB
FB
7.5
7.5
7.5
R2
R2
R2
7.5
7.5
7.5
R2
R2
R2
V
V
V
OUT
OUT
OUT
C
C
C
1 F
1 F
1 F
OUT
OUT
OUT
100
100
95
90
85
80
90
85
80
75
70
65
60
55
50
White LED Boost Converter
95
90
85
80
3
0
3
V
IN
= 3.3V
3.5
3.5
10
Efficiency Vs V
Efficiency Vs I
Efficiency Vs V
4
4
I
OUT
V
V
V
IN
In Tiny Package
V
IN
20
I N
(mA)
IN
(v)
= 3.6V
(v)
= 4.2V
4.5
4.5
OUT
IN
IN
V
30
V
V
I
I
OUT
LED
I
OUT
OUT
OUT
OUT
5
5
= 20mA
= 40mA
= 15.6V
= 40mA
= 18.6V
=15.6V
5.5
40
5.5
15