ame5140 AME, Inc., ame5140 Datasheet - Page 15

• Manufacturer Part Number: ame5140
• Description: 1.6 Mhz Boost Converter With 30v Internal Fet Switch
• Manufacturer: AME, Inc.

n Application Hints
AME5140
Rev.G.04
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
90
85
80
75
70
65
60
55
50
0
0
AME, Inc.
15KHz~25KHZ
PWM signal
0.05
10
10 F
C
V
IN
IN
0.10
5V
20
V
20KHZ
Efficiency Vs I
FB
0.15
VS Duty Cycle
Duty Cycle
30
I
OUT
Figure 7: 6S4P White LEDs Application in Li-Ion Battery
25KHZ
V
IN
0.20
=5V
40
(mA)
15KHZ
IN
EN
GND
0.25
50
OUT
AME5140
0.30
I
V
OUT
60
OUT
2.2
L1
=80mA
=19.8V
0. 35
70
0.40
80
SW
FB
1.6 MHz Boost Converter With
R1
59
100
80
60
40
20
0
0
0.05
R2
59
30V Internal FET Switch
0.10
20KHZ
I
25KHZ
OUT
R3
59
0.15
VS Duty Cycle
Duty Cycle
0.20
15KHZ
59
R4
0.25
V
OUT
0.30
C
47 F
OUT
0.35
0.40
15