ame5140 AME, Inc., ame5140 Datasheet - Page 14

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

AME5140
14
n Application Hints
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
AME, Inc.
0
15KHz~25KHZ
0
15KHZ
PWM signal
0.05
10 F
C
V
10
IN
20KHZ
IN
0.10
5V
V
Efficiency Vs I
FB
20
0.15
VS Duty Cycle
Duty Cycle
V
Figure 6: 6S3P White LEDs Application in Li-Ion Battery
IN
I
=5V
25KHZ
OUT
0.20
30
(mA)
IN
EN
GND
0.25
40
OUT
AME5140
I
V
OUT
OUT
0.30
=60mA
=19.8V
2.2
50
L1
0.35
60
0.40
SW
F B
1.6 MHz Boost Converter with
60
40
20
R1
59
0
0
15KHZ
0.05
R2
59
30V Internal FET Switch
20KHZ
I
0.10
OUT
59
VS Duty Cycle
R3
Duty Cycle
0.15
V
OUT
0.20
25KHZ
C
47 F
OUT
0.25
0.30
0.35
Rev.G.04