Diodes AP3407/A Manual de usuario Pagina 6

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Data Sheet
1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3407/A
Dec. 2011 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
6
23456
72
80
88
96
Efficiency (%)
Input Voltage (V)
V
OUT
=2.5V
I
OUT
=0.5A
I
OUT
=1.0A
200 400 600 800 1000 1200
2.47
2.48
2.49
2.50
2.51
Output Voltage (V)
Output Current (mA)
V
IN
=3.3V
V
OUT
=2.5V
200 400 600 800 1000 1200
40
45
50
55
60
65
70
75
80
85
90
95
100
Efficiency (%)
Output Current (mA)
V
IN
=3.3V
V
OUT
=2.5V
Typical Performance Characteristics
Figure 4. Efficiency vs. Output Current
Figure 5. Efficiency vs. Input Voltage
Figure 6. Output Voltage vs. Output Current Figure 7. Frequency vs. Input Voltage
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5
1.3
1.4
1.5
1.6
1.7
1.8
Frequency (MHz)
Input Voltage (V)
I
OUT
=300mA
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