Diodes AP3407/A - Manual (Page 6)

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
2 3 4 5 6
72
80
88
96
Ef
ficiency (%)
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
O
u
tput 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
Ef
fi
ciency (%)
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
F
requ
ency
(M
Hz)
Input Voltage (V)
I
OUT
=300mA