
Data Sheet
1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3407/A
Dec. 2011 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
7
Typical Performance Characteristics (Continued)
Figure 8. Frequency vs. Temperature Figure 9. Feedback Voltage vs. Temperature
Figure 10. OCP Current Limit vs. Temperature Figure 11. R
DS (ON)_UP
vs. Temperature
-40 0 40 80 120 160
1.2
1.3
1.4
1.5
1.6
1.7
Frequency (MHz)
Temperature (
O
C)
V
IN
=3.3V
V
OUT
=2.5V
-40 0 40 80 120 160
0.57
0.58
0.59
0.60
0.61
0.62
Feedback Voltage (V)
Temperature (
O
C)
V
IN
=3.3V
-40 0 40 80 120 160
1.2
1.4
1.6
1.8
2.0
2.2
OCP Current Limit (A)
Temperature (
O
C)
V
IN
=3.3V
V
FB
=0.55V
-40 0 40 80 120 160
0.0
0.1
0.2
0.3
0.4
0.5
R
DS(ON)-UP
(Ω)
Temperature (
O
C)
V
IN
=3.3V
I
SW
=200mA
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