AP3418 Datasheet, PDF (6/12 Pages) BCD Semiconductor Manufacturing Limited – 1.5A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter

Data Sheet
1.5A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3418
Typical Performance Characteristics
V_IN=5V, T_A=25ºC, unless otherwise specified.
100
95
V = 5.0V
IN
V =1.8V
OUT
90
85
80
75
70
65
60
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Output Current (A)
Figure 4. Efficiency vs. Output Current
100
95
90
85
80
75
70
65
60
55
V = 1.8V
50
OUT
I = 1.5A
OUT
45
40
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
Figure 5. Efficiency vs. Input Voltage
0.64
0.63
0.62
V = 5.0V
IN
0.61
0.60
0.59
0.58
0.57
0.56
-40 -20
0
20 40 60 80 100 120 140
Temperature (^oC)
Figure 6. Reference Voltage vs. Temperature
2.8
V = 5.0V
IN
2.6
2.4
2.2
2.0
1.8
-40 -20 0
20 40 60 80 100 120 140
Temperature (^oC)
Figure 7. Switch Current Limit vs. Temperature
Aug. 2012 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
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