Data sheet, Typical performance characteristics, 5v, t – Diodes AP3417A User Manual
Page 6: Unless otherwise specified, Figure 4. efficiency vs. input voltage, Gure 5. efficiency vs. output current
Data Sheet
1A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3417A
Aug. 2012 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
6
Typical Performance Characteristics
V
IN
=5V, T
A
=25
ºC
, unless otherwise specified.
Figure 4. Efficiency vs. Input Voltage
Fi
gure 5. Efficiency vs. Output Current
Figure 6. Reference Voltage vs. Temperature Figure 7. Switch Current Limit vs. Temperature
2.5
3.0
3.5
4.0
4.5
5.0
5.5
50
55
60
65
70
75
80
85
90
95
100
Input Voltage (V)
Ef
fic
ienc
y (%)
V
OUT
= 1.8V
I
OUT
= 1.0A
0.0
0.2
0.4
0.6
0.8
1.0
60
65
70
75
80
85
90
95
100
Output Current (A)
Ef
ficien
c
y
(%)
V
IN
= 5.0V
V
OUT
=1.8V
-40
-20
0
20
40
60
80
100
120
140
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
Temperature (
o
C)
Switc
h
Cu
rrent Li
m
it
(A
)
V
IN
= 5.0V
-40
-20
0
20
40
60
80
100
120
140
0.56
0.57
0.58
0.59
0.60
0.61
0.62
0.63
0.64
Temperature (
o
C)
Reference V
o
lt
age
(V)
V
IN
= 5.0V