Diodes AP1506 - Manual (Page 9)

AP1506
150KHz, 3A PWM BUCK DC/DC CONVERTER
AP1506
Document number: DS31015 Rev. 7 - 2
9 of 14
www.diodes.com
June 2010
© Diodes Incorporated
Typical Performance Characteristics
AP1506 Efficiency vs. Temperature
(V
IN
= 12V, V
OUT
= 5V, Io = 3A)
72
73
74
75
76
77
78
79
80
81
82
83
-50 -30 -10 10 30 50 70 90 110 130 150
Temperature (T
A
)
E
fficiency (
%)
AP1506 Efficiency vs. Temperature
(V
IN
= 12V, V
OUT
= 3.3V, Io = 3A)
70
71
72
73
74
75
76
77
78
-50 -30 -10 10 30 50 70 90 110 130 150
Temperature (T
A
) ( o C)
E
ff
ici
e
n
c
y
(%
)
AP1506 Saturation Voltage vs. Temperature
(Vcc = 12V, V
FB
= 0V, VSD = 0)
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.6
-50 -25 0 25 50 75 100 125
Temperature (T
A
) (
o
C)
Saturation Voltage (V
)
3A
2A
1A
0.5A
AP1506 Switch Current Limit vs. Temperature
(Vcc = 12V, V
FB
= 0V)
3
3.5
4
4.5
5
5.5
-50 -30 -10 10 30 50 70 90
Temperature (T
A
) (
o
C)
Sw
itch C
u
rrent Limit (A)
AP1506 Supply Current vs. Temperature
(Vcc = 12V, No Load, V
on/off
= 0V (Switch ON), V
on/off
= 5V (Switch OFF))
5
6
7
8
9
10
11
12
13
14
15
-50 -30 -10 10 30 50 70 90 110 130 150
Temperature (T
A
) (
o
C)
Supply C
u
rrent (mA)
Switch ON
30
35
40
45
50
55
60
-50 -30 -10 10 30 50 70 90 110 130 150
Temperature (T
A
) (
o
C)
Supply C
u
rrent (u
A)
Switch OFF