Diodes AP1507 - Manual (Page 7)

AP1507
150KHz, 3A PWM BUCK DC/DC CONVERTER
AP1507
Document number: DS31067 Rev. 3 - 2
7 of 12
www.diodes.com
May 2012
© Diodes Incorporated
Typical Characteristics
-50 -30 -10 10 30 50 70 90 130 110 150
TEMPERATURE (°C)
Efficiency vs. Temperature
EF
FI
C
IE
N
C
Y
(%
)
83
82
81
80
79
78
74
73
72
77
76
75
V = 12V
V = 5V
I = 3A
IN
OUT
O
-50 -30 -10 10 30 50 70 90 130 110 150
TEMPERATURE (°C)
Efficiency vs. Temperature
EFF
IC
IE
N
C
Y
(%
)
78
77
76
75
72
71
70
74
73
V = 12V
V = 3.3V
I = 3A
IN
OUT
O
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
Saturation Voltage vs. Temperature
SA
TU
R
AT
IO
N V
O
LTA
G
E (
V
)
1.6
1.5
1.4
1.3
1.2
0.9
0.8
0.7
1.1
1
3A
2A
1A
0.5A
V = 12V
V = 0V
V = 0V
CC
FB
SD
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
Switch Current Limit vs. Temperature
SWI
T
C
H
C
U
R
R
EN
T L
IM
IT (
A
)
1.6
1.4
1.2
0.9
0.7
1.1
V = 12V
V = 0V
CC
FB
-50 -30 -10 10 30 50 70 90 130 110 150
TEMPERATURE (°C)
Supply Current vs. Temperature
SUPP
L
Y
C
U
R
R
ENT (
m
A
)
15
14
13
12
11
07
06
05
09
08
10
V = 12V
No Load
V
= 0V
Switch ON
CC
ON
-50 -30 -10 10 30 50 70 90 130 110 150
TEMPERATURE (°C)
Supply Current vs. Temperature
S
U
PPL
Y
C
U
R
R
EN
T
(
µ
A
)
60
55
50
35
30
40
45
V = 12V
No Load
V
= 5V
Switch OFF
CC
OFF