Ap1501, Typical performance characteristics, 150khz, 3a pwm buck dc/dc converter – Diodes AP1501 User Manual
Page 6
AP1501
150KHZ, 3A PWM BUCK DC/DC CONVERTER
AP1501 Rev. 11
6 of 12
JANUARY 2009
www.diodes.com
©
Diodes Incorporated
Typical Performance Characteristics
Typical Performance Characteristics
Normalized Output Voltage
4.90
4.95
5.00
5.05
5.10
-50
-25
0
25
50
75
100
125
O
U
TPU
T
VO
LTAG
E (V)
V
IN
=20V, I
LOAD
=3A
Normalized at T
J
=25
o
C
JUNCTION TEMPERATURE(
o
C)
JUNCTION TEMPERATURE(
o
C)
S
W
IT
CH CURRE
NT
LIMIT
(A
)
Switch Current Limit
0.0
5.0
10.0
15.0
20.0
25.0
-50
-25
0
25
50
75
100
125
JUNCTION TEMPERATURE(
o
C)
S
U
P
P
L
Y
CURRE
NT
(mA
)
Operating Quiescent Current
JUNCTION TEMPERATURE(
o
C)
E
F
F
ICIE
NCY
(%
)
Efficiency
100
65
70
75
80
85
90
95
8
10
15
20
25
30
35
40
5V
3.3V
3A Load
0.60
0.80
1.00
1.20
1.40
1.60
0.5
1
2
3
SWITCH CURRENT(A)
SATU
R
A
TIO
N
VO
LTAG
E (V)
1
2
3
1 : -40
o
C
2 : 25
o
C
3 : 125
o
C
Switch Saturation Voltage
3.50
4.00
4.50
5.00
5.50
-50
-25
0
25
50
75
100 125
V
IN
=12V, V
OUT
=5V
SUPPLY VOLOTAGE (V)
CURRE
NT
(uA
)
0.0
40.0
80.0
120.0
160.0
200.0
Shutdown Quiescent Current
10
20
30
40
V
ON/OFF
=5V
1 : -40
o
C
2 : 25
o
C
3 : 125
o
C
1
3
2
Switch ON
Switch OFF