Ap1501a, Typical performance characteristics, 150khz, 5a pwm buck dc/dc converter – Diodes AP1501A User Manual
Page 8
AP1501A
150KHz, 5A PWM BUCK DC/DC CONVERTER
AP1501A Rev. 10
8 of 14
SEPTEMBER 2009
DS31191
©
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
LTAGE
CHANGE
V
IN
=20V, I
LOAD
=3A
Normalized at T
J
= 25°C
JUNCTION TEMPERATURE(°C)
JUNCTION TEMPERATURE(°C)
S
W
IT
C
H
CU
RR
EN
T
L
IM
IT
(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(°C)
SU
P
PL
Y CU
RR
EN
T
(
m
A
)
Operating Quiescent Current
INPUT VOLTAGE
EFF
IC
IEN
CY (
%
)
Efficiency
100
65
70
75
80
85
90
95
8
10
15
20
25
30
35
40
5V
3.3V
5A Load
1.2
1.3
1.4
1.5
1.6
1.7
2.0
3
4
5
SWITCH CURRENT(A)
S
A
T
U
R
ATI
O
N V
O
L
TAGE
(V
)
1
2
3
1 : -40
o
C
2 : 25
o
C
3 : 125
o
C
Switch Saturation Voltage
5.5
6.0
6.5
7.0
7.5
-50
-25
0
25
50
75
100 125
V
IN
=12V, V
OUT
=5V
SUPPLY VOLTAGE (V)
CU
RR
EN
T
(
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