AP1501A
150Khz, 5A PWM Buck DC/DC Converter
Typical Performance Characteristics
Typical Performance Characteristics
Normalized Output Voltage
Efficiency
100
V
IN
=20V, I
LOAD
=3A
Normalized at T
J
=25
o
C
5.10
OUTPUT VOLTAGE CHANGE
95
EFFICIENCY (%)
5.05
90
85
80
75
70
5A Load
5.00
5V
4.95
3.3V
4.90
-50
-25
0
25
50
75
100
125
65
8
10
15
20
25
Input Voltage
30
35
40
JUNCTION TEMPERATURE(
o
C)
Switch Saturation Voltage
1.7
SATURATION VOLTAGE (V)
Switch Current Limit
7.5
SWITCH CURRENT LIMIT (A)
1.6
1.5
1.4
1 : -40
o
C
2 : 25
o
C
3 : 125
o
C
V
IN
=12V, V
OUT
=5V
7.0
6.5
1
1.3
1.2
3
2.0
3
4
5
2
6.0
5.5
-50
-25
0
25
50
75
100 125
o
SWITCH CURRENT(A)
JUNCTION TEMPERATURE( C)
Operating Quiescent Current
25.0
SUPPLY CURRENT (mA)
Shutdown Quiescent Current
200.0
160.0
CURRENT (uA)
20.0
15.0
10.0
5.0
0.0
-50
-25
0
25
50
75
100
125
Switch ON
Switch OFF
120.0
80.0
40.0
0.0
1
2
3
V
ON/OFF
=5V
1 : -40
o
C
2 : 25
o
C
3 : 125
o
C
20
30
40
10
JUNCTION
TEMPERATURE(
o
C)
SUPPLY VOLOTAGE (V)
Anachip Corp.
www.anachip.com.tw
5/11
Rev.0.4 Feb 19, 2004
ANACHIP [ ANACHIP CORP ]
