AP1501
150Khz, 3A PWM Buck DC/DC Converter
Typical Performance Characteristics
Typical Performance Characteristics
Normalized Output Voltage
5.10
V
IN
=20V, I
LOAD
=3A
Normalized at T
J
=25
o
C
Efficiency
100
95
EFFICIENCY (%)
OUTPUT VOLTAGE (V)
5.05
90
85
80
75
70
3A Load
5.00
5V
3.3V
4.95
4.90
-50
-25
0
25
50
75
100
125
65
8
10
15
20
25
30
35
40
JUNCTION TEMPERATURE(
o
C)
JUNCTION TEMPERATURE(
o
C)
Switch Saturation Voltage
1.60
SATURATION VOLTAGE (V)
Switch Current Limit
5.50
SWITCH CURRENT LIMIT (A)
1.40
1.20
1.00
1 : -40
o
C
2 : 25
o
C
3 : 125
o
C
V
IN
=12V, V
OUT
=5V
5.00
4.50
1
0.80
0.60
3
0.5
1
2
3
2
4.00
3.50
-50
-25
0
25
50
75
100 125
SWITCH CURRENT(A)
JUNCTION TEMPERATURE(
o
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)
Anachip Corp.
www.anachip.com.tw
5/11
SUPPLY VOLOTAGE (V)
Rev.A7 Feb. 10, 2004
ANACHIP [ ANACHIP CORP ]
