ap3409 BCD Semiconductor Manufacturing Limited, ap3409 Datasheet - Page 7

• Manufacturer Part Number: ap3409
• Description: 3a, 4mhz High Efficiency Synchronous Buck Converter
• Manufacturer: BCD Semiconductor Manufacturing Limited

Typical Performance Characteristics
V
Jul. 2010 Rev. 1. 0
3A, 4MHz High Efficiency Synchronous Buck Converter
600
500
400
300
200
100
100
IN
Figure 4. Supply Current vs. Input Voltage
90
80
70
60
50
40
30
2.5
=V
Figure 6. Efficiency vs. Output Current
0
DD
3.0
=V
500
PVDD
3.5
1000
=3.3V, T
Output Current (mA)
Input Voltage (V)
4.0
1500
4.5
A
2000
=25℃, unless otherwise specified.
5.0
V
2500
OUT
V
=2.5V
FB
V
V
=0.75V
5.5
IN
IN
3000
=5.0V
=3.3V
6.0
3500
7
Figure 5. Supply Current vs. Ambient Temperature
700
600
500
400
300
200
100
140
120
100
80
60
-60
-60
Figure 7. PMOS ON Reisistance vs.
BCD Semiconductor Manufacturing Limited
-30
-30
Ambient Temperature
Preliminary Datasheet
0
0
Ambient Temperature (
Ambient Temperature (
30
30
60
60
O
o
C)
C )
90
90
AP3409
V
V
V
V
IN
FB
IN
FB
=3.3V
=0.75V
=3.3V
=0.75V
120
120
150
150