Owner manual

Preliminary Datasheet
2A, 4MHz High Efficiency Synchronous Buck Converter AP3408
Jan. 2013 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
7
Typical Performance Characteristics
V
IN
=V
DD
=V
PVDD
=3.3V, T
A
=25℃, unless otherwise specified.
Figure 4. Supply Current vs. Input Voltage
Figure 5. Supply Current vs. Ambient Temperature
Figure 6. Efficiency vs. Output Current Figure 7. PMOS ON Resistance vs.
Ambient Temperature
-60 -30 0 30 60 90 120 150
100
200
300
400
500
600
700
Supply Current (µA)
Ambient Temperature (
o
C)
V
IN
=3.3V
V
FB
=0.75V
0 500 1000 1500 2000 2500
30
40
50
60
70
80
90
100
Efficiency (%)
Output Current (mA)
V
OUT
=2.5V
V
IN
=3.3V
V
IN
=5.0V
-60 -30 0 30 60 90 120 150
60
80
100
120
140
PMOS ON Resistance (mΩ)
Ambient Temperature (
o
C)
V
IN
=3.3V
V
FB
=0.75V
2.53.03.54.04.55.05.56.0
100
200
300
400
500
600
Supply Current (µA)
Input Voltage (V)
V
FB
=0.75V