AP3408 Datasheet, PDF (7/12 Pages) BCD Semiconductor Manufacturing Limited – 2A, 4MHz High Efficiency Synchronous Buck Converter

Preliminary Datasheet
2A, 4MHz High Efficiency Synchronous Buck Converter
AP3408
Typical Performance Characteristics
V_IN=V_DD =V_PVDD=3.3V, T_A=25℃, unless otherwise specified.
600
500
400
300
200
V =0.75V
FB
100
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
Figure 4. Supply Current vs. Input Voltage
700
600
500
400
300
200
100
-60
-30
V =3.3V
IN
V =0.75V
FB
0
30
60
90
Ambient Temperature (^oC)
120
150
Figure 5. Supply Current vs. Ambient Temperature
100
90
80
70
60
50
40
30
0
V =2.5V
OUT
V =3.3V
IN
V =5.0V
IN
500
1000
1500
Output Current (mA)
2000
2500
Figure 6. Efficiency vs. Output Current
140
120
100
80
60
-60
-30
V =3.3V
IN
V =0.75V
FB
0
30
60
90
Ambient Temperature (^oC)
120
150
Figure 7. PMOS ON Resistance vs.
Ambient Temperature
Jul. 2011 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
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