AP3406_09 Datasheet, PDF (6/12 Pages) BCD Semiconductor Manufacturing Limited – 1.1MHz, 650mA SYNCHRONOUS DC-DC BUCK CONVERTER

Data Sheet
1.1MHz, 650mA SYNCHRONOUS DC-DC BUCK CONVERTER AP3406
Typical Performance Characteristics
L=10μH, C_OUT=10μF, T_A=25^oC, unless otherwise noted.
1.4
1.3
1.2
1.1
1.0
V =3.6V
IN
V =1.8V
OUT
0.9
I =0A
OUT
0.8
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
0.7
0.6
0.5
0.4
V =3.6V
0.3
IN
V =0.55V
FB
0.2
-60
-40
-20
0
20
40
60
80
100
Temperature (^oC)
Figure 4. Frequency vs. Input Voltage
Figure 5. Supply Current vs. Temperature
1.4
1.3
1.2
1.1
1.0
V =3.6V
IN
0.9
V =0.55V
FB
0.8
-60
-40
-20
0
20
40
60
80
100
Temperature (^oC)
Figure 6. Current Limit vs. Temperature
1.90
1.85
1.80
1.75
1.70
1.65
1.60
1.55
1.50
1.45
0
V =3.6V
IN
V =1.8V
OUT
200
400
600
800
Output Current (mA)
1000
1200
Figure 7. Output Voltage vs. Output Current
Oct. 2009 Rev. 1. 4
BCD Semiconductor Manufacturing Limited
6