User Manual

150kHz 3A BUCK DC-DC CONVERTER AP3003
Data Sheet
10
Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Typical Performance Characteristics (Continued)
Figure 14. Quiescent Current vs. Junction Temperature
Figure 12. Switch Current Limit vs. Junction Te mperature Figure 13. Quiescent Current vs. Supply Voltage
Figure 15. Shutdown Quiescent Current vs. Input Vo ltage
-40-20 0 20406080100120
3.50
3.75
4.00
4.25
4.50
4.75
5.00
5.25
5.50
Switch Current Limit (A)
Junction Temperature (
O
C)
V
IN
=12V
0 5 10 15 20 25 30 35 40
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
Quiescent Current (mA)
Supply Voltage (V)
T
J
=25
O
C
V
ON/OFF
=0, Switch Off
-40-20 0 20406080100120
2.50
2.75
3.00
3.25
3.50
3.75
4.00
4.25
4.50
4.75
5.00
5.25
5.50
Quiescent Current (mA)
Junction Temperature (
o
C)
V
IN
=12V
V
ON/OFF
=0V, Switch OFF
0 4 8 12 16 20 24 28 32 36
0
20
40
60
80
100
120
140
160
180
Shutdown Quiescent Current (µA)
Supply Voltage (V)
T
J
=25
O
C
V
ON/OFF
=5V