Diodes AP3003 - Manual (Page 11)

150kHz 3A BUCK DC-DC CONVERTER AP3003
Data Sheet
11
Aug. 2008 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
Typical Performance Characteristics (Continued)
Figure 18. Switching Frequency vs. Junction Temperature
Figure 16. On/Off Threshold Voltage Figure 17. On/Off Pin Current vs. On/Off Pin Voltage
-40 -20 0 20 40 60 80 100 120
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
OFF
ON O
N
/O
F
F
V
ol
tag
e
(V)
Junction Temperature ( O C)
V
IN
=12V
0.0 2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5 25.0
0
1
2
3
4
5
6
7
8
O
N
/O
F
F
Pin C
ur
ren
t (
µA)
ON/OFF Pin Voltage (V)
V
IN
=32V, T
J
=25 O C
-40 -20 0 20 40 60 80 100 120
120
124
128
132
136
140
144
148
152
156
160
F
requency
(k
Hz
)
Junction Temperature ( O C)
vs. Junction Temperature