Diodes AP3433 - Manual (Page 8)

Preliminary Datasheet
3A, 2MHz High Performance Synchronous Buck Converter AP3433
Jul. 2012 Rev. 1. 1 BCD Semiconductor Manufacturing Limited
8
Typical Performance Characteristics (Continued)
Figure 8. Switching Frequency vs. Temperature Figure 9. Reference Voltage vs. Temperature
Figure 10. Switching Frequency vs. RT Resistance Figure 11. Switching Frequency vs. RT Resistance
Low Frequency Range High Frequency Range
-50 -25 0 25 50 75 100 125 150
900
910
920
930
940
950
960
970
980
990
1000
1010
1020
R
T
=180k
Switching
F
req
uency (kHz)
Temperature ( o C)
-50 -25 0 25 50 75 100 125 150
0.816
0.818
0.820
0.822
0.824
0.826
0.828
0.830
0.832
0.834
Reference Voltage
(V
)
Temperature ( ° C)
300 400 500 600 700 800 900 1000
100
200
300
400
500
600
700
800
Swit
chin
g F
requency
(
k
Hz
)
RT Resistance (k Ω )
80 100 120 140 160 180 200
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
Switc
h
ing F
requency
(k
Hz
)
RT Resistance (k Ω )