XR75100 Datasheet, PDF (8/15 Pages) Exar Corporation – 40V Synchronous Step Down COT Controller

XR75100
1,000
100
Typical
Calculated
10
1
10
100
RON (kΩ)
Figure 7: TON versus RON, V_IN=24V
600
550
500
450
400
350
300
0
2
4
6
8 10
I_OUT (A)
Figure 9: frequency versus I_OUT, V_IN=24V
16
14
12
10
8
6
4
2
0
0.5 0.6 0.7 0.8 0.9 1
RLIM (kΩ)
Figure 11: I_OCP versus RLIM
© 2016 Exar Corporation
8 / 15
1,400
1,200
1,000
Typical
Calculated
800
600
400
200
0
5 10 15 20 25 30
V_IN (V)
Figure 8: TON versus V_IN, RON=19.1k
600
550
500
450
400
350
300
5
10 15 20 25 30
V_IN (V)
Figure 10: frequency versus V_IN, I_OUT=10A
610
605
600
595
590
-40 -20 0 20 40 60 80 100 120
T_J (°C)
Figure 12: V_REF versus temperature
exar.com/XR75100
Rev 1C