Datasheet

5
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
VIN (V)
VOLTAGE AT THE RT PIN (V)
34 k:
300 k:
200 k:
77 k:
R
T
= 500 k:
15 25 35 45 55 65 75
LM34923
SNVS695A –MARCH 2011–REVISED FEBRUARY 2013 www.ti.com
Typical Performance Characteristics (continued)
Current Limit Off-Time
vs.
V
FB
Maximum Switching Frequency
Figure 8. Figure 9.
Voltage at the R
T
Pin Operating Current into V
IN
Figure 10. Figure 11.
UVO Pin Low Voltage
vs.
Shutdown Current into V
IN
Sink Current
Figure 12. Figure 13.
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