Datasheet

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−50 −25 50 100 1250
699
704
697
25 75
702
698
700
703
701
V
FB
− Feedback Voltage − V
T
J
− Junction Temperature − °C
VDD
28 V
4.5 V
12 V
−50 −25 50 100 1250
0
30
−15
25 75
20
−10
5
25
10
−5
15
High Level Output Current
Low Level Output Current
I
SENSE
− Sense Amplifier Output Current − mA
T
J
− Junction Temperature − °C
f
SW
− Switching Frequency − kHz
V
VDD
− Input Voltage − V
4 8 16 24 2812 20
500
490
497
491
493
498
496
494
499
495
492
R
RT
= 90.1kΩ
A
DIFF
− Sense Amplifier Gain − V/V
T
J
− Junction Temperature − °C
−50 −25 50 100 1250 25 75
0.9965
0.9980
1.0005
0.9995
0.9970
0.9985
1.000
0.9990
0.9975
V
DD
= 4.5 V
V
DD
= 2.5 V
V
DD
= 1.25 V
V
DD
= 0.5 V
TPS40075
SLUS676A – MAY 2006 – REVISED SEPTEMBER 2007
TYPICAL CHARACTERISTICS (continued)
FEEDBACK REGULATION VOLTAGE SENSE AMPLIFIER OUTPUT CURRENT
vs vs
JUNCTION TEMPERATURE JUNCTION TEMPERATURE
Figure 7. Figure 8.
CURRENT SENSE AMPLIFIER GAIN SWITCHING FREQUENCY
vs vs
JUNCTION TEMPERATURE INPUT VOLTAGE
Figure 9. Figure 10.
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