Datasheet

1
1.2
1.4
1.6
1.8
2
2.5 3 3.5 4 4.5 5 5.5 6
T
A
= 255C
Load Ramp = 1A/10 ms
Threshold Trip Current − A
V
I
− Input Voltage − V
TPS2043B,
TPS2044B,
TPS2053B,
TPS2054B
Threshold Trip Current − A
V
I
− Input Voltage − V
1
1.2
1.4
1.6
1.8
2
2.5 3 3.5 4 4.5 5 5.5 6
T
A
= 255C
Load Ramp = 1A/10 ms
TPS2041B,
TPS2042B,
TPS2051B,
TPS2052B
0
20
40
60
80
100
0 2.5 5 7.5 10 12.5
Peak Current − A
V
I
= 5 V,
T
A
= 255C
Current-Limit Response − sµ
2.1
2.14
2.18
2.22
2.26
2.3
−50 0 50 100 150
UVLO Rising
UVLO Falling
UVLO − Undervoltage Lockout − V
T
J
− Junction Temperature − 5C
TPS2041B, TPS2042B
TPS2043B, TPS2044B, TPS2051B
TPS2052B, TPS2053B, TPS2054B
www.ti.com SLVS514L –JUNE 2010– REVISED JUNE 2011
TYPICAL CHARACTERISTICS (continued)
THRESHOLD TRIP CURRENT THRESHOLD TRIP CURRENT
vs vs
INPUT VOLTAGE INPUT VOLTAGE
Figure 27. Figure 28.
UNDERVOLTAGE LOCKOUT CURRENT-LIMIT RESPONSE
vs vs
JUNCTION TEMPERATURE PEAK CURRENT
Figure 29. Figure 30.
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