Datasheet

–40
1.55
1.50
20
–25 35–10 505 65 95 110 12580
1.65
1.60
1.75
1.70
I
DDQ
– Quiescent Current – mA
T
J
– Junction Temperature – °C
Non-Switching
40
0
–40 20–25 35–10 505 65 95 110 12580
T
J
– Junction Temperature – °C
60
20
120
80
140
100
V
IN
= 4.5 V
V
IN
= 12 V
V
IN
= 18 V
I
SD
– Shutdown Current – mA
3.6
–40 20–25 35–10 505 65 95 110 12580
T
J
– Junction Temperature – °C
3.7
3.8
4.1
3.9
4.2
4.0
V
UVLO
– Undervoltage Lockout Threshold Voltage – V
UVLO OFF
UVLO ON
–40
1.14
1.12
20–25 35–10 505 65 95 110 12580
1.20
1.18
1.26
1.24
V
EN
– Enable Voltage Threshold – V
T
J
– Junction Temperature – °C
Enable ON
Enable OFF
1.16
1.22
TPS54290, TPS54291, TPS54292
www.ti.com SLUS973 –OCTOBER 2009
TYPICAL PERFORMANCE CHARACTERISTICS
QUIESCENT CURRENT SHUTDOWN CURRENT
vs vs
TEMPERATURE TEMPERATURE
Figure 1. Figure 2.
UVLO TURN-ON AND TURN-OFF THRESHOLDS ENx TURN ON AND OFF THRESHOLD
vs vs
TEMPERATURE TEMPERATURE
Figure 3. Figure 4.
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