Datasheet

1.04
1.05
1.06
1.07
1.08
I = 0 A
O
0 5 10 15 20
V - Input Voltage - V
I
V - Output Voltage - V
O
I = 1 A
O
100 s/divm
Vout (50 mV/div)
Iout (1 A/div)
0
10
20
30
40
50
60
70
80
90
100
EN - Input Current - Am
0 5 10 15 20
V - Input Voltage - V
I
V = 18 V
IN
0 0.5 1 1.5 2
I - Output Current - A
O
V = 1.8 V
I
1
1.025
1.05
1.075
1.1
V - Output Voltage - V
O
V = 1.2 V
I
V = 5 V
I
0
200
400
600
800
1000
1200
I - Supply Current - A
CC
m
-50 0 50 100 150
T - Junction Temperature - °C
J
0
2
4
6
8
10
12
14
Ivccsdn - Shutdown Current - Am
V = 12 V
IN
-50 0 50 100 150
T - Junction Temperature - °C
J
TPS54227
www.ti.com SLVSAU2B –MAY 2011–REVISED JUNE 2013
TYPICAL CHARACTERISTICS
VIN = 12 V, T
A
= 25°C (unless otherwise noted)
spacer
Figure 1. VIN CURRENT vs JUNCTION TEMPERATURE Figure 2. VIN SHUTDOWN CURRENT vs
JUNCTION TEMPERATURE
Figure 3. EN CURRENT vs EN VOLTAGE Figure 4. 1.05-V OUTPUT VOLTAGE vs OUTPUT CURRENT
Figure 5. 1.05-V OUTPUT VOLTAGE vs INPUT VOLTAGE Figure 6. 1.05-V, 0-A to 2-A LOAD TRANSIENT RESPONSE
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