Datasheet

0
2
4
6
8
10
12
Ivccsdn - Shutdown Current - Am
-50 0 50 100 150
T - Junction Temperature - °C
J
V = 12 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
V = 12 V
I
0 5 10 15 20
V - Input Voltage - V
I
0
5
10
15
20
25
30
35
40
45
50
EN Input Current - Am
V = 18 V
I
1.03
1.04
1.05
1.06
1.07
V - Output Voltage - V
O
0 0.5 1 1.5 2
I - Output Current - A
O
V = 12 V
I
V = 5 V
I
V = 18 V
I
Vout = 50 mV/div
Iout = 1 A/div
t - Time - 100 sm
1.03
1.04
1.05
1.06
1.07
V - Output Voltage - V
O
0 5 10 15 20
V - Input Voltage - V
I
I = 1 A
O
I = 0 A
O
TPS54229
www.ti.com SLVSAZ8A –SEPTEMBER 2011–REVISED MARCH 2012
TYPICAL CHARACTERISTICS
VIN = 12 V, T
A
= 25°C (unless otherwise noted).
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, 50-mA to 2-A LOAD TRANSIENT
RESPONSE
Copyright © 2011–2012, Texas Instruments Incorporated 9
Product Folder Link(s): TPS54229