Datasheet

V = 1 V/div
OUT
Time = 2 ms/div
EN = 2 V/div
V = 5 V/div
IN
PWRGD = 5 V/div
V = 1 V/div
OUT
Time = 2 ms/div
EN = 2 V/div
V = 5 V/div
IN
PWRGD = 5 V/div
V = 50 mV/div (ac coupled)
OUT
Time = 200 µs/div
I = 2 A/div
OUT
Slew rate = 0.5 A/µs
V = 1 V/div
OUT
Time = 2 ms/div
EN = 2 V/div
V = 5 V/div
IN
PWRGD = 5 V/div
0
10
20
30
40
50
60
70
80
90
100
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
Output Current (A)
Efficiency (%)
V
IN
= 3.3 V
V
IN
= 5 V
G001
0
10
20
30
40
50
60
70
80
90
100
0.001 0.01 0.1 1
Output Current (A)
Efficiency (%)
V
IN
= 3.3 V
V
IN
= 5 V
G002
TPS54519
www.ti.com SLVSAT3A –SEPTEMBER 2011–REVISED DECEMBER 2013
EFFICIENCY EFFICIENCY
vs vs
LOAD CURRENT LOAD CURRENT
Figure 29. Figure 30.
TRANSIENT RESPONSE, 2 A STEP POWER UP VOUT, VIN
Figure 31. Figure 32.
POWER DOWN VOUT, VIN POWER UP VOUT, EN
Figure 33. Figure 34.
Copyright © 2011–2013, Texas Instruments Incorporated Submit Documentation Feedback 25
Product Folder Links: TPS54519