Datasheet

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Efficiency - %
100
90
80
70
60
50
40
0.0 0.5 1.0 1.5 2.0 2.5 3.0
I - Output Current - A
out
V = 3.3 V
O
V = 2.5 V
O
V = 1.8 V
O
V = 1.8 V
O
V = 3.3 V
O
f - Switching Frequency - kHz
SW
V - Input Voltage - V
IN
900
800
700
600
500
0
5
10 15 20
EN (10 V / div)
V (0.5 V / div)
OUT
PG (5 V / div)
400 s / divµ
V (50 mV / div)
OUT
I (2 A / div)
OUT
100 s / divµ
TPS54325
SLVS932D –MAY 2009–REVISED AUGUST 2012 www.ti.com
TYPICAL CHARACTERISTICS (continued)
VIN = 12 V, T
A
= 25°C (unless otherwise noted)
break is for spacing
Figure 5. 1.05-V, 0-A TO 3-A LOAD TRANSIERESPONSE Figure 6. START-UP WAVE FORM
Figure 7. EFFICIENCY vs. OUTPUT CURRENT Figure 8. SWITCHING FREQUENCY vs. INPUT VOLTAGE
(I
O
=1 A)
(V
IN
= 12 V)
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