Datasheet

400
500
600
700
800
f -SwitchingFrequency-kHz
sw
V =1.8V
O
V =3.3V
O
0 5 10 15 20
V -InputVoltage-V
I
0 1 2 3 4
I -OutputCurrent- A
O
400
500
600
700
800
f -SwitchingFrequency-kHz
sw
V =1.8V
O
V =3.3V
O
V =1.05V
O
V (10mV/div)
O
SW(5V/div)
V =1.05V
O
VIN(50mV/div)
SW(5V/div)
TPS54425
www.ti.com SLVSA84C –AUGUST 2010– REVISED JULY 2011
TYPICAL CHARACTERISTICS (continued)
SWITCHING FREQUENCY SWITCHING FREQUENCY
vs vs
INPUT VOLTAGE (I
O
= 1 A) OUTPUT CURRENT
Figure 9. Figure 10.
VOLTAGE RIPPLE AT OUTPUT (I
O
= 2 A) VOLTAGE RIPPLE AT INPUT (I
O
= 2 A)
Figure 11. Figure 12.
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