Datasheet

500
600
700
800
900
0 5 10 15 20
V -InputVoltage-V
IN
f -SwitchingFrequency-kHz
sw
V =1.8V
O
V =3.3V
O
500
600
700
800
900
0 0.5 1 1.5 2
I -OutputCurrent- A
O
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
V -50mV/div
IN
SW-5V/div
TPS54225
www.ti.com SLVSA15C –OCTOBER 2009– REVISED FEBRUARY 2011
TYPICAL CHARACTERISTICS (continued)
Figure 9. SWICHING FREQUENCY vs. INPUT VOLTAGE Figure 10. SWITCHING FREQUENCY vs. OUTPUT
CURRENT
Figure 11. VOLTAGE RIPPLE AT OUTPUT Figure 12. VOLTAGE RIPPLE AT INPUT
© 2009–2011, Texas Instruments Incorporated 11
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