Datasheet

SWITCHINGFREQUENCY
vs
OUTPUTCURRENT
0
100
200
300
400
500
0.001 0.01 0.1 1 10
I
OUT
-OutputCurrent- A
f
SW
- Swithching Frequency - kHz
TONSEL =2V
CH2 Auto-skip
CH2OOA
CH2PWMOnly
CH1PWMOnly
CH1 Auto-skip
CH1OOA
SWITCHINGFREQUENCY
vs
OUTPUTCURRENT
0
100
200
300
400
500
0.001 0.01 0.1 1 10
I
OUT
-OutputCurrent- A
f
SW
- Swithching Frequency - kHz
TONSEL =3.3V
CH2 Auto-skip
CH2OOA
CH2PWMOnly
CH1PWMOnly
CH1 Auto-skip
CH1OOA
SWITCHINGFREQUENCY
vs
INPUTVOLTAGE
0
100
200
300
400
500
6 8 10 12 14 16 18 20 22 24 26
V
IN
-InputVoltage-V
f
SW
- Swithching Frequency - kHz
TONSEL =5V
CH1
CH2
SWITCHINGFREQUENCY
vs
OUTPUTCURRENT
0
100
200
300
400
500
0.001 0.01 0.1 1 10
I
OUT
-OutputCurrent- A
f
SW
- Swithching Frequency - kHz
TONSEL =GND
CH2 Auto-skip
CH2OOA
CH2PWMOnly
CH1PWMOnly
CH1 Auto-skip
CH1OOA
TPS51123
www.ti.com SLUS890E –DECEMBER 2008–REVISED JANUARY 2013
TYPICAL CHARACTERISTICS (continued)
Figure 13. Figure 14.
Figure 15. Figure 16.
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