Datasheet

6
200
10 14 18 22
V
IN
– Input Voltage – V
250
500
f
SW
– Switching Frequency – kHz
350
300
450
400
I
O
= 10 A
Auto-Skip
8 12 16 20
R
RF
= 100 kW
R
RF
= 39 kW
R
RF
= 200 kW
R
RF
= 470 kW
0.001
0.1
0.01 100
I
OUT
– Output Current – A
1
1000
f
SW
– Switching Frequency – kHz
10
100
V
IN
= 12 V
R
RF
= 470 kW
0.1 1 10
FCCM
Auto-Skip
0.001
0.1
0.01 100
1
1000
f
SW
– Switching Frequency – kHz
10
100
V
IN
= 12 V
R
RF
= 200 kW
0.1 1 10
FCCM
Auto-Skip
I
OUT
– Output Current – A
0.001
0.1
0.01 100
1
1000
f
SW
– Switching Frequency – kHz
10
100
V
IN
= 12 V
R
RF
= 100 kW
0.1 1 10
FCCM
Auto-Skip
I
OUT
– Output Current – A
TPS51218
www.ti.com SLUS935B –MAY 2009– REVISED FEBRUARY 2012
TYPICAL CHARACTERISTICS (continued)
SWITCHING FREQUENCY SWITCHING FREQUENCY
vs vs
INPUT VOLTAGE OUTPUT CURRENT
Figure 5. Figure 6.
SWITCHING FREQUENCY SWITCHING FREQUENCY
vs vs
OUTPUT CURRENT OUTPUT CURRENT
Figure 7. Figure 8.
Copyright © 2009–2012, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Link(s): TPS51218