Datasheet



SLUS486B − AUGUST 2001 − REVISED JULY 2003
17
www.ti.com
APPLICATION INFORMATION
Figure 12
I
OUT
− Output Current − A
Efficiency − %
Delta Power Dissipation − W
0 5 10 15 20
74
76
78
80
82
84
86
88
90
92
94
0.1
0.0
0.2
0.3
0.4
0.5
96
V
IN
= 5 V
V
OUT
= 1.8 V
f
SW
= 250 kHz
ADAPTIVE
PREDICTIVE
DELTA POWER
DISSIPATION
EFFICIENCY
vs
OUTPUT CURRENT
Figure 13
0.1
0.0
0.2
0.3
0.4
0.5
74
76
78
80
82
84
86
88
90
92
94
96
I
OUT
− Output Current − A
V
IN
= 5 V
V
OUT
= 0.9 V
f
SW
= 250 kHz
Efficiency − %
Delta Power Dissipation − W
ADAPTIVE
PREDICTIVE
DELTA POWER
DISSIPATION
0 5 10 15 20
EFFICIENCY
vs
OUTPUT CURRENT
Figure 14
0 5 10 15 20
0.2
0.0
0.4
0.6
0.8
1.2
1.0
74
76
78
80
82
84
86
88
90
92
94
96
V
IN
= 5 V
V
OUT
= 1.8 V
f
SW
= 500 kHz
ADAPTIVE
PREDICTIVE
DELTA POWER
DISSIPATION
I
OUT
− Output Current − A
Efficiency − %
Delta Power Dissipation − W
EFFICIENCY
vs
OUTPUT CURRENT
Figure 15
0 5 10 15 20
0.2
0.0
0.4
0.6
0.8
1.2
1.0
74
76
78
80
82
84
86
88
90
92
94
96
V
IN
= 5 V
V
OUT
= 0.9 V
f
SW
= 500 kHz
ADAPTIVE
PREDICTIVE
DELTA POWER
DISSIPATION
Efficiency − %
Delta Power Dissipation − W
I
OUT
− Output Current − A
EFFICIENCY
vs
OUTPUT CURRENT