TPS65163
www.ti.com
SLVSA28 –OCTOBER 2009
BOOST CONVERTER EFFICIENCY
100
90
80
70
60
50
40
30
20
10
BOOST CONVERTER LOAD TRANSIENT RESPONSE
= 250 mA TO 750 mA
I
S
V
V
I
= 15.5 V,
= 26 V,
S
GH
= 50 mA
GH
V
S
I
S
0
0
0.25
0.5
0.75
1
1.25
1.5
I
- Output Current - mA
O
Figure 1.
Figure 2.
BOOST CONVERTER LINE TRANSIENT RESPONSE
BOOST CONVERTER OUTPUT VOLTAGE RIPPLE
= 500 mA
V
= 11.5 V TO 12.5 V
I
S
IN
V
= 15.5 V,
= 750 mA,
= 26 V,
S
I
V
S
IN
V
I
GH
= 50 mA
GH
V
S
V
S
V
V
I
= 15.5 V,
= 26 V,
S
GH
= 50 mA
GH
Figure 3.
Figure 4.
BOOST CONVERTER SWITCH NODE WAVEFORM
CONTINUOUS CONDUCTION MODE
BOOST CONVERTER SWITCH NODE WAVEFORM
DISCONTINUOUS CONDUCTION MODE
V
I
= 15.5 V,
S
V
SW
V
= 50 mA
SW
S
I
INDUCTOR
V
I
= 12 V,
IN
= 250 mA
S
I
INDUCTOR
Figure 5.
Figure 6.
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