0
0.2
0.4
0.6
0.8
1
1.2
1.4
0
0.5
1
1.5
2
2.5
3
P
- Output Power - W
O
P
-PowerDissipation-W
D
V
= 5 V, R = 4
DD
L
W
Class AB 4
W
Class AB 8
W
V
= 5 V, R = 8
DD
L
W
0
10
20
30
40
50
60
70
80
90
100
0
0.2
0.4
0.6
0.8
1
1.2
1.4
P
- Output Power - W
O
Efficiency-%
R = 8
L
W, 33
μH
V
= 5 V
DD
V
= 2.5 V
DD
V
= 3.6 V
DD
Class AB
0
10
20
30
40
50
60
70
80
90
0
0.5
1
1.5
2
2.5
P
- Output Power - W
O
Efficiency-%
V
= 2.5 V
DD
V
= 3.6 V
DD
V
= 5 V
DD
Class AB
R = 4
L
W, 33
μH
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
PO - Output Power - W
P
-PowerDissipation-W
D
V
= 3.6 V, R = 4
DD
L
W
V
= 3.6 V, R = 8
DD
L
W
Class AB, 4
W
Class AB, 8
W
650
600
550
500
450
400
350
300
250
200
150
100
0
V
= 3.6 V
DD
V
= 2.5 V
DD
V
= 5 V
DD
0
0.5
1
1.5
3
2.5
2
P
- Output Power - W
O
I
-SupplyCurrent-mA
D
D
R = 4
, 33 μH
L
W
50
360
320
280
240
200
160
120
80
40
0
V
= 3.6 V
DD
V
= 2.5 V
DD
V
= 5 V
DD
P
- Output Power - W
O
I
-SupplyCurrent-mA
D
D
R = 8
, 33 μH
L
W
0
0.25
0.5
0.75
1
1.25
1.5
1.75
3.6
3.2
2.8
2.4
2
1.6
1.2
0.4
0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
V
= 2.5 V
DD
V
= 5 V
DD
V
= 3.6 V
DD
I
-SupplyCurrent-mA
D
D
Shutdown Voltage - V
R = No Load
L
0.8
2
2.2
2.4
2.6
2.8
3
3.2
3.4
3.6
2.5
3
3.5
4
4.5
5
5.5
V
- Supply Voltage - V
DD
I
-SupplyCurrent-mA
D
D
R = 8
, 33 H
L
W
m
R = 8
L
W
No Load
P
-OutputPower-W
O
0
0.5
1
1.5
2
2.5
3
3.5
4
9
14
19
24
29
R - Load Resistance -
L
W
V
= 3.6 V, 10%
DD
V
= 2.5 V, 10%
DD
V
= 5 V, 10%
DD
TPA2035D1
SLOS562 – AUGUST 2008
................................................................................................................................................................................................
www.ti.com
EFFICIENCY
EFFICIENCY
POWER DISSIPATION
vs
vs
vs
OUTPUT POWER
OUTPUT POWER
OUTPUT POWER
Figure 1.
Figure 2.
Figure 3.
POWER DISSIPATION
SUPPLY CURRENT
SUPPLY CURRENT
vs
vs
vs
OUTPUT POWER
OUTPUT POWER
OUTPUT POWER
Figure 4.
Figure 5.
Figure 6.
SUPPLY CURRENT
SHUTDOWN CURRENT
OUTPUT POWER
vs
vs
vs
SUPPLY VOLTAGE
SHUTDOWN VOLTAGE
LOAD RESISTANCE
Figure 7.
Figure 8.
Figure 9.
6
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