PTD08A010W_10 Datasheet, PDF (8/15 Pages) Texas Instruments – DIGITAL POWERTRAIN™ MODULE

PTD08A010W
SLTS285E – MAY 2007 – REVISED FEBRUARY 2010
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EFFICIENCY vs
LOAD CURRENT
TYPICAL CHARACTERISTICS (V_I = 5 V) ⁽¹⁾
EFFICIENCY vs
LOAD CURRENT
EFFICIENCY vs
LOAD CURRENT
100
3.3 V
2.5 V
100
3.3 V
2.5 V
100
3.3 V
2.5 V
90
90
90
80
1.2 V
0.8 V
70
1.8 V
f_SW = 350 kHz
60
V_O
3.3V
2.5V
50
1.8V
1.2V
0.8V
40
0
2
4
6
8
10
I_O – Ouput Current – A
Figure 15.
80
1.8 V
1.2 V
70
0.8 V
60
50
f
SW
=
500
kHz
V_O
3.3V
2.5V
1.8V
1.2V
0.8V
40
0
2
4
6
8
10
I_O – Ouput Current – A
Figure 16.
80
1.2 V
1.8 V
70
0.8 V
60
50
f_SW = 750 kHz
V_O
3.3V
2.5V
1.8V
1.2V
0.8V
40
0
2
4
6
8
10
I_O – Ouput Current – A
Figure 17.
EFFICIENCY vs
LOAD CURRENT
100
3.3 V
90
2.5 V
80
70
60
50
40
30
0
1.2 V
0.8 V
1.8 V
f_SW = 1 MHz
V_O
3.3V
2.5V
1.8V
1.2V
0.8V
2
4
6
8
10
I_O – Ouput Current – A
Figure 18.
POWER DISSIPATION vs
LOAD CURRENT
3.0
f_SW = 350 kHz
2.5
V_O
3.3V
2.5V
1.8V
2.0
1.2V
0.8V
1.5
Others
1.0
0.5
0.8 V
0
0
2
4
6
8
10
I_O – Ouput Current – A
Figure 19.
POWER DISSIPATION vs
LOAD CURRENT
3.0
f_SW = 500 kHz
2.5
V_O
3.3V
2.5V
1.8V
2.0
1.2V
0.8V
1.5
18V
&
2.5 V
1.0
Others
0.5
0
0
2
4
6
8
10
I_O – Ouput Current – A
Figure 20.
POWER DISSIPATION vs
LOAD CURRENT
3.0
f
SW
=
750
kHz
2.5
V_O
3.3V
2.5V
1.8V
2.0
1.2V
0.8V
1.5
18V
&
2.5 V
1.2 V
1.0
0.8 V
&
0.5
3.3 V
0
0
2
4
6
8
10
I_O – Ouput Current – A
Figure 21.
POWER DISSIPATION vs
LOAD CURRENT
3.0
f
SW
=
1
MHz
2.5
V_O
3.3V
2.5V
1.8V
2.0
1.2V
All
0.8V
1.5
1.0
0.5
0
0
2
4
6
8
10
I_O – Ouput Current – A
Figure 22.
INPUT BIAS CURRENT vs
SWITCHING FREQUENCY
50
40
30
20
10
300
V_I = 5 V
400 500 600 700 800 900 1000
f_SW – Switching Frequency – kHz
Figure 23.
(1) The electrical characteristic data has been developed from actual products tested at 25°C. This data is considered typical for the
converter.
8
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