PTD08A010W_10 Datasheet, PDF (6/15 Pages) Texas Instruments – DIGITAL POWERTRAIN™ MODULE

PTD08A010W
SLTS285E – MAY 2007 – REVISED FEBRUARY 2010
EFFICIENCY vs
LOAD CURRENT
TYPICAL CHARACTERISTICS (V_I = 12 V) ⁽¹⁾
EFFICIENCY vs
LOAD CURRENT
100
100
100
3.3 V
2.5 V
3.3 V
2.5 V
90
90
90
80
80
80
1.8 V
70
1.2 V
60
50
0.8 V
40
f_SW = 350 kHz
V_O
3.3V
2.5V
1.8V
1.2V
0.8V
30
0
2
4
6
8
10
I_O – Ouput Current – A
70
1.8 V
60
1.2 V
50
40
0.8 V
f
SW
=
500
kHz
V_O
3.3V
2.5V
1.8V
1.2V
0.8V
30
0
2
4
6
8
10
I_O – Ouput Current – A
70
60
50
40
30
0
Figure 1.
Figure 2.
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EFFICIENCY vs
LOAD CURRENT
3.3 V
2.5 V
1.2 V
0.8 V
1.8 V
f_SW = 750 kHz
V_O
3.3V
2.5V
1.8V
1.2V
0.8V
2
4
6
8
10
I_O – Ouput Current – A
Figure 3.
100
90
80
70
60
50
40
30
0
EFFICIENCY vs
LOAD CURRENT
3.3 V
2.5 V
1.8 V
1.2 V
0.8 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 4.
POWER DISSIPATION vs
LOAD CURRENT
4
f_SW = 350 kHz
V_O
3.3V
3
2.5V
1.8V
1.2V
0.8V
2.5 V
3.3 V
2
1.8 V
1.2 V
1
0.8 V
0
0
2
4
6
8
10
I_O – Ouput Current – A
Figure 5.
POWER DISSIPATION vs
LOAD CURRENT
4
f_SW = 500 kHz
V_O
3.3V
3
2.5V
1.8V
1.2V
0.8V
2
1.8 V
2.5 V
3.3 V
1.2 V
0.8 V
1
0
0
2
4
6
8
10
I_O – Ouput Current – A
Figure 6.
POWER DISSIPATION vs
LOAD CURRENT
4
f
SW
=
750
kHz
V_O
3.3V
3
2.5V
1.8V
1.2V
0.8V 1.8 V
2.5 V
3.3 V
2
1.2 V
0.8 V
1
0
0
2
4
6
8
10
I_O – Ouput Current – A
Figure 7.
POWER DISSIPATION vs
LOAD CURRENT
4
f_SW = 1 MHz
V_O
3.3V
2.5 V
3
2.5V
1.8V ^{1.8 V}
1.2V
0.8V
2
3.3 V
1.2 V
1
0.8 V
0
0
2
4
6
8
10
I_O – Ouput Current – A
Figure 8.
INPUT BIAS CURRENT vs
SWITCHING FREQUENCY
90
80
60
40
20
300
V_I = 12 V
400 500 600 700 800 900 1000
f_SW – Switching Frequency – kHz
Figure 9.
(1) The electrical characteristic data has been developed from actual products tested at 25°C. This data is considered typical for the
converter.
6
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