PTD08A020W_10 Datasheet, PDF (8/15 Pages) Texas Instruments – 20-A, 4.75-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT, DIGITAL POWERTRAIN™ MODULE

PTD08A020W
SLTS286F – MAY 2007 – REVISED FEBRUARY 2010
TYPICAL CHARACTERISTICS^{(1) (2)}
CHARACTERISTIC DATA (V_I = 5 V)
EFFICIENCY vs
LOAD CURRENT
100
3.3 V
EFFICIENCY vs
LOAD CURRENT
100
3.3 V
90
90
80
1.8 V 1.2 V
0.8 V
70
2.5 V
f_SW = 350 kHz
V_O (V)
3.3V
60
2.5V
1.8V
1.2V
0.8V
50
0
4
8
12
16
20
I_O – Output Current – A
Figure 10.
80
1.8 V 1.2 V ^{0.8 V}
70
2.5 V
f_SW = 500 kHz
V_O (V)
3.3V
60
2.5V
1.8V
1.2V
0.8V
50
0
4
8
12
16
20
I_O – Output Current – A
Figure 11.
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POWER DISSIPATION
vs
LOAD CURRENT
6
f_SW = 350 kHz
5
V_O (V)
3.3V
2.5V
4
1.8V
1.2V
0.8V
3
3.3 V
1.8 V
2.5 V
1.2 V
2
0.8 V
1
0
0
4
8
12
16
20
I_O – Output Current – A
Figure 12.
POWER DISSIPATION vs
LOAD CURRENT
6
f_SW = 500 kHz
5
V_O (V)
3.3V
2.5V
4
1.8V
1.2V
0.8V
3
3.3 V
2.5 V
1.8 V
1.2 V
0.8 V
2
1
0
0
4
8
12
16
20
I_O – Output Current – A
Figure 13.
INPUT BIAS CURRENT vs
SWITCHING FREQUENCY
35
30
25
20
15
10
300 325 350 375 400 425 450 475 500
f_SW – Switching Frequency – kHz
Figure 14.
AMBIENT TEMPERATURE vs
LOAD CURRENT
90
400
80
70
60
200
50
V_O = 1.2 V
40 ^fSW ^{= 350 kHz}
400 LFM
200 LFM
30
100 LFM
Natural Convection
100
Natural
Convection
20
0
4
8
12
16
20
I_O – Output Current – A
Figure 15. Safe Operating Area
(1) The electrical characteristic data has been developed from actual products tested at 25°C. This data is considered typical for the
converter. Applies to Figure 10 thru Figure 14.
(2) The temperature derating curves represent the conditions at which internal components are at or below the manufacturer's maximum
operating temperatures. Derating limits apply to modules soldered directly to a 100 mm x 100 mm double-sided PCB with 2 oz. copper.
Please refer to the mechanical specification for more information. Applies to Figure 15 thru Figure 18.
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