PTD08A020W_10 Datasheet, PDF (6/15 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 = 12 V)
EFFICIENCY vs
LOAD CURRENT
EFFICIENCY vs
LOAD CURRENT
100
3.3 V
90
100
3.3 V
90
80
70
0.8 V
1.2 V
60
1.8 V
2.5 V
f_SW = 350 kHz
50
V_O (V)
3.3V
2.5V
40
1.8V
1.2V
0.8V
30
0
4
8
12
16
20
I_O – Output Current – A
Figure 1.
80
70
0.8 V
1.2 V
60
1.8 V
f_SW = 500 kHz
2.5 V
50
V_O (V)
3.3V
2.5V
40
1.8V
1.2V
0.8V
30
0
4
8
12
16
20
I_O – Output Current – A
Figure 2.
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POWER DISSIPATION vs
LOAD CURRENT
6
1.8 V
5
4
3.3 V
3
1.2 V
2.5 V
2
1
0.8 V
f_SW = 350 kHz
V_O (V)
3.3V
2.5V
1.8V
1.2V
0.8V
0
0
4
8
12
16
20
I_O – Output Current – A
Figure 3.
POWER DISSIPATION vs
LOAD CURRENT
7
3.3 V
6
1.2 V
5
1.8 V
4
1.2 V
3
f_SW = 500 kHz
2
V_O (V)
3.3V
2.5V
1
0.8 V
1.8V
1.2V
0.8V
0
0
4
8
12
16
20
I_O – Output Current – A
Figure 4.
INPUT BIAS CURRENT vs
SWITCHING FREQUENCY
100
90
80
70
60
50
40
30
300 325 350 375 400 425 450 475 500
f_SW – Switching Frequency – kHz
Figure 5.
AMBIENT TEMPERATURE vs
LOAD CURRENT
90
400
80
70
60
200
100
50
V_O = 1.2 V
40 ^fSW ^{= 350 kHz}
400 LFM
200 LFM
30
100 LFM
Natural Convection
Natural
Convection
20
0
4
8
12
16
20
I_O – Output Current – A
Figure 6. 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 1 thru Figure 5.
(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 6 thru Figure 9.
6
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