PTD08A020W_08 Datasheet, PDF (8/14 Pages) Texas Instruments – 20-A, 4.75-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT, DIGITAL POWERTRAIN™ MODULE

PTD08A020W
SLTS286D – MAY 2007 – REVISED AUGUST 2008.......................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS⁽¹⁾⁽²⁾
CHARACTERISTIC DATA (V_I = 5 V)
100
90
80
70
60
50
0
EFFICIENCY
vs
LOAD CURRENT
3.3 V
1.8 V
2.5 V
1.2 V
0.8 V
f_SW = 350 kHz
V_O (V)
3.3V
2.5V
1.8V
1.2V
0.8V
4
8
12
16
20
I_O – Output Current – A
Figure 10.
100
90
80
70
60
50
0
EFFICIENCY
vs
LOAD CURRENT
3.3 V
1.8 V
2.5 V
1.2 V ^{0.8 V}
f_SW = 500 kHz
V_O (V)
3.3V
2.5V
1.8V
1.2V
0.8V
4
8
12
16
20
I_O – Output Current – A
Figure 11.
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
INPUT BIAS CURRENT
vs
SWITCHING FREQUENCY
35
30
25
20
15
0
0
4
8
12
16
20
I_O – Output Current – A
Figure 13.
10
300 325 350 375 400 425 450 475 500
f_SW – Switching Frequency – kHz
Figure 14.
(1) The electrical characteristic data has been developed from actual products tested at 25C. 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.
For surface mount packages (AS and AZ suffix), multiple vias must be utilized. Please refer to the mechanical specification for more
information. Applies to Figure 15 thru Figure 18.
8
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