Performance Curves
Non-Isolated
3.0 - 3.6V
15A
SIP Converter
in
100
95
90
85
80
75
70
65
94
93
92
91
90
89
88
87
2.5 Vo
1.8 Vo
1.5 Vo
1.2 Vo
0.9 Vo
25 C
40 C
55 C
86
0
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
100
200
300
400
500
Load Current (A)
Air Flow (LFM)
Figure 1: Efficiency at nominal output voltage vs. load current for all
Figure 2: Efficiency at 1.5Vout and 60% rated power vs. airflow rate
modules at 25
°
C and nominal input voltage.
for ambient air temperatures of 25
voltage).
°C, 40
°
C, and 55
°
C (nominal input
2.75
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
0.00
2.5
2.0
1.5
1.0
0.5
0.0
2.5 Vo
1.8 Vo
1.5 Vo
1.2 Vo
0.9 Vo
25 C
40 C
55 C
0
100
200
300
400
500
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
Air Flow (LFM)
Load Current (A)
Figure 3: Power dissipation at nominal output voltage vs. load current
Figure 4: Power dissipation at 1.5Vout and 60% rated power vs. air-
for all modules at 25
°
C and nominal input voltage.
flow rate for ambient air temperatures of 25
nal input voltage).
°C, 40°C, and 55°C (nomi-
16
14
12
10
8
6
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
50 LFM (0.25 m/s)
4
2
0
Semiconductor junction temperature is
within 1 C of surface temperature
°
0
25
40
55
70
85
Ambient Air Temperature (oC)
Figure 5: Maximum output power derating curves vs. ambient air tem-
perature for 0.9Vout unit. Airflow rates of 50 LFM - 400 LFM with air
flowing across the converter from pin 11 to pin 1 (Vin nom, vert mount).
Figure 6: Thermal plot of 0.9V converter at 15 amp load current with
55 C air flowing at the rate of 200 LFM. Air is flowing across the con-
verter sideways from pin 11 to pin 1 (Vin nom, vert mount).
°
Product # NQ03xxxVMA15
Phone 1-888-567-9596
Doc.# 005-2NV3xxE Rev. E 6/24/04
Page 7
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