Input:
Outputs:
Current:
Package:
35-75V
5.0V & 3.3V
60W
Quarter-brick
Technical Specification
3.4
3.375
3.35
3.325
3.3
5.2
3.4
5.2
3.375
3.35
3.325
3.3
5.15
5.1
5.15
Input voltage has virtually no
effect on cross regulation
Input voltage has virtually no
effect on cross regulation
5.1
5.05
5
5.05
5
3.275
3.25
3.225
3.2
4.95
4.9
3.275
3.25
3.225
3.2
4.95
4.9
4.85
4.8
4.85
4.8
3.3V_48Vin
5.0V_48Vin
3.3V_48Vin
5.0V_48Vin
13.6/0 12.1/1 10.6/2 9.1/3 7.6/4 6.1/5 4.5/6 3.0/7 1.5/8
0/9
IOUT1 / IOUT2 (A)
IOUT1 / IOUT2 (A)
Figure 7: Load regulation vs. load current with power fixed at full load
(60W) and load currents split as shown between 3.3V and 5.0V outputs,
at nominal input voltage.
Figure 8: Load regulation vs. load current with power fixed at 75%
load (45W) and load currents split as shown between 3.3V and 5.0V
outputs, at nominal input voltage.
3.4
3.375
3.35
3.325
3.3
5.2
3.4
3.375
3.35
3.325
3.3
5.2
5.15
5.1
5.15
5.1
Input voltage has virtually no
effect on cross regulation
Input voltage has virtually no
effect on cross regulation
5.05
5
5.05
5
3.275
3.25
3.225
3.2
4.95
4.9
3.275
3.25
3.225
3.2
4.95
4.9
3.3V_48Vin
5.0V_48Vin
4.85
4.8
3.3V_48Vin
5.0V_48Vin
4.85
4.8
10
20
30
40
50
60
10
20
30
40
50
60
Total Output Power (W)
Total Output Power (W)
Figure 9: Load regulation vs. output power from 10W load to full load
with 75% load on 3.3V output and 25% load on 5.0V output at nominal
input voltage.
Figure 10: . Load regulation vs. output power from 10W load to full
load with 25% load on 3.3V output and 75% load on 5.0V output at
nominal input voltage.
20
18
16
14
12
10
8
400 LFM
6
300 LFM
4
2
0
200 LFM
100 LFM
0 LFM
Semiconductor junction temperature is
within 1°C of surface temperature
0
25
40
55
70
85
Ambient Air Temperature (oC)
Figure 11: Maximum output power-derating curves vs. ambient air tem-
perature for airflow rates of 0 to 400 LFM, air flowing from pin 1 to pin
3. Full load (18A) on 3.3V output and no load on 5.0V output.
Figure 12: Thermal plot of converter at 18 amp load on 3.3V ouput and
no load on 5.0V output with 55 C air flowing at 200 LFM. Air flow
across the converter is from pin 1 to pin 3 (nominal input voltage)
°
Product # DQ65033QMA06
Phone 1-888-567-9596
Doc.# 005-2DQ653E Rev. H
7/7/04
Page 6
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