DQ65033QKA04 datasheet(6/15 Pages) SYNQOR | Quarter-brick DC/DC Converter

6 page

Product # DQ65033QKA04

Phone 1-888-567-9596

Doc.# 005-2DQ653L Rev. B

11/11/04

Page 6

Technical S

echnical Specification

pecification

Input:

Outputs:

Current:

Package:

ackage:

35-75V

5.0V & 3.3V

40W

Quarter-brick

3.2

3.225

3.25

3.275

3.3

3.325

3.35

3.375

3.4

12/0

10.5/1

9/2

7.5/3

6/4

4.5/5

3/6

1.5/7

0/8

IOUT1 / IOUT2 (A)

4.8

4.85

4.9

4.95

5.05

5.1

5.15

5.2

3.3V_48Vin

5.0V_48Vin

3.225

3.25

3.275

3.3

3.325

3.35

3.375

9.1/0

7.5/1

6.1/2

4.5/3

3/4

1.5/5

0/6

IOUT1 / IOUT2 (A)

4.85

4.90

4.95

5.00

5.05

5.10

5.15

3.3V_48Vin

5.0V_48Vin

Figure 7: Load regulation vs. load current with power fixed at full load

(40W) 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 (30W) and load currents split as shown between 3.3V and 5.0V

outputs, at nominal input voltage.

Figure 9: Load regulation vs. output power from 10W load to 30W 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 3W load to full load

with 25% load on 3.3V output and 75% load on 5.0V output at nominal

input voltage.

3.25

3.275

3.3

3.325

3.35

Total Output Power (W)

4.9

4.95

5.05

5.1

3.3V_48Vin

5.0V_48Vin

Figure 11: Maximum output power-derating curves vs. ambient air tem-

perature for airflow rates of 0 to 400 LFM, air flowing from pin 3 to pin

1. Full load (12.1A) on 3.3V output and no load on 5.0V output.

3.2

3.225

3.25

3.275

3.3

3.325

3.35

3.375

3.4

Total Output Power (W)

4.8

4.85

4.9

4.95

5.05

5.1

5.15

5.2

3.3V_48Vin

5.0V_48Vin

Figure 12: Thermal plot of converter at 12.1 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 3 to pin 1 (nominal input voltage)

2540

5570

Ambient Air Temperature (oC)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

0 LFM (0 m/s)

Semiconductor junction temperature is

within 1

°C of surface temperature

Input voltage effects cross regu-

lation by maximum of 1mV

Input voltage effects cross regu-

lation by maximum of 1mV

Input voltage effects cross regu-

lation by maximum of 1mV

Input voltage effects cross regu-

lation by maximum of 1mV

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