NQ03009VMA15NRS Datasheet, PDF (9/17 Pages) SynQor Worldwide Headquarters – 15A Non-Isolated DC/DC Converter in SIP configuration

Performance Curves
Non-Isolated
SIP Converter
3.0 - 3.6Vin 15A
16
14
12
10
8
6
400 LFM (2.0 m/s)
4
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
2
100 LFM (0.5 m/s)
50 LFM (0.25 m/s)
0
0
25
40
55
70
85
Ambient Air Temperature (^oC)
Figure 13: Maximum output power derating curves vs. ambient air tem-
perature for 2.5Vout unit. Airflow rates of 50 LFM - 400 LFM with air
flowing across the converter from pin 11 to pin 1 (Vin nom, vert mount).
Semiconductor junction temperature is
within 1°C of surface temperature
Figure 14: Thermal plot of 2.5V 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).
Figure 15: Output voltage response for 0.9V unit to step-change in load
current (50-75-50% of Iout max; di/dt=0.1A/µs). Load cap: 10µF, 100mΩ
ESR tantalum and 1µF ceramic. Ch 1: Vout (50mV/div), Ch 2: Iout (5A/div).
Figure 16: Output voltage response for 2.5V unit to step-change in load
current (50-75-50% of Iout max; di/dt=0.1A/µs). Load cap: 10µF, 100mΩ
ESR tantalum and 1µF ceramic. Ch 1: Vout (50mV/div), Ch 2: Iout (5A/div).
Figure 17: Output voltage response for 0.9V unit to step-change in load
current (50-75-50% of Iout max; di/dt=5A/µs). Load cap: 470µF, 25mΩ
ESR tantalum and 1µF ceramic. Ch 1: Vout (50mV/div), Ch 2: Iout (5A/div).
Product # NQ03xxxVMA15
Phone [phone]
Figure 18: Output voltage response for 2.5V unit to step-change in load
current (50-75-50% of Iout max; di/dt=5A/µs). Load cap: 470µF, 25mΩ
ESR tantalum and 1µF ceramic. Ch 1: Vout (50mV/div), Ch 2: Iout (5A/div).
Doc.# 005-2NV3xxE Rev. E
6/24/04
Page 9