Performance Curves
Non-Isolated
3.0 - 3.6V
15A
SIP Converter
in
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 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).
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
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/
µ
s). Load cap: 10
µ
F, 100m
Ω
current (50-75-50% of Iout max; di/dt=0.1A/µs). Load cap: 10µF, 100mΩ
ESR tantalum and 1
µF ceramic. Ch 1: Vout (50mV/div), Ch 2: Iout (5A/div).
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/ s). Load cap: 470 F, 25m
ESR tantalum and 1 F ceramic. Ch 1: Vout (50mV/div), Ch 2: Iout (5A/div).
Figure 18: Output voltage response for 2.5V unit to step-change in load
current (50-75-50% of Iout max; di/dt=5A/ s). Load cap: 470 F, 25m
ESR tantalum and 1 F ceramic. Ch 1: Vout (50mV/div), Ch 2: Iout (5A/div).
µ
µ
Ω
µ
µ
Ω
µ
µ
Product # NQ03xxxVMA15 Phone 1-888-567-9596
Doc.# 005-2NV3xxE Rev. E 6/24/04 Page 9