
AUG 25, 2006 revised to MAR 19, 2007
Page 53 of 70
www.power-one.com
SQ24 Series DC-DC Converter Data Sheet
18-36 VDC Input; Standard Outputs from 1-12 VDC
SQ24T/S15015 (1.5 Volts Out)
Load Current [Adc]
0246
8
10
12
14
16
E
fficiency
0.65
0.70
0.75
0.80
0.85
0.90
0.95
36 V
24 V
18 V
Fig. 1.5V.5: Efficiency vs. load current and input voltage for
SQ24T/S15015 converter mounted vertically with air flowing
from pin 3 to pin 1 at a rate of 300 LFM (1.5 m/s) and Ta =
25
°C.
Load Current [Adc]
0246
8
10
12
14
16
Po
w
er
Di
ss
ip
ati
o
n
[
W
]
0.00
1.00
2.00
3.00
4.00
5.00
6.00
36 V
24 V
18 V
Fig. 1.5V.7: Power dissipation vs. load current and input
voltage for SQ24T/S15015 converter mounted vertically with
air flowing from pin 3 to pin 1 at a rate of 300 LFM (1.5 m/s)
and Ta = 25
°C.
Load Current [Adc]
0246
8
10
12
14
16
E
fficiency
0.65
0.70
0.75
0.80
0.85
0.90
0.95
70 C
55 C
40 C
Fig. 1.5V.6: Efficiency vs. load current and ambient
temperature for SQ24T/S15015 converter mounted vertically
with
Vin = 24V and air flowing from pin 3 to pin 1 at a rate of
200 LFM (1.0 m/s).
Load Current [Adc]
0246
8
10
12
14
16
Po
w
er
D
issipat
ion
[
W
]
0.00
1.00
2.00
3.00
4.00
5.00
6.00
70 C
55 C
40 C
Fig. 1.5V.8: Power dissipation vs. load current and ambient
temperature for SQ24T/S15015 converter mounted vertically
with Vin = 24V and air flowing from pin 3 to pin 1 at a rate of
200 LFM (1.0 m/s).