Technical Specification
100
95
14
12
Input:
Output:
Current:
Part no.:
18-36 V
7.0 V
17 A
IQ24070QTC17
Power Dissipation (W)
90
10
8
6
4
2
0
18 Vin
24 Vin
36 Vin
0
1
2
3
4
5
6
7
8
9
10
11 12
13 14
15 16
17
Efficiency (%)
85
80
75
70
65
60
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17
18 Vin
24 Vin
36 Vin
Load Current (A)
Load Current (A)
Figure 1:
Efficiency at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25
°
C.
Figure 2:
Power dissipation at nominal output voltage vs. load current
for minimum, nominal, and maximum input voltage at 25
°
C.
18
16
14
12
18
16
14
12
Iout (A)
10
8
6
400 LFM (2.0 m/s)
4
2
0
0
25
40
55
70
85
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
Iout (A)
10
8
6
400 LFM (2.0 m/s)
4
2
0
0
25
40
55
70
85
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3:
Encased converter (without heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 4:
Encased converter (with 1/4” heatsink) max. output power derating vs.
ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air flows
across the converter from pin 3 to pin 1 (nominal input voltage).
Figure 5:
Output voltage response to step-change in load current (50%-75%-
50% of Iout(max); dI/dt = 0.1 A/µs). Load cap:
1
µF ceramic and 15 µF tantalum
capacitors. Ch 1: Vout (
500 m
V/div), Ch 2: Iout (5 A/div).
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Figure 6:
Output voltage response to step-change in input voltage
(250 V/ms).
Load cap: 100 µF, electrolytic output capacitance.
Ch 1: Vout
(500 mV/div), Ch 2: Vin (10 V/div).
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 13
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