Technical
Specification
IQ18xxxSKxxx
Family Figures (all output voltages)
120
100
80
60
40
20
0
Nominal Vout
Typical Current Limit Inception Point
Typical Output Voltage at Shutdown
Vin min
Vin nom
Vin max
0
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
Load Current (%)
Common Figure 1: Typical startup waveform. Input voltage pre-applied, ON/
OFF Pin on Ch 2.
Common Figure 2: Output voltage vs. load current showing typical current limit
curves and converter shutdown points.
10,000.0
100,000.0
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
5 V
7 V
12 V
15 V
1,000.0
100.0
10.0
10,000.0
1,000.0
100.0
1.0
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9
10
Increase in Vout (%)
Increase in Vout (%)
Common Figure 3: Trim graph for trim-up 1.2 to 3.3V outputs.
Common Figure 4: Trim graph for trim-up 5 to 15V outputs.
10,000.0
All voltages
1,000.0
100.0
10.0
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20
Decrease in Vout (%)
Common Figure 5: Trim graph for trim down.
Product # IQ18xxxSKxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005462 Rev. C
05/27/10
Page 3