ZXLD381
Typical Characteristics
ZXLD 381 IOUT(AVERAGE) vs VCC for L = 2.2uH to 47uH
ZXLD381 Efficiency vs VCC fo r L = 2.2uH to 47uH
100
100
90
80
90
80
2.2uH
2. 2 uH
70
60
70
60
3.3uH
4.7uH
3. 3 uH
4. 7 uH
6.8uH
10uH
6. 8 uH
10uH
50
40
30
20
10
50
40
30
15uH
22uH
47uH
15uH
22uH
47uH
20
10
0
0
0.8
1
1.2
1.4
1.6
1.8
2
0. 8
1
1.2
1.4
1.6
1. 8
2
VCC (V)
VCC (V)
ZXLD381 Operating Waveforms for L = 4.7uH, VCC = 1.5V
ZXLD381IIN vsVCC for L = 2.2uH to 47uH
350
300
250
200
150
100
50
2.2uH
3.3uH
4.7uH
6.8uH
10uH
15uH
22uH
47uH
0
0.8
1
1.2
1.4
1.6
1.8
2
Channel-1 (Upper): ILED @ 100mA/cm
Channel-2 (Lower): VOUT @ 1V/cm
Timebase: 500ns/cm
VCC (V)
ZXLD381 fOSC vs VCC for L= 4.7uH
450
400
350
300
250
200
150
100
50
0
0.8
1
1.2
1.4
1.6
1.8
2
V
CC (V)
Issue 1 - April 2008
© Zetex Semiconductors plc 2008
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