AS1326
Data Sheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s
Figure 9. Startup Voltage vs. Output Current
2.5
Figure 10. Peak Inductor Current vs. V
ISET
1.6
.
2
1.4
1.2
1
0.8
0.6
0.4
0.2
0
1.5
+25°C
1
+85°C
-40°C
0.5
1
10
100
1000
Peak Inductor Current (A)
Startup Voltage (V)
.
0
0.2
0.4
0.6
0.8
1
1.2
1.4
Output Current (mA)
V
ISET
(V)
Figure 11. Light-Load Switching Waveform
I
OUT
= 10mA, CLK/SEL = OUT
Figure 12. Heavy-Load Switching Waveform
I
OUT
= 500mA
5V/Div
LX pin
200mA/Div
LX pin
Output
Ripple
50mV/Div
Output
Ripple
500ns/Div
500ns/Div
Figure 13. Line-Transient Response. V
IN
=2.4 to 1.4V,
I
OUT
= 200mA
Figure 14. Noise Spectrum
CLK/SEL = OUT
4
3.5
3
2.5
2
1.5
1
0.5
0
0.2
1
10
20
1V/Div
Vin
500ns/Div
50mV/Div
VOUT
Noise (mV
RMS
)
.
Frequency (MHz)
www.austriamicrosystems.com
Revision 1.02
50mV/Div
200mA/Div
Inductor
Current
Inductor
Current
5V/Div
7 - 18
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