AS1341 austriamicrosystems AG, AS1341 Datasheet - Page 6

• Manufacturer Part Number: AS1341
• Description: Step-Down Converter
• Manufacturer: austriamicrosystems AG

www.datasheet4u.com
AS1341
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 11. Output Voltage vs. Input Voltage;
Figure 13. Switching Freqency vs. Output Current;
www.austriamicrosystems.com
Figure 9. Efficiency vs. Input Voltage;
3.35
3.25
100
3.4
3.3
3.2
250
200
150
100
95
90
85
80
75
70
50
0
5
4
0
Circuit 1
V
V
OUT
IN
6
100
ILIMIT = low
= 12V, V
8
= 3.3V
8
Ci r cui t 1: VOUT=3.3V, IOUT=500mA
Ci r cui t 1: VOUT=5V, IOUT=500mA
Ci r cui t 3: VOUT=3.3V, IOUT=250mA
Ci r cui t 3: VOUT=5V, IOUT=250mA
or
Output Current (mA)
200
Input Voltage (V)
Input Voltage (V)
Circuit 3
10
11
OUT
300
12
= 5V, L = 10µH
ILIMIT = high
14
14
400
16
17
500
IOUT = 1mA
IOUT = 100mA
IOUT = 300mA
IOUT = 500mA
18
600
20
20
Revision 1.00
Figure 14. Switching Freqency vs. Output Current;
Figure 10. Output Voltage vs. Input Voltage;
Figure 12. Peak Switch Current vs. Input Voltage;
5.15
5.05
4.95
4.85
250
200
150
100
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
5.1
4.9
50
1
0
5
0
5
5
0
V
V
V
IN
OUT
OUT
100
= 12V, V
ILIMIT = low
8
8
= 3.3V
= 5V
Output Current (mA)
200
Input Voltage (V)
Input Voltage (V)
OUT
11
11
300
= 3.3V, L = 10µH
ILIMIT = high
14
14
400
ILIMIT = high
L=10µH
ILIMIT = high
L=39µH
ILIMIT = low
L=10µH
ILIMIT = low
L=39µH
17
17
500
IOUT = 1mA
IOUT = 100mA
IOUT = 300mA
IOUT = 500mA
IOUT = 600mA
600
20
20
6 - 16