www.ams.com/DC-DC_Step-Up/AS1341

Revision 1.09

6 - 18

AS1341

Datasheet - 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. Efficiency vs. Input Voltage

Figure 10. Output Voltage vs. Input Voltage

70

75

80

85

90

95

100

5

8

11

14

17

20

Input Voltage (V)

VOUT=3.3V, IOUT=500mA

VOUT=5V, IOUT=500mA

VOUT=3.3V, IOUT=250mA

VOUT=5V, IOUT=250mA

4.85

4.9

4.95

5

5.05

5.1

5.15

5

8

11

14

17

20

Input Voltage (V)

IOUT =1mA

IOUT =100mA

IOUT =300mA

IOUT =500mA

IOUT =600mA

Figure 11. Output Voltage vs. Input Voltage;

Figure 12. Peak Switch Current vs. Input Voltage;

3.2

3.25

3.3

3.35

3.4

4

6

8

10

12

14

16

18

20

Input Voltage (V)

IOUT =1mA

IOUT =100mA

IOUT =300mA

IOUT =500mA

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

5

8

11

14

17

20

Input Voltage (V)

ILIMIT = high

L=10µH

ILIMIT = high

L=39µH

ILIMIT = low

L=10µH

ILIMIT = low

L=39µH

Figure 13. Switching Frequency vs. Output Current;

Figure 14. Switching Frequency vs. Output Current;

0

50

100

150

200

250

0

100

200

300

400

500

600

Output Current (mA)

ILIMIT = high

ILIMIT = low

0

50

100

150

200

250

0

100

200

300

400

500

600

Output Current (mA)

ILIMIT = high

ILIMIT = low