www.austriamicrosystems.com/DC-DC_Step-Up/AS1302

Revision 1.03

5 - 18

AS1302

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

7 Typical Operating Characteristics

VBATT = 3.3V, VOUT = 5V, COUT = CBAT = 2.2µF, CFLY1 = CFLY2 =220nF, TAMB = +25ºC, unless otherwise specified.

Figure 3. Efficiency vs. Input Voltage; ILOAD = 1mA

Figure 4. Efficiency vs. Input Voltage; ILOAD = 10mA

0

10

20

30

40

50

60

70

80

90

100

2.6

3

3.4

3.8

4.2

4.6

5

5.4

Input Voltage (V)

1:2

mode

2:3

mode

1:1

mode

0

10

20

30

40

50

60

70

80

90

100

2.6

3

3.4

3.8

4.2

4.6

5

5.4

Input Voltage (V)

1:2

mode

2:3

mode

1:1

mode

Figure 5. Efficiency vs. Input Voltage; ILOAD = 20mA

Figure 6. Efficiency vs. Input Voltage; ILOAD = 30mA

0

10

20

30

40

50

60

70

80

90

100

2.6

3

3.4

3.8

4.2

4.6

5

5.4

Input Voltage (V)

1:2

mode

2:3

mode

1:1

mode

0

10

20

30

40

50

60

70

80

90

100

2.6

3

3.4

3.8

4.2

4.6

5

5.4

Input Voltage (V)

1:2

mode

2:3

mode

1:1

mode

Figure 7. Quiescent Current vs. Input Voltage

Figure 8. Quiescent Current vs. Temperature

50

75

100

125

150

175

200

225

250

275

300

2.4

2.9

3.4

3.9

4.4

4.9

5.4

Input Voltage (V)

50

75

100

125

150

175

200

225

250

275

300

-45 -30 -15

0

15

30

45

60

75

90

Temperature (°C)

Vi n=3.4V (1:2 Mode)

Vi n=4.5V (2:3 Mode)

Vi n=5.3V (1:1 Mode)