5

Rev. 3/5/02,

*Patent Pending

SP6641A/6641B 500mA Alkaline DC/DC Boost Regulator in SOT-23

© Copyright 2002 Sipex Corporation

Figure 9. SP6641AEK-5.0 Line/Load Rejection Vs Load

Current

Figure 10. SP6641BEK-5.0 Line/Load Rejection Vs

Load Current

PERFORMANCE CHARACTERISTICS

Refer to the circuit in Figure 1, T

Figure 11. SP6641AEK-3.3 & SP6641AEK-5.0 No Load

Battery Current

Figure 12. SP6641BEK-3.3 & SP6641AEK-5.0 No Load

Battery Current

Figure 13. SP6641AEK-3.3 & SP6641AEK-5.0

Maximum Resistive Load Current in Startup

Figure 14. SP6641BEK-3.3 & SP6641BEK-5.0

Maximum Resistive Load Current in Startup

Iload (mA)

5.000

5.020

5.040

5.060

5.080

5.100

5.120

5.140

5.160

5.180

5.200

0

50

100

150

200

250

Vi=4.2V

Vi=3.6V

Vi=3.3V

Vi=2.0V

Vi=1.3V

Iload (mA)

4.900

4.920

4.940

4.960

4.980

5.000

5.020

5.040

5.060

5.080

5.100

0

200

400

600

800

Vi=4.2V

Vi=3.6V

Vi=3.3V

Vi=2.0V

Vi=1.3V

Vin (V)

0

50

100

150

200

250

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

SP6641AEK-5.0

SP6641AEK-3.3

Vin (V)

0

50

100

150

200

250

300

350

400

450

500

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

SP6641B-5.0

SP6641B-3.3

Vin (V)

0

50

100

150

200

250

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

SP6641AEK-3.3, 22

µH

SP6641AEK-3.3, 10

µH

SP6641AEK-5.0, 22

µH

SP6641AEK-5.0, 10

µH

Vin (V)

0

100

200

300

400

500

600

700

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

SP6641BEK-3.3, 22

µH

SP6641BEK-3.3, 10

µH

SP6641BEK-5.0, 22

µH

SP6641BEK-5.0, 10

µH