7

Rev:001 Date:11/20/03

SP6649 Ultra-low Quiescent Current, High Efficiency Boost DC-DC Regulator

© Copyright 2002 Sipex Corporation

4.900

4.920

4.940

4.960

4.980

5.000

5.020

5.040

5.060

5.080

5.100

0

100

200

300

400

500

Iload (mA)

Vi=4.2V

Vi=3.2V

Vi=2.6V

Vi=2.0V

Vi=1.6V

60

65

70

75

80

85

90

95

100

0.1

1.0

10.0

100.0

1000.0

Iload (mA)

Vi=4.2V

Vi=3.2V

Vi=2.6V

Vi=2.0V

Vi=1.6V

0

50

100

150

200

250

300

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

Vin (V)

0

50

100

150

200

250

300

350

400

450

500

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

Vin (V)

Figure 10. SP6649 5V Efficiency vs. Load Current

Figure 11. SP6649 5V Line/Load Rejection vs. Load

Current

Figure 12. SP6649 5V No Load Battery Current

Figure 13. SP6649 5V Maximum Resistive Load Current

in Startup

Figure 14. SP6649 5V Output Ripple, Vin=2.6V,

Iload=80mA

Figure 15. SP6649 5V Output Ripple, Vin=2.6V,

Iload=200mA

PERFORMANCE CHARACTERISTICS