© 2000 SEMTECH CORP.

652 MITCHELL ROAD NEWBURY PARK CA 91320

60mA PROGRAMMABLE FIXED

FREQUENCY CHARGE PUMP DOUBLER

SC1464

PRELIMINARY - August 11, 2000

5

IinvsVin(260kHz)

000.0E+0

20.0E-3

40.0E-3

60.0E-3

80.0E-3

100.0E-3

120.0E-3

140.0E-3

2.45

2.65

2.85

3.05

3.25

3.45

3.65

Vin(V)

20ma

40ma

60ma

IinvsIo(260kHz)

000.0E+0

20.0E-3

40.0E-3

60.0E-3

80.0E-3

100.0E-3

120.0E-3

140.0E-3

1.E-02

2.E-02

3.E-02

4.E-02

5.E-02

6.E-02

7.E-02

Io(A)

Vin=2.5

Vin=3

Vin=3.5

VovsIo(260kHz)

3.000

3.500

4.000

4.500

5.000

5.500

6.000

6.500

7.000

7.500

2.E-02 3.E-02 3.E-02 4.E-02 4.E-02 5.E-02 5.E-02 6.E-02 6.E-02

Io(A)

Vin=2.5

Vin=3.0

Vin=3.5

Eff vsIo(260kHz)

92.00%

92.50%

93.00%

93.50%

94.00%

94.50%

95.00%

95.50%

10.0E-3

20.0E-3

30.0E-3

40.0E-3

50.0E-3

60.0E-3

70.0E-3

Io(A)

Vin=2.5

Vin=3.0

Vin=3.5

Eff vsVin(260kHz)

90.00%

92.00%

94.00%

96.00%

2.50

2.70

2.90

3.10

3.30

3.50

Vin(V)

60ma

Eff vsVo(260kHz)

90.00%

92.00%

94.00%

96.00%

4.50

5.00

5.50

6.00

6.50

7.00

Vo(V)

20ma

40ma

60ma