SC190DEVB datasheet(13/18 Pages) SEMTECH

13 / 18 page

 2005 Semtech Corp.

www.semtech.com

POWER MANAGEMENT

SC190

100

0.01

0.1

OUTPUT CURRENT (A)

Vin = 3.0V

Vin = 3.6V

Vin = 4.2V

100

0.01

0.1

OUTPUT CURRENT (A)

Vin = 3.0V

Vin = 3.6V

Vin = 4.2V

-0.2

-0.1

0.1

0.2

0.3

0.4

0.5

0.7

0.9

1.1

1.3

1.5

FREQUENCY (MHz)

VIN = 3.6V

VOUT = 1.0V

IOUT = 0.15A

SC190C Line Regulation (FELDO Bypassed)

SC190C Line Regulation (FELDO Active)

Efﬁciency vs Load Current

(FELDO Bypassed) - V

OUT = 1.8V

Efﬁciency vs Load Current

(FELDO Active) - V

OUT = 1.8V

Maximum Input Voltage vs Synchronization

Frequency - V

OUT = 1.0V

Output Voltage vs

Synchronization Frequency

Typical Characteristics (Cont.)

2.3

2.4

2.5

2.6

2.7

2.8

2.9

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

INPUT VOLTAGE (V)

VOUT = 2.8V

IOUT = 0.15A

VOUT = 2.5V

IOUT = 0.15A

0.5

1.5

2.5

3.5

4.5

5.5

0.7

0.8

0.9

1.1

1.2

1.3

1.4

1.5

FREQUENCY (MHz)

2.3

2.4

2.5

2.6

2.7

2.8

2.9

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

INPUT VOLTAGE (V)

VOUT = 2.8V

IOUT = 0.15A

VOUT = 2.5V

IOUT = 0.15A

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