SP6655ER-L datasheet(4/16 Pages) SIPEX

Part #	SP6655ER-L

Description	High Efficiency 400mA Synchronous Buck Regulator

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Manufacturer	SIPEX [Sipex Corporation]

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Date: 09/27/05

SP6655 High Efficiency 400mA Synchronous Buck Regulator

60

65

70

75

80

85

90

95

100

0.1

1.0

10.0

100.0

1000.0

ILoad (mA)

Vi=3.6V

Vi=3.9V

Vi=4.2V

Vi=5.0V

3.15

3.20

3.25

3.30

3.35

3.40

3.45

0

100

200

300

400

500

ILoad (mA)

Vi=3.6V

Vi=3.9V

Vi=4.2V

Vi=5.0V

0

100

200

300

400

500

3.0

3.3

3.6

3.9

4.2

Vin (V)

Tamb = 85°C

Tamb = 25°C

Tamb = -40°C

1.45

1.47

1.49

1.51

1.53

1.55

0

100

200

300

400

500

ILoad (mA)

Vi=3.6V

Vi=3.9V

Vi=4.2V

Vi=5.0V

0

10

20

30

40

50

3.0

3.3

3.6

3.9

4.2

Vin (V)

Tamb = 85°C

Tamb = 25°C

Tamb = -40°C

Efficiency vs Load, V

OUT = 1.5V

Line/Load Rejection, V

OUT = 3.3V

Line/Load Rejection, V

OUT = 1.5V

No Load Battery Current, V

OUT=3.3V

No Load Battery Current, V

OUT=1.5V

TYPICAL PERFORMANCE CHARACTERISTICS

Refer to the typical application schematic, TAMB= +27°C

75

80

85

90

95

100

0.1

1.0

10.0

100.0

1000.0

ILoad (mA)

Efficiency vs. Load, V

OUT=3.3V, VIN=3.6V

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