SS6612 datasheet(5/16 Pages) SSC

部件名	SS6612

功能描述	High-Efficiency Synchronous Step-up DC/DC Converter with Selectable Current Limit

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制造商	SSC [Silicon Standard Corp.]

网页	http://www.siliconstandard.com

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Rev.2.02 12/06/2003

SS6612

TYPICAL PERFORMANCE CHARACTERISTICS

Input battery voltage (V)

Fig. 1

No-Load Battery Current vs. Input Battery

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

0

20

40

60

80

100

120

140

160

VOUT=5V (FB=GND)

VOUT=3.3V (FB=OUT)

Supply Voltage (V)

Fig. 2

Shutdown Current vs. Supply Voltage

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

0.0

0.1

0.2

0.3

0.4

0.5

Fig. 3

Start-Up Voltage vs. Output Current

0.01

0.1

1

10

100

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

VOUT=5V (FB=GND)

Output Current

(mA)

VOUT=3.3V (FB=OUT)

Fig. 4

Turning Point between CCM & DCM

Input Voltage (V)

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

0

50

100

150

200

250

300

350

400

VOUT=5.0V (FB=GND)

VOUT=3.3V (FB=OUT)

L=22

µH

CIN=100µF

COUT=100µF

Fig. 5

Efficiency vs. Output Current (ref. to Fig.35)

0.01

0.1

1

10

100

1000

0

10

20

30

40

50

60

70

80

90

100

VIN=3.6V

Output Current (mA)

VIN=2.4V

VIN=1.2V

CLSEL=OUT (ILIMIT =1A)

VOUT=5V (FB=GND)

Fig. 6

Ripple Voltage (ref. to Fig.35)

Output Current (mA)

0

50

100

150

200

250

300

350

400

450

500

550

600

650

0

20

40

60

80

100

120

140

160

180

200

220

VIN=2.4V

VIN=1.2V

VOUT=5.0V

L=22µH

CIN=47µF

COUT=47µF

VIN=3.6V

CLSEL=OUT (ILIMIT =1A)

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