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Typical operating characteristics – Rainbow Electronics MAX8614B User Manual

Page 5

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MAX8614A/MAX8614B

Dual-Output (+ and -) DC-DC

Converters for CCD

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5

MAXIMUM OUTPUT CURRENT

vs. INPUT VOLTAGE

INPUT VOLTAGE (V)

MAXIMUM OUTPUT CURRENT (mA)

MAX8614A/B toc01

2.5

3.0

3.5

4.0

4.5

5.0

5.5

0

50

100

150

200

250

300

350

V

OUT

= 20V

V

OUT

= 15V

V

OUT

= 10V

MAXIMUM OUTPUT CURRENT

vs. INPUT VOLTAGE

INPUT VOLTAGE (V)

MAXIMUM OUTPUT CURRENT (mA) .

MAX8614A/B toc02

2.5

3.0

3.5

4.0

4.5

5.0

5.5

0

50

100

150

200

250

300

V

INV

= -10V

V

INV

= -7.5V

V

INV

= -5V

POSITIVE OUTPUT EFFICIENCY

vs. OUTPUT CURRENT

OUTPUT CURRENT (mA)

EFFICIENCY (%)

MAX8614A/B toc03

0.1

1

10

100

L = 2.2

µH, C = 2.2µF

0

10

20

30

40

50

60

70

80

90

100

V

CC

= 3V

V

CC

= 3.6V

V

CC

= 4.2V

V

CC

= 5V

POSITIVE OUTPUT EFFICIENCY

vs. OUTPUT CURRENT

OUTPUT CURRENT (mA)

EFFICIENCY (%)

MAX8614A/B toc04

0

10

20

30

40

50

60

70

80

90

100

0.1

1

10

100

L = 10

µH, C = 10µF

V

CC

= 3V

V

CC

= 3.6V

V

CC

= 4.2V

V

CC

= 5V

NEGATIVE OUTPUT EFFICIENCY

vs. OUTPUT CURRENT

OUTPUT CURRENT (mA)

EFFICIENCY (%)

MAX8614A/B toc05

0

10

20

30

40

50

60

70

80

90

100

0.1

1

10

100

L = 4.7

µH, C = 4.7µF

V

CC

= 3V

V

CC

= 3.6V

V

CC

= 4.2V

V

CC

= 5V

NEGATIVE OUTPUT EFFICIENCY

vs. OUTPUT CURRENT

OUTPUT CURRENT (mA)

EFFICIENCY (%)

MAX8614A/B toc06

0

10

20

30

40

50

60

70

80

90

100

0.1

1

10

100

L = 10

µH, C = 10µF

V

CC

= 3V

V

CC

= 3.6V

V

CC

= 4.2V

V

CC

= 5V

OUTPUT EFFICIENCY

vs. OUTPUT CURRENT

OUTPUT CURRENT (mA)

EFFICIENCY (%)

MAX8614A/B toc07

0

10

20

30

40

50

60

70

80

90

100

0.1

1

10

100

BOTH OUTPUTS LOADED EQUALLY
L1 = 2.2

µH, C1 = 2.2µF, L2 = 4.7µH, C2 = 4.7µF

V

CC

= 3V

V

CC

= 3.6V

V

CC

= 4.2V

V

CC

= 5V

OUTPUT EFFICIENCY

vs. OUTPUT CURRENT

OUTPUT CURRENT (mA)

EFFICIENCY (%)

MAX8614A/B toc08

0

10

20

30

40

50

60

70

80

90

100

0.1

1

10

100

1000

BOTH OUTPUTS LOADED EQUALLY
L1 = 10

µH, C1 = 10µF, L2 = 10µH, C2 = 10µF

V

CC

= 3V

V

CC

= 3.6V

V

CC

= 4.2V

V

CC

= 5V

Typical Operating Characteristics

(T

A

= +25°C, V

CC

= V

AVCC

= 3.6V, SEQ = GND, Figure 1, unless otherwise noted.)