Typical operating characteristics – Rainbow Electronics MAX15028 User Manual

Page 4

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MAX15028 BIAS CURRENT (I

BIAS

)

vs. BIAS VOLTAGE (V

BIAS

)

MAX15027 toc04

BIAS VOLTAGE (V)

BIAS CURRENT (

µ

A)

2

1

4

5

3

10

30

40

20

50

60

0

0

6

I

OUT

= 0

MAX15028 BIAS CURRENT (I

BIAS

)

vs. OUTPUT CURRENT

MAX15027 toc05

OUTPUT CURRENT (mA)

BIAS CURRENT (

µ

A)

700

600

300

800

200

500

100

900

400

46

50

51

47

52

48

53

49

54

55

45

0

1000

V

BIAS

= 3.3V

V

BIAS

= 5.5V

GROUND CURRENT

vs. OUTPUT CURRENT

MAX15027 toc06

LOAD CURRENT (A)

GROUND CURRENT (mA)

0.7

0.6

0.3

0.8

0.2

0.5

0.1

0.9

0.4

0.33

0.31

0.34

0.32

0.35

0.30

0

1.0

V

BIAS

= 3.3V

MAX15027/MAX15028

1.425V to 3.6V Input, 1A Low-Dropout
Regulators with BIAS Input

4

_______________________________________________________________________________________

Typical Operating Characteristics

(Circuit of Figure 1, V

IN

= 1.8V, V

OUT

= 1.5V, I

OUT

= 1A, T

A

= +25°C, unless otherwise noted.)

MAX15028

OUTPUT VOLTAGE vs. INPUT VOLTAGE

MAX15027 toc01

INPUT VOLTAGE (V)

OUTPUT VOLTAGE (V)

3.5

3.0

0.5

1.0

1.5

2.0

2.5

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

0

0

4.0

I

OUT

= 0

V

BIAS

= 3.3V

MAX15028

OUTPUT VOLTAGE vs. OUTPUT CURRENT

MAX15027 toc02

OUTPUT CURRENT (mA)

OUTPUT VOLTAGE (V)

800 900

200

400

600 700

100

300

500

1.485

1.490

1.495

1.500

1.505

1.510

1.515

1.520

1.480

0

1000

V

BIAS

= 3.3V

INPUT CURRENT (I

IN

)

vs. INPUT VOLTAGE (V

IN

)

MAX15027 toc03

INPUT VOLTAGE (V)

INTPUT CURRENT (mA)

3.0

3.5

1.0

1.5

2.5

0.5

2.0

0.1

0.2

0.3

0.4

0

0

4.0

V

BIAS

= 3.3V

MAX15028 DROPOUT VOLTAGE

vs. OUTPUT CURRENT

MAX15027 toc07

OUTPUT CURRENT (mA)

DROPOUT VOLTAGE (mV)

700

600

300

800

200

500

100

900

400

20

100

120

40

140

60

160

80

180

200

0

0

1000

V

BIAS

= 3.3V

V

IN

= 1.4V

MAX15028 DROPOUT VOLTAGE

vs. OUTPUT CURRENT

MAX15027 toc07

OUTPUT CURRENT (mA)

DROPOUT VOLTAGE (mV)

700

600

300

800

200

500

100

900

400

20

100

120

40

140

60

160

80

180

200

0

0

1000

V

BIAS

= 3.3V

V

IN

= 1.4V

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