MAX15059 datasheet(4/15 Pages) MAXIM

Part #	MAX15059

Description	76V, 300mW Boost Converter and Current Monitor for APD Bias Applications

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Manufacturer	MAXIM [Maxim Integrated Products]

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4 ______________________________________________________________________________________

76V, 300mW Boost Converter and Current

Monitor for APD Bias Applications

Typical Operating Characteristics

(VIN = 3.3V, VOUT = 70V, TA = +25°C, unless otherwise noted.)

EFFICIENCY vs. LOAD CURRENT

LOAD CURRENT (mA)

3.5

3.0

2.0 2.5

1.0 1.5

0.5

10

20

30

40

50

60

70

80

90

100

0

4.0

VOUT = 30V

VOUT = 70V

VOUT = 50V

VIN = 3.3V

EFFICIENCY vs. LOAD CURRENT

LOAD CURRENT (mA)

3.5

3.0

2.0 2.5

1.0 1.5

0.5

10

20

30

40

50

60

70

80

90

100

0

4.0

VOUT = 30V

VOUT = 70V

VOUT = 50V

VIN = 5V

MINIMUM STARTUP VOLTAGE

vs. LOAD CURRENT

LOAD CURRENT (mA)

3.5

3.0

2.0 2.5

1.0 1.5

0.5

2.56

2.57

2.58

2.59

2.60

2.61

2.62

2.63

2.64

2.65

2.55

0

4.0

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

0

SUPPLY VOLTAGE (V)

5.0

4.5

3.5 4.0

1.0 1.5 2.0 2.5 3.0

0.5

0

5.5

TA = +85°C

VFB = 1.4V

TA = -40°C

TA = +25°C

NO-LOAD SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

5.0

4.5

4.0

3.5

3.0

5

10

15

20

25

30

35

40

45

50

0

2.5

5.5

TA = -40°C

TA = +25°C

TA = +85°C

EXITING SHUTDOWN

MAX15059 toc06

SHDN

2V/div

INDUCTOR

CURRENT

500mA/div

VOUT

50V/div

1ms/div

ENTERING SHUTDOWN

MAX15059 toc07

SHDN

2V/div

INDUCTOR

CURRENT

500mA/div

VOUT

50V/div

4ms/div

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