MAX5038AEAI15 datasheet(5/26 Pages) MAXIM

Part #	MAX5038AEAI15

Description	Dual-Phase, Parallelable, Average-Current-Mode Controllers

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Manufacturer	MAXIM [Maxim Integrated Products]

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Dual-Phase, Parallelable, Average-Current-Mode

Controllers

_______________________________________________________________________________________

5

EFFICIENCY vs. OUTPUT CURRENT AND

INTERNAL OSCILLATOR FREQUENCY

IOUT (A)

48

44

40

36

32

28

24

20

16

12

8

4

50

60

70

80

90

100

40

052

f = 500kHz

f = 250kHz

VIN = +5V

VOUT = +1.8V

EFFICIENCY vs. OUTPUT CURRENT

AND INPUT VOLTAGE

IOUT (A)

48

44

40

36

32

28

24

20

16

12

8

4

50

40

30

20

10

60

70

80

90

100

0

052

VIN = +12V

VIN = +5V

VOUT = +1.8V

fSW = 250kHz

EFFICIENCY vs. OUTPUT CURRENT

IOUT (A)

48

44

40

36

32

28

24

20

16

12

8

4

50

40

30

20

10

60

70

80

90

100

0

052

VIN = +24V

VOUT = +1.8V

fSW = 125kHz

EFFICIENCY vs. OUTPUT CURRENT

AND OUTPUT VOLTAGE

IOUT (A)

48

44

40

36

32

28

24

20

16

12

8

4

50

40

30

20

10

60

70

80

90

100

0

052

VOUT = +1.1V

VOUT = +1.5V

VOUT = +1.8V

VIN = +12V

fSW = 250kHz

EFFICIENCY vs. OUTPUT CURRENT

AND OUTPUT VOLTAGE

IOUT (A)

48

44

40

36

32

28

24

20

16

12

8

4

50

40

30

20

10

60

70

80

90

100

0

052

VOUT = +1.1V

VOUT = +1.5V

VOUT = +1.8V

VIN = +5V

fSW = 500kHz

SUPPLY CURRENT

vs. FREQUENCY AND INPUT VOLTAGE

FREQUENCY (kHz)

550

500

400 450

200 250 300 350

150

6.5

7.0

7.5

8.0

8.5

9.0

9.5

10.0

10.5

11.0

11.5

12.0

6.0

100

600

VIN = +24V

VIN = +12V

VIN = +5V

EXTERNALCLOCK

NO DRIVER LOAD

SUPPLY CURRENT

vs. TEMPERATURE AND FREQUENCY

TEMPERATURE (

°C)

60

35

10

-15

10

20

30

40

50

60

70

80

90

100

0

-40

85

250kHz

125kHz

VIN = +12V

CDL_ = 22nF

CDH_ = 8.2nF

SUPPLY CURRENT

vs. TEMPERATURE AND FREQUENCY

TEMPERATURE (

°C)

60

35

10

-15

50

75

100

125

150

175

25

-40

85

600kHz

500kHz

VIN = +5V

CDL_ = 22nF

CDH_ = 8.2nF

SUPPLY CURRENT

vs. LOAD CAPACITANCE PER DRIVER

CDRIVER (nF)

13

11

7

9

5

3

10

20

30

40

50

60

70

80

90

100

0

115

VIN = +12V

fSW = 250kHz

Typical Operating Characteristics

(Circuit of Figure 1. TA = +25°C, unless otherwise noted.)

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MAX5038AEAI15 Datasheet(PDF) 5 Page - Maxim Integrated Products

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