MAX1795 datasheet(5/13 Pages) MAXIM

Part #	MAX1795

Description	Low Supply Current, Step-Up DC-DC Converters with True-Shutdown

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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5 / 13 page

Low Supply Current, Step-Up DC-DC Converters

with True-Shutdown

_______________________________________________________________________________________

5

100

0

0.1

1

10

100

1000

MAX1795

EFFICIENCY vs. LOAD CURRENT (+5V)

20

LOAD CURRENT (mA)

40

60

80

70

50

30

10

90

VBATT = +2.4V

VBATT = +1.2V

VBATT = +3.6V

100

0

0.1

1

10

100

1000

MAX1795

EFFICIENCY vs. LOAD CURRENT (+3.3V)

20

LOAD CURRENT (mA)

40

60

80

70

50

30

10

90

VBATT = +1.2V

L = 10

µH

VBATT = +2.4V

100

0

0.1

1

10

100

1000

MAX1796

EFFICIENCY vs. LOAD CURRENT (+5V)

20

LOAD CURRENT (mA)

40

60

80

70

50

30

10

90

VBATT = +1.2V

VBATT = +2.4V

VBATT = +3.6V

100

0

0.1

1

10

100

1000

MAX1796

EFFICIENCY vs. LOAD CURRENT (+3.3V)

20

LOAD CURRENT (mA)

40

60

80

70

50

30

10

90

VBATT = +1.2V

VBATT = +2.4V

100

0

0.1

1

10

100

1000

MAX1797

EFFICIENCY vs. LOAD CURRENT (+5V)

20

LOAD CURRENT (mA)

40

60

80

70

50

30

10

90

VBATT = +3.6V

VBATT = +2.4V

VBATT = +1.2V

100

0

0.1

1

10

100

1000

MAX1797

EFFICIENCY vs. LOAD CURRENT (+3.3V)

20

LOAD CURRENT (mA)

40

60

80

70

50

30

10

90

VBATT = +2.4V

VBATT = +1.2V

0

100

50

200

150

250

300

0

1.0 1.5 2.0

0.5

2.5 3.0 3.5 4.0 4.5 5.0 5.5

NO-LOAD BATTERY CURRENT

vs. INPUT BATT VOLTAGE

BATT VOLTAGE (V)

VOUT = +3.3V

VOUT = +5V

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

0.1

10

100

1

1000

STARTUP VOLTAGE

vs. LOAD CURRENT

LOAD CURRENT (mA)

VOUT = +3.3V

0

1.0

0.5

2.0

1.5

2.5

3.0

0

1.0 1.5 2.0

0.5

2.5 3.0 3.5 4.0 4.5 5.0 5.5

SHUTDOWN THRESHOLD

vs. INPUT BATT VOLTAGE

BATT VOLTAGE (V)

Typical Operating Characteristics

(L = 22µH, CIN = 47µF, COUT = 47µF, TA = +25

°C, unless otherwise noted.)

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