(V+ = 5V; CBYPASS = 0.1μF; C1 = C2 = 10μF; LV = open; OSC = open; TA = +25°C; unless otherwise noted.)

Typical Operating Characteristics (continued)

QUIESCENT CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

9

8

7

6

5

4

3

2

1

10

100

1000

2000

0.1

1

10

A

B

D

C

A: MAX1044, BOOST = V+, LV = GND

B: MAX1044, BOOST = V+, LV = OPEN

C: ICL7660 AND MAX1044 WITH

BOOST = OPEN, LV = GND;

ABOVE 5V, MAX1044 ONLY

D: ICL7660 AND MAX1044 WITH

BOOST = OPEN, LV = OPEN

QUIESCENT CURRENT

vs. TEMPERATURE

TEMPERATURE (°C)

100

75

50

25

0

-25

100

200

300

400

500

0

-50

125

ICL7660, MAX1044 WITH BOOST = OPEN

MAX1044 WITH

BOOST = V+

OUTPUT RESISTANCE

vs. OSCILLATOR FREQUENCY

FREQUENCY (Hz)

105

104

103

102

200

100

400

300

700

600

500

1000

900

800

0

101

EXTERNAL

HCMOS

OSCILLATOR

OUTPUT RESISTANCE

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

9

8

7

6

5

4

3

2

20

80

60

40

120

100

180

160

140

200

0

1

10

OUTPUT RESISTANCE

vs. TEMPERATURE

TEMPERATURE (°C)

120

100

80

60

40

20

0

-20

-40

30

40

50

60

70

80

20

-60

140

ICL7660,

MAX1044 WITH

BOOST = OPEN

MAX1044 WITH

BOOST = V+

MAX1044/ICL7660

Switched-Capacitor Voltage Converters

Maxim Integrated │ 5

www.maximintegrated.com

Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)