Automotive Micropower Linear Regulators

with Supervisor

6

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Typical Operating Characteristics (continued)

OUTPUT VOLTAGE

vs. LOAD CURRENT

1.79

1.77

1.76

1.75

1.78

1.80

1.83

1.84

1.82

1.81

1.85

20

40

60

80

100

LOAD CURRENT (mA)

030

10

50

70

90

0

20

40

60

80

100

120

140

160

0

25

50

75

100

125

RESET TIMEOUT PERIOD

vs. CAPACITOR VALUE

CAPACITOR VALUE (nF)

0.94

0.96

1.08

1.00

0.98

1.02

1.04

1.06

1.10

-40

-10 5

20

-25

35 50

95

80

110

65

125

NORMALIZED RESET TIMEOUT PERIOD

vs. TEMPERATURE

TEMPERATURE (°C)

NORMALIZED WATCHDOG TIMEOUT

vs. TEMPERATURE

0.90

0.92

1.04

0.96

0.94

0.98

1.00

1.02

1.06

-40

-10 5

20

-25

35 50

95

80

110

65

125

TEMPERATURE (°C)

0

1.0

0.5

2.0

1.5

2.5

3.0

3.5

4.0

010

15

5

2025303540

RESET OUTPUT vs. SINK CURRENT

SINK CURRENT (mA)

0

0

1.0

0.5

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

4

8

12

16

SOURCE CURRENT (mA)

6

210

14

RESET OUTPUT vs. SOURCE CURRENT

34

35

36

37

38

39

40

41

42

0.001

0.01

0.1

1

10

100

SUPPLY CURRENT

vs. WATCHDOG INPUT FREQUENCY

WATCHDOG INPUT FREQUENCY (kHz)

ENABLE

5V/div

GATE

5V/div

HOLD

5V/div

OUT

5V/div

OUT AND HOLD vs. ENABLE

MAX6765 toc16

20ms/div

(SEE TEST CIRCUIT FOR ENABLE AND HOLD)