300mA LDO Linear Regulators with Internal

Microprocessor Reset Circuit

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3

ELECTRICAL CHARACTERISTICS (continued)

unless otherwise noted.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

23

32

55

90

(fixed output operation)

114

180

25

40

61

100

(fixed output operation)

114

190

26

50

65

110

(fixed output operation)

137

210

30

60

75

150

Dropout Voltage

(Notes 3, 4)

(fixed output operation)

158

250

mV

Output Current Limit

≥ 2.5V (Note 3)

450

mA

Input Reverse Leakage Current

(OUT to IN Leakage Current)

0.01

1.5

µA

Startup Time Response

Ω, SET = GND,

20

µs

SHDN Input Low Voltage

0.3

V

SHDN Input High Voltage

0.7

V

SHDN Input Current

-1

0.1

+1

µA

Thermal-Shutdown Temperature

180

°C

Thermal-Shutdown Hysteresis

20

°C

Line Regulation

0.09

%/V

Load Regulation

150mA

0.2

%

MAX6469–MAX6476

150

Output Voltage Noise

10Hz to 100kHz,

MAX6477–MAX6484

75

RESET CIRCUIT

MAX64_ _ _ _ _ _ A

90

92.5

95

MAX6483/MAX6484) (Note 5)

MAX64_ _ _ _ _ _ B

85

87.5

90

MAX6483/MAX6484)

35

µs

D1

2.5

3.75

5.0

D2

20

30

40

D3

150

225

300

Reset Timeout Period

(Note 6)

D4

1200

1800

2400

ms