MAX6469UT15BD3(2003) Просмотр технического описания (PDF) - Maxim Integrated

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MAX6469UT15BD3
(Rev.:2003)

300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit

Maxim Integrated 

300mA LDO Linear Regulators with Internal

Microprocessor Reset Circuit

ELECTRICAL CHARACTERISTICS (continued)

(VIN = (VOUT + 0.5V) or +2.5V, whichever is greater, COUT = 3.3µF, TA = -40°C to +85°C. Typical specifications are at TA = +25°C,

unless otherwise noted.) (Note 2)

PARAMETER

Dropout Voltage

(Notes 3, 4)

Output Current Limit

SYMBOL

∆VDO

CONDITIONS

VOUT = +3.3V

(fixed output operation)

VOUT = +3.0V

(fixed output operation)

VOUT = +2.8V

(fixed output operation)

VOUT = +2.5V

(fixed output operation)

IOUT = 50mA

IOUT = 150mA

IOUT = 300mA

IOUT = 50mA

IOUT = 150mA

IOUT = 300mA

IOUT = 50mA

IOUT = 150mA

IOUT = 300mA

IOUT = 50mA

IOUT = 150mA

IOUT = 300mA

VIN ≥ 2.5V (Note 3)

MIN TYP MAX UNITS

23

32

55

90

114

180

25

40

61

100

114

190

mV

26

50

65

110

137

210

30

60

75

150

158

250

450

mA

Input Reverse Leakage Current

(OUT to IN Leakage Current)

VIN = 4V, VOUT = 5.5V, SHDN deasserted

0.01 1.5

µA

Startup Time Response

SHDN Input Low Voltage

SHDN Input High Voltage

SHDN Input Current

Thermal-Shutdown Temperature

Thermal-Shutdown Hysteresis

Line Regulation

Load Regulation

Output Voltage Noise

RESET CIRCUIT

VOUT Reset Threshold

(VFB for MAX6475/MAX6476/

MAX6483/MAX6484) (Note 5)

VIL

VIH

TSHDN

∆TSHDN

Rising edge of VIN or SHDN to VOUT

within specification, RL = 68Ω, SET = GND,

IOUT = 10mA

SHDN = VIN or GND

0.7 × VIN

-1

VOUT = 1.5V, 2.5V ≤ VIN ≤ 5.5V,

IOUT = 10mA

VOUT = 1.5V, VIN = 2.5V, 1mA ≤ IOUT ≤

150mA

10Hz to 100kHz,

CIN = 0.1µF,

IOUT = 100mA,

VOUT = 1.5V

MAX6469–MAX6476

MAX6477–MAX6484

20

0.1

180

20

0.09

0.2

150

75

µs

0.3 × VIN V

V

+1

µA

°C

°C

%/V

%

µVRMS

VTHOUT

MAX64_ _ _ _ _ _ A

MAX64_ _ _ _ _ _ B

90

92.5

95

%VOUT

85

87.5

90

VOUT to Reset Delay

(VFB for MAX6475/MAX6476/

MAX6483/MAX6484)

35

µs

Reset Timeout Period

(Note 6)

D1

D2

tRP

D3

D4

2.5

3.75

5.0

20

30

40

ms

150 225 300

1200 1800 2400

_______________________________________________________________________________________ 3

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