MAX6469UT 查看數據表（PDF） - Maxim Integrated

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MAX6469UT

300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit

Maxim Integrated 

300mA LDO Linear Regulators with Internal

Microprocessor Reset Circuit

ABSOLUTE MAXIMUM RATINGS

(All voltages referenced to GND, unless otherwise noted.)

IN, SHDN, OUT, FB ..................................................-0.3V to +7V

MR, SET .......................................................-0.3V to (VIN + 0.3V)

RESET (push-pull) ...................................-0.3V to (VOUT + 0.3V)

RESET (open drain)..................................................-0.3V to +7V

OUT Short Circuit .......................................................Continuous

Input/Output Current (all pins except IN and OUT) ............20mA

Continuous Power Dissipation (TA = +70°C)

3 x 3 UCSP (derate 10.5mW/°C above +70°C) ............840mW

6-Pin SOT23 (derate 9.1mW/°C above +70°C).............727mW

8-Lead Thin QFN

(derate 24.4mW/°C above +70°C) ..............................1951mW

Operating Temperature Range ..........................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Note 1: The MAX6477–MAX6484 are constructed using a unique set of packaging techniques that impose a limit on the thermal pro-

file the devices can be exposed to during board-level solder attach and rework. This limit permits only the use of the solder

profiles recommended in the industry-standard specification, JEDEC 020A, paragraph 7.6, Table 3 for IR/VPR and

Convection reflow. Pre-heating is required. Hand or wave soldering is not allowed.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(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

Input Voltage Range

Input Undervoltage Lockout

Supply Current (Ground Current)

Shutdown Supply Current

REGULATOR CIRCUIT

Output Current

Output Voltage Accuracy (Fixed

Output Voltage Operation,

Table 1) MAX6469–MAX6476

Output Voltage Accuracy (Fixed

Output Voltage Operation,

Table 1) MAX6477–MAX6484

Adjustable Output Voltage Range

SET Reference Voltage

SET Dual ModeTM Threshold

SET Input Leakage Current

SYMBOL

VIN

VUVLO

IQ

ISHDN

VSET

ISET

CONDITIONS

VIN falling

IOUT = 0

IOUT = 300mA

TA = +25°C

1mA ≤ IOUT ≤ 150mA, TA = +25°C

1mA ≤ IOUT ≤ 150mA, TA = -40°C to +85°C

1mA ≤ IOUT ≤ 300mA, TA = -40°C to +85°C

2mA ≤ IOUT ≤ 100mA, TA = +25°C

2mA ≤ IOUT ≤ 100mA, TA = -40°C to +85°C

1mA ≤ IOUT ≤ 300mA, TA = -40°C to +85°C

VSET = 0, +1.2V (Note 3)

MIN

2.5

2.25

300

-1.3

-2.3

-2.7

-1.1

-2.0

-2.7

VSET

1.200

TYP

82

96

0.1

1.229

185

±20

MAX

5.5

2.47

136

1

+1.3

+2.3

+2.7

+1.1

+2.0

+2.7

5.0

1.258

±100

UNITS

V

V

µA

µA

mA

%

%

V

V

mV

nA

Dual Mode is a trademark of Maxim Integrated Products, Inc.

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