300mA LDO Linear Regulators with Internal
Microprocessor Reset Circuit
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND, unless otherwise noted.)
Continuous Power Dissipation (T = +70°C)
A
IN, SHDN, OUT, FB ..................................................-0.3V to +7V
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
MR, SET.......................................................-0.3V to (V + 0.3V)
IN
OUT
RESET (push-pull) ...................................-0.3V to (V
+ 0.3V)
RESET (open drain)..................................................-0.3V to +7V
OUT Short Circuit .......................................................Continuous
Input/Output Current (all pins except IN and OUT)............20mA
(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
(V = (V
+ 0.5V) or +2.5V, whichever is greater, C
= 3.3µF, T = -40°C to +85°C. Typical specifications are at T = +25°C,
IN
OUT
OUT
A
A
unless otherwise noted.) (Note 2)
PARAMETER
Input Voltage Range
SYMBOL
CONDITIONS
MIN
2.5
TYP
MAX
5.5
UNITS
V
V
V
IN
Input Undervoltage Lockout
V
V
falling
2.25
2.47
136
UVLO
IN
I
I
= 0
= 300mA
= +25°C
82
96
OUT
OUT
Supply Current (Ground Current)
I
µA
µA
Q
Shutdown Supply Current
REGULATOR CIRCUIT
Output Current
I
T
0.1
1
SHDN
A
300
-1.3
-2.3
mA
%
1mA ≤ I
1mA ≤ I
1mA ≤ I
2mA ≤ I
2mA ≤ I
1mA ≤ I
≤ 150mA, T = +25°C
+1.3
+2.3
+2.7
+1.1
+2.0
OUT
OUT
A
Output Voltage Accuracy (Fixed
Output Voltage Operation,
Table 1) MAX6469–MAX6476
≤ 150mA, T = -40°C to +85°C
A
≤ 300mA, T = -40°C to +85°C
-2.7
-1.1
-2.0
-2.7
OUT
OUT
OUT
OUT
A
≤ 100mA, T = +25°C
A
Output Voltage Accuracy (Fixed
Output Voltage Operation,
Table 1) MAX6477–MAX6484
≤ 100mA, T = -40°C to +85°C
%
A
≤ 300mA, T = -40°C to +85°C
+2.7
5.0
A
Adjustable Output Voltage Range
SET Reference Voltage
SET Dual ModeTM Threshold
SET Input Leakage Current
V
V
V
mV
nA
SET
V
1.200
1.229
185
20
1.258
SET
I
V
= 0, +1.2V (Note 3)
100
SET
SET
Dual Mode is a trademark of Maxim Integrated Products, Inc.
2
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