MAX1963 datasheet(2/12 Pages) MAXIM

2 / 12 page

Low-Input-Voltage, 300mA LDO Regulators

with RESET in SOT and TDFN

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN = (VOUT + 0.5V) or 1.8V, whichever is greater; SHDN = IN, CIN = 1µF, COUT = 4.7µF, TA = -40°C to +85°C, unless otherwise

noted. Typical values are at TA = +25°C.) (Note 1)

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.

IN, SHDN, RESET to GND .....................................-0.3V to +4.0V

OUT to GND ................................................-0.3V to (VIN + 0.3V)

Output Short-Circuit Duration.....................................Continuous

Continuous Power Dissipation (TA = +70°C)

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

6-Pin TDFN (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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Input Voltage

VIN

1.62

3.60

Input Undervoltage Lockout

VUVLO

VIN rising or falling

(180mV typical hysteresis)

1.30

1.60

IOUT = 150mA, TA = +25°C

-0.5

+0.5

Output Voltage Accuracy

IOUT = 1mA to 300mA,

VIN = (VOUT + 0.5V) to +3.6V

-1.5

+1.5

Maximum Output Current

IOUT

Continuous

300

mARMS

Current Limit

ILIM

VOUT = 96% of nominal value

450

550

650

No load

140

IOUT = 300mA

Ground Current

Dropout (Note 2)

µA

Dropout Voltage

VIN - VOUT IOUT = 300mA, VOUT

≥ 1.8V (Note 2)

100

200

Load Regulation

∆VLDR

IOUT = 1mA to 300mA

0.02

0.3

Line Regulation

∆VLNR

VIN = (VOUT + 0.5V) to +3.6V, IOUT = 1mA

-0.15

+0.01

+0.15

%/V

Output Noise

10Hz to 100kHz, IOUT = 10mA, VOUT = 1.5V

µVRMS

PSRR

f < 1kHz, IOUT = 10mA

SHUTDOWN

TA = +25°C

0.001

Shutdown Supply Current

IOFF

SHDN = GND

TA = +85°C

0.01

µA

VIH

VIN = 1.62V to 3.6V

1.4

SHDN Input Logic Levels

VIL

VIN = 1.62V to 3.6V

0.6

TA = +25°C

100

SHDN Input Bias Current

ISHDN

VSHDN = 0 or 3.6V

TA = +85°C5

Turn-On Delay

From SHDN high to OUT high, VOUT = 1.8V

µs

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