MAX5091 datasheet(2/15 Pages) MAXIM

2 / 15 page

28V, 100mA, Low-Quiescent-Current LDO

with Reset and Power-Fail Input/Output

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS (MAX5091A)

(VS = +14V, VOUT = 5V, EN unconnected, TA = TJ = -40°C to +125°C, CIN = 10µF, COUT = 10µF, unless otherwise noted. Typical

specifications 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.

VS to GND ..............................................................-0.3V to +28V

VS to GND (t

≤ 1s) ..................................................-0.3V to +40V

VOUT to GND ..........................................................-0.3V to +20V

VS to OUT ...............................................................-0.3V to +28V

RES, SO to GND.....................................................-0.3V to +20V

RES, SO Output Sink Current................................................5mA

VOUT Short Circuit (VS

≤ 16V)…………......................Continuous

EN, SI to GND.........................................................-0.3V to +12V

CT to GND.............................-0.3V to the lower of VOUT or +12V

Continuous Power Dissipation (TA = +70°C)

8-Pin SO-EP (derate 19.2mW/°C above +70°C) .........1538mW*

Thermal Resistance (

θJA)................................................52°C/W

Thermal Resistance (

θJC)..................................................6°C/W

8-Pin TDFN-EP (derate 24.4mW/°C above +70°C).....1951mW**

Thermal Resistance (

θJA)................................................41°C/W

Thermal Resistance (

θJC)...............................................8.3°C/W

Operating Junction Temperature Range ...........-40°C to +125°C

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

Storage Temperature Range .............................-60°C to +150°C

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

TA = +25°C, IOUT = 1mA

4.95

5.05

5.6V ≤ VS ≤ 28V, IOUT = 1mA to 50mA (Note 2)

4.90

5.10

5.6V ≤ VS ≤ 40V, t ≤ 1s, IOUT = 1mA to 30mA

(Note 2)

4.9

5.1

Output Voltage

VOUT

VS = +8V, IOUT = 1mA to 100mA

4.9

5.1

IOUT = 10mA

0.1

0.25

IOUT = 50mA

0.2

0.4

Dropout Voltage

VDP

VS = +4.75V

IOUT = 100mA

0.3

0.5

VS to VOUT Difference in

Undervoltage

VIO

VS = +4V, IOUT = 35mA

0.4

Line Regulation

VOL

+5.5V ≤ VS ≤ +28V, IOUT = 1mA

0.6

Load Regulation

VOLO

1mA ≤ IOUT ≤ 100mA

Current Limit

ILIM

160

260

400

IOUT = 100µA

100

IOUT = 300µA

100

µA

Quiescent Current

IOUT = 100mA

4.5

Shutdown Supply Current

ISHDN

VEN ≤ +0.4V

µA

Thermal-Shutdown

Temperature

TJ(SHDN)

Temperature rising

+165

°C

Thermal-Shutdown

Hysteresis

ΔTJ(SHDN)

°C

*As per JEDEC51 Standard (single-layer board).

**As per JEDEC51 Standard (multilayer board).

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