MAX1810ESA datasheet(2/8 Pages) MAXIM

2 / 8 page

Network Interface Card Smart Regulator

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VMAIN = VSTBY = +5.0V, VAUX = +3.3V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)

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.

MAIN, STBY, AUX, OUT to GND ...........................-0.3V to +6.0V

OUT to AUX ...........................................................-0.3V to +6.0V

OUT Maximum Output Current .......................................1750mA

Continuous Power Dissipation (TA = +70°C)

8-Pin SO (derate 11.75mW/°C above +70°C)..............900mW

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

CONDITIONS

MIN

TYP

MAX

UNITS

MAIN or STBY Input Range

4.5

5.5

AUX Input Range

3.0

3.6

Maximum Load Current

500

MAIN or STBY Quiescent Current

IOUT = 10mA

0.75

3mA

AUX Quiescent Current

VMAIN = VSTBY = 0, VAUX = +3.6V

0.2

0.5

Reverse Leakage from AUX to

MAIN or STBY

VAUX = +3.6V, VMAIN or VSTBY = 0

µA

Reverse Leakage from MAIN or

STBY to AUX

VAUX = 0, VMAIN or VSTBY = +5.5V

100

µA

OUT Load Capacitance

COUT ESR < 50m

Ω

µF

MAIN or STBY Detect Threshold

MAIN or STBY falling

3.925

4.100

4.275

MAIN or STBY High Threshold

MAIN or STBY rising

4.475

MAIN or STBY Hysteresis

150

OUT Voltage

+4.5V < (VMAIN or VSTBY) < +5.5V, 0 < IOUT < 400mA

3.234

3.3

3.366

OUT Line Regulation

+4.5V< (VMAIN or VSTBY) < +5.5V

0.01

OUT Load Regulation

IOUT = 30mA to 400mA, VMAIN or VSTBY = +5V

0.22

AUX to OUT Voltage Drop

IOUT = 400mA

118

AUX Switch Resistance

MAIN = STBY = GND

0.180

0.295

Ω

AUX Disable Threshold

2.5

2.8

Thermal Shutdown

170

°C

Thermal Shutdown Hysteresis

°C

Current-Limit Threshold

VAUX = VOUT = 0

520

900

1750

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