MAX8840ELT26+T datasheet(2/10 Pages) MAXIM

Part #	MAX8840ELT26+T

Description	Ultra-Low-Noise, High PSRR, Low-Dropout, 150mA Linear Regulators in uDFN

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Manufacturer	MAXIM [Maxim Integrated Products]

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Ultra-Low-Noise, High PSRR, Low-Dropout,

150mA Linear Regulators in µDFN

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN = VOUT + 0.5V, TA = -40°C to +85°C, unless otherwise noted. CIN = 1µF, COUT = 1µF, CBP = 10nF. Typical values are at +25°C;

the MAX8842 is tested with 2.45V output, unless otherwise noted.) (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 to GND .................................................................-0.3V to +7V

Output Short-Circuit Duration ............................................Infinite

OUT, SHDN to GND ......................................-0.3V to (IN + 0.3V)

FB, BP, N.C. to GND..................................-0.3V to (OUT + 0.3V)

Continuous Power Dissipation (TA = +70°C)

6-Pin µDFN (derate 2.1mW/°C above +70°C) .............0.168W

θJA..................................................................................477°C/W

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 Range

VIN

26

V

IOUT = 1mA, TA = +25°C

-1

+1

IOUT = 100µA to 80mA, TA = +25°C

-2

+2

Output Voltage Accuracy

IOUT = 100µA to 80mA

-3

+3

%

Maximum Output Current

IOUT

150

mA

Current Limit

ILIM

OUT = 90% of nominal value

150

200

300

mA

VOUT

≥ 3V, IOUT = 80mA

80

170

VOUT

≥ 3V, IOUT = 120mA

120

2.5V

≤ VOUT < 3V, IOUT = 80mA

90

200

2.5V

≤ VOUT < 3V, IOUT = 120mA

135

2V

≤ VOUT < 2.5V, IOUT = 80mA

120

250

Dropout Voltage (Note 2)

2V

≤ VOUT < 2.5V, IOUT = 120mA

180

mV

IOUT = 0.05mA

40

90

Ground Current

IQ

VIN = VOUT(nom) - 0.1V, IOUT = 0mA

220

500

µA

Line Regulation

VLNR

VIN = (VOUT + 0.5V) to 6V, IOUT = 0.1mA

0.001

%/V

Load Regulation

VLDR

IOUT = 1mA to 80mA

0.003

%/mA

TA = +25°C

0.003

1

Shutdown Supply Current

ISHDN

SHDN = 0V

TA = +85°C

0.05

µA

MAX8840

78

f = 1kHz, IOUT = 10mA

MAX8841/MAX8842

72

MAX8840

75

f = 10kHz, IOUT = 10mA

MAX8841/MAX8842

65

MAX8840

54

Ripple Rejection

PSRR

f = 100kHz, IOUT = 10mA

MAX8841/ MAX8842

46

dB

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