LT1020CN datasheet(4/16 Pages) LINER

Part #	LT1020CN

Description	Micropower Regulator and Comparator

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Manufacturer	LINER [Linear Technology]

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4

LT1020

sn1020 1020fcs

OUTPUT CURRENT (mA)

0.3

0.2

0.1

0

–0.1

–0.2

–0.3

0.1

10

100

1000

1020 G01

1

TJ = –55°C

TJ = 25°C

TJ = 125°C

PRELOAD = 100

µA

Regulator Short-Circuit Current

TEMPERATURE (

°C)

–50

350

300

250

200

150

100

50

0

1020 G03

30

150

–10

70

110

CURRENT LIMIT TIED TO GROUND

Regulator Load Regulation

Dropout Voltage

REGULATOR OUTPUT CURRENT (mA)

0.1

0.01

0.1

1

10

100

1020 G06

I DROPOUT DETECTOR = 0.1% IOUT

I DROPOUT DETECTOR = 1% IOUT

Dropout Voltage

REGULATOR OUTPUT CURRENT (mA)

100

10

1

0.1

0.01

0.1

10

100

1000

1020 G02

1

TJ = –55°C TO 125°C

Supply Current

REGULATOR OUTPUT CURRENT (mA)

0.1

0.01

0.1

1

10

1000

1020 G04

1

100

∆VOUT = 100mV

REGULATOR OUTPUT CURRENT (mA)

0.1

0.01

0.1

1

10

1000

1020 G05

1

100

DROPOUT DETECTOR = 5

µA

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Comparator

Offset Current

0V

≤ VCM ≤ 35V, VIN = 36V

q

20

nA

Gain-NPN Pull-Down

∆VOUT = 29V, RL = 20k

q

1000

V/ V

Common Mode Rejection

0V

≤ VCM ≤ 35V, VIN = 36V

q

80

dB

Power Supply Rejection

4.5V

≤ VIN ≤ 36V

q

80

dB

Output Sink Current

VIN = 4.5V (Note 3)

q

510

mA

Output Source Current

q

40

120

µA

Input Voltage Range

q

0VIN – 1

V

Leakage Current (NPN)

VIN = 36V

q

8

µA

TYPICAL PERFOR A CE CHARACTERISTICS

ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TJ = 25°C.

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: For 0V

≤ VCM ≤ 0.1V and T > 85°C IBIAS(MAX) is 100nA.

Note 3: For TA ≤ –40°C output ISINK(MIN) is 2.5mA.

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