LT1965_15 datasheet(4/22 Pages) LINER

Part #	LT1965

Description	1.1A, Low Noise, Low Dropout Linear Regulator

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Manufacturer	LINER [Linear Technology]

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LT1965 Series

4

1965fb

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electrical characteristics

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Input Voltage

(Notes 4, 12)

ILOAD = 0.5A

ILOAD = 1.1A (TJ < 125°C)

ILOAD = 1A (H-Grade, TJ > 125°C)

l

1.65

1.8

2.3

V

Regulated Output Voltage

(Note 5)

LT1965-1.5, VIN = 2.1V, ILOAD = 1mA

LT1965-1.5, 2.5 < VIN < 20V, 1mA < ILOAD < 1.1A

l

1.477

1.455

1.5

1.523

1.545

V

LT1965-1.8, VIN = 2.3V, ILOAD = 1mA

LT1965-1.8, 2.8 < VIN < 20V, 1mA < ILOAD < 1.1A

l

1.773

1.746

1.8

1.827

1.854

V

LT1965-2.5, VIN = 3V, ILOAD = 1mA

LT1965-2.5, 3.5 < VIN < 20V, 1mA < ILOAD < 1.1A

l

2.462

2.425

2.5

2.538

2.575

V

LT1965-3.3, VIN = 3.8V, ILOAD = 1mA

LT1965-3.3, 4.3 < VIN < 20V, 1mA < ILOAD < 1.1A

l

3.25

3.201

3.3

3.35

3.399

V

ADJ Pin Voltage (Notes 4, 5)

VIN = 2.1V, ILOAD = 1mA

2.3V < VIN < 20V, 1mA < ILOAD < 1.1A (TJ < 125°C)

2.3V < VIN < 20V, 1mA < ILOAD < 1A (H-Grade, TJ > 125°C)

l

1.182

1.164

1.158

1.2

1.218

1.236

V

Line Regulation

LT1965-1.5, ∆VIN = 2.1V to 20V, ILOAD = 1mA

LT1965-1.8, ∆VIN = 2.3V to 20V, ILOAD = 1mA

LT1965-2.5, ∆VIN = 3V to 20V, ILOAD = 1mA

LT1965-3.3, ∆VIN = 3.8V to 20V, ILOAD = 1mA

LT1965, ∆VIN = 2.1V to 20V, ILOAD = 1mA (E-, I-Grades) (Note 4)

LT1965, ∆VIN = 2.1V to 20V, ILOAD = 1mA (H-Grade) (Note 4)

l

3.5

4

4.5

5.5

3

9

10

11.5

16

8

12

mV

Load Regulation

LT1965-1.5, VIN = 2.5V, ∆ILOAD = 1mA to 1.1A

l

5.25

10

20

mV

LT1965-1.8, VIN = 2.8V, ∆ILOAD = 1mA to 1.1A

l

6.25

12

24

mV

LT1965-2.5, VIN = 3.5V, ∆ILOAD = 1mA to 1.1A

l

8.75

16.5

33

mV

LT1965-3.3, VIN = 4.3V, ∆ILOAD = 1mA to 1.1A

l

11.5

22

44

mV

LT1965, VIN = 2.3V, ∆ILOAD = 1mA to 1.1A (Note 4)

LT1965, VIN = 2.3V, ∆ILOAD = 1mA to 1.1A (TJ < 125°C)

LT1965, VIN = 2.3V, ∆ILOAD = 1mA to 1A (H-Grade, TJ > 125°C)

l

4.25

8

16

22

mV

Dropout Voltage

VIN = VOUT(NOMINAL)

(Notes 6, 7, 12)

ILOAD = 1mA

l

0.055

0.08

0.14

V

ILOAD = 100mA

l

0.12

0.175

0.28

V

ILOAD = 500mA

l

0.21

0.25

0.36

V

ILOAD = 1.1A

ILOAD = 1.1A (TJ < 125°C)

ILOAD = 1A (H-Grade, TJ > 125°C)

l

0.31

0.36

0.49

V

GND Pin Current

VIN = VOUT(NOMINAL) + 1V

(Notes 6, 8)

ILOAD = 0mA

ILOAD = 1mA

ILOAD = 100mA

ILOAD = 500mA

ILOAD = 1.1A (TJ < 125°C)

ILOAD = 1A (H-Grade, TJ > 125°C)

l

0.5

0.6

2.2

8.2

21

1.1

1.5

5.5

20

40

mA

Output Voltage Noise

COUT = 10µF, ILOAD = 1.1A, BW = 10Hz to 100kHz

40

µVRMS

ADJ Pin Bias Current

(Notes 4, 9)

1.3

4.5

µA

Shutdown Threshold

VOUT = Off to On

VOUT = On to Off

l

0.2

0.85

0.45

2

V

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Note 3)

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