LT3015 Просмотр технического описания (PDF) - Linear Technology

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производитель

LT3015

1.5A, Low Noise, Negative Linear Regulator with Precision Current Limit

Linear Technology 

LT3015 Series

TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.

LT3015-15 GND Pin Current

–50

TJ = 25°C

–45

VSHDN = VIN

–40

*FOR VOUT = –15V

–35

RL = 10Ω

–30

IL = –1.5A*

–25

RL = 150Ω

–20

IL = –0.1A*

–15

RL = 15kΩ

IL = –1mA*

–10

RL = 30Ω

IL = –0.5A*

–5

0

0 –2 –4 –6 –8 –10 –12 –14 –16 –18 –20

INPUT VOLTAGE (V)

3015 G28

Negative SHDN Pin Thresholds

–1.4

TURN ON THRESHOLD

–1.2

–1.0

–0.8

TURN OFF THRESHOLD

–0.6

–0.4

–0.2

VIN = –2.3V

0

–75 –50 –25 0 25 50 75 100 125 150 175

TEMPERATURE (°C)

3015 G31

ADJ Pin Bias Current

200

150

100

50

0

–50

–100

–150

–200

–75 –50 –25

VIN = –2.3V

POSITIVE CURRENT FLOWS

INTO THE PIN

0 25 50 75 100 125 150 175

TEMPERATURE (°C)

3015 G34

10

GND Pin Current vs ILOAD

–35

VIN = –2.3V

–30 VOUT = –1.22V

TJ = –55°C

–25

TJ = –40°C

–20

–15

–10

–5

0

0.0

TJ = 125°C

TJ = 25°C

–0.2 –0.4 –0.6 –0.8 –1.0 –1.2 –1.4 –1.6

OUTPUT CURRENT (A)

3015 G29

Positive SHDN Pin Thresholds

1.4

TURN ON THRESHOLD

1.2

1.0

0.8

TURN OFF THRESHOLD

0.6

0.4

0.2

VIN = –2.3V

0.0

–75 –50 –25 0 25 50 75 100 125 150 175

TEMPERATURE (°C)

3015 G30

SHDN Pin Input Current

25

VIN = –30V

20

POSITIVE CURRENT FLOWS

INTO THE PIN

15

10

5

0

125°C

–5

25°C

–55°C

–10

–30 –25 –20 –15 –10 –5 0 5 10 15 20 25

SHDN PIN VOLTAGE (V)

3015 G32

ADJ Pin Bias Current

80

70

60

50

40

30

TJ = 25°C

POSITIVE CURRENT FLOWS

INTO THE PIN

20

0 –3 –6 –9 –12 –15 –18 –21 –24 –27 –30

INPUT VOLTAGE (V)

3015 G35

SHDN Pin Input Current

24

21

VIN = –15V

POSITIVE CURRENT FLOWS

18

INTO THE PIN

15

VSHDN = 15V

12

9

6

3

0

VSHDN = –15V

–3

–6

–75 –50 –25

0 25 50 75 100 125 150 175

TEMPERATURE (°C)

3015 G33

Line Regulation

–20.0

–17.5

–15.0

LT3015

LT3015-2.5

LT3015-3

LT3015-3.3

LT3015-5

LT3015-12

LT3015-15

–12.5

–10.0

–7.5

–5.0

–2.5

0.0

–75 –50 –25 0 25 50 75 100 125 150 175

TEMPERATURE (°C)

∆VIN = VOUT(NOMINAL) –0.5V TO –30V

(LT3015-2.5/-3/-3.3/-5/-12/-15)

∆VIN = –2.3V TO –30V (LT3015)

IL = –1mA

3015 G36

3015fb

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