LT1120AC データシートの表示（PDF） - Linear Technology

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LT1120AC

Micropower Regulator with Comparator and Shutdown

Linear Technology 

LT1120A

TYPICAL PERFOR A CE CHARACTERISTICS

Dropout Voltage

1

∆VOUT = 100mV

Regulator Minimum Load Current

100

0.1

10

0.01

0.1

1

10

100

1000

REGULATOR OUTPUT CURRENT (mA)

1120A G04

Supply Current

10

IOUT = 100mA

1

1

70 80 90 100 110 120 130 140 150

TEMPERATURE (°C)

1120A G05

Supply Current at Dropout

10

IOUT = 100mA

1

0.1 IOUT = 10mA

IOUT = 1mA

VOUT = 5V

0.01

1

5

10

15

20

25

REGULATOR INPUT-OUTPUT DIFFERENTIAL (V)

1120A G07

Feedback Pin Current

40

35

30

TJ = –55°C

25

20

15

TJ = 25°C

10

5

TJ = 125°C

0

0.1

1

10

100

1000

REGULATOR OUTPUT CURRENT (mA)

1120A G10

0.1

IOUT = 10mA

IOUT = 1mA

0.01

0

0.1 0.2 0.3 0.4 0.5 0.6

REGULATOR INPUT-OUTPUT DIFFERENTIAL (V)

1120A G08

Regulator Thermal Regulation

0.1

VIN = 15V

VOUT = 5V

0

–0.1

50

0

0 20 40 60 80 100 120 140 160 180

TIME (ms)

1120A G11

Regulator Ripple Rejection

70

65

IOUT = 100mA

60

55

50 IOUT = 10mA

45

IOUT = 1mA

40 VIN = 10VDC,

1VP-P

35 VOUT = 5V

COUT = 10µF

30

10

100

1k

10k

RIPPLE FREQUENCY (Hz)

100k

1120A G06

Reference Regulation

4

3

2

1

0

–1

–2

–3

–4

–1.5 –1.0 –0.5 0

0.5 1.0 1.5

REFERENCE OUTPUT CURRENT (mA)

1120A G09

Turn-On Characteristic

5.5

VOUT = 5V

5.0

NO LOAD

4.5

4.0

RL = 500Ω

3.5

3.0

2.5

2.0

RL = 50Ω

0

012 345678

INPUT VOLTAGE (V)

1120A G12

1120afa

4

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