LR1117AD285 datasheet(4/9 Pages) LRC

Part #	LR1117AD285

Description	1A Adjustable/Fixed Low Dropout Linear Regulator

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Manufacturer	LRC [Leshan Radio Company]

Direct Link	http://www.lrc.cn/

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4 / 9 page

Typical Performance Characteristics

1.5

0.10

0.05

0

-0.05

-0.10

-0.15

-0.20

1.4

1.3

1.2

1.1

1.0

0.9

0.8

0.7

0.6

0.5

1.260

1.255

1.250

1.245

1.240

1.235

1.230

1.225

1.220

1.215

1.210

0

0.6

0.8

0.4

0.2

OUTPUT CURRENT (A)

JUNCTION TEMPERATURE (

°C)

JUNCTION TEMPERATURE (

°C)

JUNCTION TEMPERATURE (

°C)

3.70

3.65

3.60

3.55

3.50

3.45

3.40

3.35

3.30

3.25

3.20

100

90

80

70

60

50

40

30

20

10

0

5

4

3

2

1

0

1.0

-75 -50 -25 0

25 50 75 100 125 150 175

-75 -50 -25 0

25 50 75 100 125 150 175

-75 -50 -25 0

25 50 75 100 125 150 175

JUNCTION TEMPERATURE (

°C)

-75 -50 -25 0

25 50 75 100 125 150 175

JUNCTION TEMPERATURE (

°C)

-75 -50 -25 0

25 50 75 100 125 150 175

TJ = 125°C

TJ = 0°C

TJ = 25°C

∆I = 1A

VOUT = 3.6V

1

VOUT SET WITH 1% RESISTORS

VOUT = 3.3V

Note:

1. LR1117A Only

Note:

1. LR1117A Only

Figure 2. Dropout Voltage vs. Output Current

Figure 3. Load Regulation vs. Temperature

Figure 4. Reference Voltage vs. Temperature

Figure 5. Output Voltage vs. Temperature

Figure 6. Minimum Load Current vs. Temperature

Figure 7. Adjust Pin Current vs. Temperature

4/9

LESHAN RADIO COMPANY, LTD.

LR1117A

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