LM317M 查看數據表（PDF） - STMicroelectronics

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LM317M

MEDIUM CURRENT 1.2 TO 37V ADJUSTABLE VOLTAGE REGULATOR

STMicroelectronics 

LM217M/LM317M

ELECTRICAL CHARACTERISTICS FOR LM217M (Refer to the test circuits, -40 ≤ Tj ≤ 125 oC

Vi - Vo = 5 V, Io = 100 mA, Pd ≤ 7.5W, unless otherwise specified)

Symbol

Parameter

∆Vo Line Regulation

Test Conditions

Vi - Vo = 3 to 40 V

Tj = 25 oC

Min.

Typ.

0 .0 1

Max.

0 .0 2

∆Vo Load Regulation

Vo ≤ 5V

Io = 10 mA to 500 mA

Vo ≥ 5V

Io = 10 mA to 500 mA

Tj = 25 oC

Tj = 25 oC

0 .0 2

5

20

0.1

0.3

0 .0 5

15

50

0.3

1

IADJ Adjustment Pin Current

50

1 00

∆IADJ Adjustment Pin Current

VREF Reference Voltage

∆Vo Output Voltage Temperature

Vo Stability

Vi - Vo = 3 to 40 V

Io = 10 mA to 500 mA

Vi - Vo = 3 to 40 V

Io = 10 mA to 500 mA

0.2

5

1.2 1.25 1.3

0.7

Io(min) Minimum Load Current

Vi - Vo = 40 V

3.5

5

Io( max) Maximum Output Current

Vi - Vo ≤15V

Vi - Vo =40V, Pd < PdMAX, Tj =25oC

500 1000

2 00

eN

SVR

Output Noise Voltage

(percentance of VO)

Supply Voltage Rejection (*)

B = 10Hz to 10KHz

Tj = 25 oC

Tj = 25 oC

f = 120 Hz

0. 003

C ADJ =0

65

CADJ =10µ F 66

80

(*) CADJ is connected between Adjust pin and Ground.

Unit

% /V

% /V

mV

mV

%/Vo

%/Vo

µA

µA

V

%

mA

mA

%

dB

dB

ELECTRICAL CHARACTERISTICS FOR LM317M (Refer to the test circuits, 0 ≤ Tj ≤ 125 oC

Vi - Vo = 5 V, Io = 100 mA, Pd ≤ 7.5W, unless otherwise specified)

Symbol

Parameter

∆Vo Line Regulation

Test Conditions

Vi - Vo = 3 to 40 V

Tj = 25 oC

Min.

Typ.

0 .0 1

Max.

0 .0 4

∆Vo Load Regulation

Vo ≤ 5V

Io = 10 mA to 500 mA

Vo ≥ 5V

Io = 10 mA to 500 mA

Tj = 25 oC

Tj = 25 oC

0 .0 2

5

20

0.1

0.3

0 .0 7

25

70

0.5

1.5

IADJ Adjustment Pin Current

50

1 00

∆IADJ Adjustment Pin Current

VREF Reference Voltage

∆Vo Output Voltage Temperature

Vo Stability

Vi - Vo = 3 to 40 V

Io = 10 mA to 500 mA

Vi - Vo = 3 to 40 V

Io = 10 mA to 500 mA

0.2

5

1.2 1.25 1.3

0.7

Io(min) Minimum Load Current

Io( max) Maximum Output Current

Vi - Vo = 40 V

Vi - Vo ≤15V

Vi - Vo =40V, Pd < PdMAX, Tj =25oC

3.5

10

500 1000

2 00

eN

SVR

Output Noise Voltage

(percentance of VO)

Supply Voltage Rejection (*)

B = 10Hz to 10KHz

Tj = 25 oC

Tj = 25 oC

f = 120 Hz

0. 003

C ADJ =0

65

CADJ =10µ F 66

80

(*) CADJ is connected between Adjust pin and Ground.

Unit

% /V

% /V

mV

mV

%/Vo

%/Vo

µA

µA

V

%

mA

mA

%

dB

dB

3/11

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