LM317M 데이터 시트보기 (PDF) - ON Semiconductor

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LM317M

500 mA Adjustable Output, Positive Voltage Regulator

ON Semiconductor 

LM317M, NCV317MAB, NCV317MB

MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.)

Rating

Symbol

Value

Unit

Input−Output Voltage Differential

VI−VO

40

Vdc

Power Dissipation (Package Limitation) (Note 1)

Plastic Package, T Suffix, Case 221A

TA = 25°C

Thermal Resistance, Junction−to−Air

Thermal Resistance, Junction−to−Case

Plastic Package, DT Suffix, Case 369C

TA = 25°C

Thermal Resistance, Junction−to−Air

Thermal Resistance, Junction−to−Case

Plastic Package, ST Suffix, Case 318E

TA = 25°C

Thermal Resistance, Junction−to−Air

Thermal Resistance, Junction−to−Case

PD

Internally Limited

qJA

70

°C/W

qJC

5.0

°C/W

PD

Internally Limited

qJA

92

°C/W

qJC

5.0

°C/W

PD

Internally Limited

qJA

245

°C/W

qJC

15

°C/W

Operating Junction Temperature Range

TJ

−40 to +150

°C

Storage Temperature Range

Tstg

−65 to +150

°C

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

1. Figure 25 provides thermal resistance versus PC board pad size.

ELECTRICAL CHARACTERISTICS (VI − VO = 5.0 V; IO = 0.1 A, TJ = Tlow to Thigh (Note 2), unless otherwise noted.)

Characteristics

LM317M / LM317MB/NCV317MB

Figure Symbol

Min

Typ

Max

Unit

Line Regulation (Note 3) (TA = 25°C, 3.0 V ≤ VI − VO ≤ 40 V)

Load Regulation (Note 3)

TA = 25°C, 10 mA ≤ IO ≤ 0.5 A

VO ≤ 5.0 V

VO ≥ 5.0 V

Adjustment Pin Current

Adjustment Pin Current Change

2.5 V ≤ VI − VO ≤ 40 V, 10 mA ≤ IL ≤ 0.5 A, PD ≤ Pmax

Reference Voltage

3.0 V ≤ VI − VO ≤ 40 V, 10 mA ≤ IL ≤ 0.5 A, PD ≤ Pmax

Line Regulation 3.0 V ≤ VI−VO ≤ 40 V (Note 3)

Load Regulation 10 mA ≤ IO ≤ 0.5 A (Note 3)

VO ≤ 5.0 V

VO ≥ 5.0 V

Temperature Stability (Tlow ≤ TJ ≤ Thigh)

Minimum Load Current to Maintain Regulation (VI − VO = 40 V)

Maximum Output Current

VI − VO ≤ 15 V, PD ≤ Pmax

VI − VO = 40 V, PD ≤ Pmax, TA = 25°C

RMS Noise, % of VO (TA = 25°C, 10 Hz ≤ f ≤ 10 kHz)

Ripple Rejection, VO = 10 V, f = 120 Hz (Note 4)

Without CAdj

CAdj = 10 mF

Thermal Shutdown (Note 5)

3

Regline

4

Regload

5

IAdj

3, 4

DIAdj

5

Vref

3

Regline

4

Regload

5

TS

5

ILmin

5

Imax

−

N

6

RR

−

−

−

−

−

−

−

1.20

−

−

−

−

−

0.5

0.15

−

−

66

−

0.01

5.0

0.1

50

0.2

1.25

0.02

20

0.3

0.7

3.5

0.9

0.25

0.003

65

80

180

0.04

%/V

25

mV

0.5

% VO

100

mA

5.0

mA

1.30

V

0.07

%/V

70

mV

1.5

% VO

−

% VO

10

mA

A

−

−

−

% VO

dB

−

−

−

°C

Long−Term Stability, TJ = Thigh (Note 6)

TA= 25°C for End−point Measurements

5

S

−

0.3

1.0

%/1.0

kHrs.

2. Tlow to Thigh = 0° to +125°C for LM317M Tlow to Thigh = − 40° to +125°C for LM317MB, NCV317MB.

3. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account

separately. Pulse testing with low duty cycle is used.

4. CAdj, when used, is connected between the adjustment pin and ground.

5. Thermal characteristics are not subject to production test.

6. Since Long−Term Stability cannot be measured on each device before shipment, this specification is an engineering estimate of average

stability from lot−to−lot.

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