LM317L

2

MOTOROLA ANALOG IC DEVICE DATA

MAXIMUM RATINGS

Rating

Symbol

Value

Unit

Input–Output Voltage Differential

VI–VO

40

Vdc

Power Dissipation

PD

Internally Limited

W

Operating Junction Temperature Range

TJ

–40 to +125

°C

Storage Temperature Range

Tstg

–65 to +150

°C

unless otherwise noted.)

LM317L, LB

Characteristics

Figure

Symbol

Min

Typ

Max

Unit

Line Regulation (Note 3)

TA = 25°C, 3.0 V ≤ VI – VO ≤ 40 V

1

Regline

–

0.01

0.04

%/V

Load Regulation (Note 3), TA = 25°C

10 mA

≤ IO ≤ Imax – LM317L

VO ≤ 5.0 V

VO ≥ 5.0 V

2

Regload

–

–

5.0

0.1

25

0.5

mV

% VO

Adjustment Pin Current

3

IAdj

–

50

100

µA

Adjustment Pin Current Change

2.5 V

≤ VI – VO ≤ 40 V, PD ≤ Pmax

10 mA

≤ IO ≤ Imax – LM317L

1, 2

∆IAdj

–

0.2

5.0

µA

Reference Voltage

3.0 V

≤ VI – VO ≤ 40 V, PD ≤ Pmax

10 mA

≤ IO ≤ Imax – LM317L

3

Vref

1.20

1.25

1.30

V

Line Regulation (Note 3)

3.0 V

≤ VI – VO ≤ 40 V

1

Regline

–

0.02

0.07

%/V

Load Regulation (Note 3)

10 mA

≤ IO ≤ Imax – LM317L

VO ≤ 5.0 V

VO ≥ 5.0 V

2

Regload

–

–

20

0.3

70

1.5

mV

% VO

Temperature Stability (Tlow ≤ TJ ≤ Thigh)

3

TS

–

0.7

–

% VO

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

3

ILmin

–

3.5

10

mA

Maximum Output Current

VI – VO ≤ 6.25 V, PD ≤ Pmax, Z Package

VI – VO ≤ 40 V, PD ≤ Pmax, TA = 25°C, Z Package

3

Imax

100

–

200

20

–

–

mA

RMS Noise, % of VO

TA = 25°C, 10 Hz ≤ f ≤ 10 kHz

N

–

0.003

–

% VO

Ripple Rejection (Note 4)

VO = 1.2 V, f = 120 Hz

CAdj = 10 µF, VO = 10.0 V

4

RR

60

–

80

80

–

–

dB

Long Term Stability, TJ = Thigh (Note 5)

TA = 25°C for Endpoint Measurements

3

S

–

0.3

1.0

%/1.0 k

Hrs.

Thermal Resistance, Junction–to–Case

Z Package

R

θJC

–

83

–

°C/W

Thermal Resistance, Junction–to–Air

Z Package

R

θJA

–

160

–

°C/W

NOTES: 1. Tlow to Thigh = 0° to +125°C for LM317L

–40

° to +125°C for LM317LB

2. Imax = 100 mA

Pmax = 625 mW

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. 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.