Table 4. LM317M electrical characteristics (refer to the test circuits, TJ = 0 to 125 °C, VI - VO = 5 V,

IO = 100 mA, PD ≤ 7.5 Ω, unless otherwise specified).

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

ΔVO

Line regulation

VI - VO = 3 to 40 V

TJ = 25 °C

0.01

0.04

%/V

0.02

0.07

ΔVO

Load regulation

VO ≤ 5 V

IO = 10 to 500 mA

TJ = 25 °C

5

25

mV

20

70

VO ≥ 5 V

IO = 10 to 500 mA

TJ = 25 °C

0.1

0.5

%/VO

0.3

1.5

IADJ

Adjustment pin current

50

100

µA

ΔIADJ

Adjustment pin current

VI - VO = 3 to 40 V, IO = 10 to 500 mA

0.2

5

µA

VREF

Reference voltage

VI - VO = 3 to 40 V, IO = 10 to 500 mA

1.2

1.25

1.3

V

ΔVO/VO Output voltage temperature stability

0.7

%

IO(min)

Minimum load current

VI - VO = 40 V

3.5

10

mA

IO(max)

Maximum output current

VI - VO ≤ 15 V

500

1000

mA

VI - VO = 40 V, Pd < PDMAX,

TJ = 25 °C

200

eN

Output noise voltage (VO percentage)

B = 10 Hz to 100 kHz, TJ = 25 °C

0.003

%

SVR

Supply voltage rejection (1)

TJ = 25 °C

f = 120 Hz

CADJ = 0

65

dB

CADJ = 10 µF

66

80

1. CADJ is connected between the adjustment pin and ground.

LM217M, LM317M

Electrical characteristics

DS0522 - Rev 12

page 6/28