4

Electrical characteristics

Table 3. LM217M electrical characteristics (refer to the test circuits, TJ = - 40 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

0.02

%/V

0.02

0.05

ΔVO

Load regulation

VO ≤ 5 V

IO = 10 to 500 mA

TJ = 25 °C

5

15

mV

20

50

VO ≥ 5 V

IO = 10 to 500 mA

TJ = 25 °C

0.1

0.3

%/VO

0.3

1

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

5

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 (percentage of VO)

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 5/28