© Semiconductor Components Industries, LLC, 2013

April, 2021 − Rev. 14

1

Publication Order Number:

LM317L/D

Voltage Regulator -

Adjustable Output, Positive

100 mA

LM317L, NCV317L

The LM317L is an adjustable 3−terminal positive voltage regulator

capable of supplying in excess of 100 mA over an output voltage range

of 1.2 V to 37 V. This voltage regulator is exceptionally easy to use

and requires only two external resistors to set the output voltage.

Further, it employs internal current limiting, thermal shutdown and

safe area compensation, making them essentially blow−out proof.

The LM317L serves a wide variety of applications including local,

on card regulation. This device can also be used to make a

programmable output regulator, or by connecting a fixed resistor

between the adjustment and output, the LM317L can be used as a

precision current regulator.

Features

• Output Current in Excess of 100 mA

• Output Adjustable Between 1.2 V and 37 V

• Internal Thermal Overload Protection

• Internal Short Circuit Current Limiting

• Output Transistor Safe−Area Compensation

• Floating Operation for High Voltage Applications

• Standard 3−Lead Transistor Package

• Eliminates Stocking Many Fixed Voltages

• NCV Prefix for Automotive and Other Applications Requiring

Unique Site and Control Change Requirements; AEC−Q100

Qualified and PPAP Capable

• These are Pb−Free Devices

Simplified Application

* Cin is required if regulator is located an appreciable

** distance from power supply filter.

** CO is not needed for stability, however,

** it does improve transient response.

Since IAdj is controlled to less than 100 mA, the error

associated with this term is negligible in most applications.

LM317L

Vin

Vout

R1

240

R2

Adjust

IAdj

Cin*

0.1

mF

+ C

O**

1.0

mF

Vout + 1.25V 1 )

R2

R1

) IAdj R2

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 9 of this data sheet.

LOW CURRENT

THREE−TERMINAL

ADJUSTABLE POSITIVE

VOLTAGE REGULATOR

TO−92

Z SUFFIX

CASE 29−10

Pin 1. Adjust

2. Vout

3. Vin

SOIC−8

D SUFFIX

CASE 751

1

8

Pin 1. Vin

2. Vout

3. Vout

4. Adjust

5. N.C.

6. Vout

7. Vout

8. N.C.

www.onsemi.com

1 2

3

1

2

BENT LEAD

STRAIGHT LEAD

3

See general marking information in the device marking

section on page 9 of this data sheet.

DEVICE MARKING INFORMATION