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LM317S on a board, in 3D

LM317S

Texas Instruments

0℃~+125℃@(Tj) 1 1.25V~37V 1.5A 40V 80dB@(120Hz) Adjustable Over Current Protection、Short Circuit Protection、Thermal shutdown Positive TO-263-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS

Extended
DatasheetJLCPCBLCSCti/LM317S
Category
Voltage Regulators Linear, Low Drop Out (LDO) Regulators
Package
TO-263-3
Pins
4

Overview

The LM317S is a voltage Regulators Linear, Low Drop Out (LDO) Regulator made by Texas Instruments in a TO-263-3 package with 4 pins. 0℃~+125℃@(Tj) 1 1.25V~37V 1.5A 40V 80dB@(120Hz) Adjustable Over Current Protection、Short Circuit Protection、Thermal shutdown Positive TO-263-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LM317_C7543014, from EasyEDA) and its footprint (Package_TO_SOT_SMD:TO-263-3_TabPin4, from KiCad's library), ready for a KiCad board. 27 are in stock at JLCPCB (part C352844). 3 open-source boards in 2 repositories on GitHub use it.

Symbol

ADJ1OUTPUT2INPUT3OUTPUT4
EasyEDA_Cloud:LM317_C7543014From EasyEDA

Footprint

1234
Package_TO_SOT_SMD:TO-263-3_TabPin4From KiCad's library

Parameters

9
Features
Short Circuit Protection
Number of Outputs
1
Operating Temperature
0℃~+125℃@(Tj)
Output Configuration
Positive
Output Current
1.5A
Output Type
Adjustable
Output Voltage
1.25V~37V
Power Supply Rejection Ratio (PSRR)
80dB@(120Hz)
Voltage - Supply
40V

Order codes

1

Pinout

4
The pins of the LM317S
PinNameType
1ADJUnspecified
2OUTPUTUnspecified
3INPUTUnspecified
4OUTPUTUnspecified

Open-source boards using it

All 3
  • 2 layers120 × 39.1 mmStarling WiPSU ver 0.1, the printed circuit board in 3D

    Starling WiPSU ver 0.1

    ExploreEmbedded/Starling

    Starling: A Modular Wifi Connected Hackable LED Display

    104 parts3
  • 2 layers95 × 95 mmProtohub, the printed circuit board in 3D

    Protohub

    Makdaam/interface_board

    Nokia display based interface board for prototyping

    43 parts
  • 2 layers45.5 × 18 mmStarling WiPSU ver 0.1, the printed circuit board in 3D

    Starling WiPSU ver 0.1

    ExploreEmbedded/Starling

    Starling: A Modular Wifi Connected Hackable LED Display

    26 parts3

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Questions

Is there a KiCad symbol and footprint for the LM317S?

Yes. The symbol is EasyEDA_Cloud:LM317_C7543014 and the footprint Package_TO_SOT_SMD:TO-263-3_TabPin4, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LM317S?

TO-263-3, with 4 pins. Its footprint is drawn on this page.

Where is the LM317S datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the LM317S?

JLCPCB lists it as part C352844, with 27 in stock; the sellers' links on this page open their listings.

What can replace the LM317S?

Parts like it in the library: the LM1084S-3.3/TR by HGSEMI, the LD1085D2M33R by STMicroelectronics, the AMS1084CM-5.0 by Advanced Monolithic Systems and the UZ1085L-33-TQ3-R by UTC. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the LM317S?

3 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8