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LM317 on a board, in 3D

LM317

Jiangsu Changjing Electronics Technology (CJ)

0.003%Vout 0℃~+125℃@(Tj) 1 1.2V~37V 1A 40V 40V 46uA 60dB@(120Hz) Adjustable Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS

Extended
DatasheetJLCPCBLCSCcj/LM317
Category
Voltage Regulators Linear, Low Drop Out (LDO) Regulators
Package
TO-220-3
Pins
4

Overview

The LM317 is a voltage Regulators Linear, Low Drop Out (LDO) Regulator made by Jiangsu Changjing Electronics Technology (CJ) in a TO-220-3 package with 3 pins. 0.003%Vout 0℃~+125℃@(Tj) 1 1.2V~37V 1A 40V 40V 46uA 60dB@(120Hz) Adjustable Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Pro:LM317_C22147, from EasyEDA Pro) and its footprint (Package_TO_SOT_THT:TO-220-3_Vertical, from KiCad's library), ready for a KiCad board. 10,406 are in stock at JLCPCB (part C84244).

Symbol

IN3ADJ1OUT2
EasyEDA_Pro:LM317_C22147From EasyEDA Pro

Footprint

123
Package_TO_SOT_THT:TO-220-3_VerticalFrom KiCad's library

Parameters

15
Dropout Voltage
5V@(500mA)
Features
Over Current Protection
Maximum Input Voltage
40V
Noise
0.01%Vout
Number of Outputs
1
Operating Temperature
0℃~+125℃@(Tj)
Output Configuration
Positive
Output Current
1.5A
Output Polarity
Positive
Output Type
Adjustable
Output Voltage
1.2V~37V
Power Supply Rejection Ratio (PSRR)
66dB@(120Hz)
Voltage - Supply
40V
Voltage Dropout
5V@(500mA)
standby current
46uA

Order codes

4

Pinout

3
The pins of the LM317
PinNameType
1ADJUnspecified
2OUTUnspecified
3INUnspecified

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Questions

Is there a KiCad symbol and footprint for the LM317?

Yes. The symbol is EasyEDA_Pro:LM317_C22147 and the footprint Package_TO_SOT_THT:TO-220-3_Vertical, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LM317?

TO-220-3, with 3 pins. Its footprint is drawn on this page.

Where is the LM317 datasheet?

Jiangsu Changjing Electronics Technology (CJ) publishes it: the Datasheet link on this page opens it.

Where can I order the LM317?

JLCPCB lists it as part C84244, with 10,406 in stock; the sellers' links on this page open their listings.

What can replace the LM317?

Parts like it in the library: the L7812CV-JSM by JSMSEMI, the LM1084IT-5.0 by HGSEMI, the LM1084IT-ADJ by HGSEMI and the LM317T by HGSEMI. Check their datasheets: a part that fits the footprint may still differ in its ratings.

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