Skip to the content
PCBKitNew board
LM317C on a board, in 3D

LM317C

Jiangsu Changjing Electronics Technology (CJ)

-40℃~+125℃@(Tj) 0.003%Vout 1 1.2V~37V 1.5A 3.5mA 3V 40V 65dB@(120Hz) Adjustable Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS

Extended
Category
Voltage Regulators Linear, Low Drop Out (LDO) Regulators
Package
SOT-223
Pins
4

Overview

The LM317C is a voltage Regulators Linear, Low Drop Out (LDO) Regulator made by Jiangsu Changjing Electronics Technology (CJ) in a SOT-223 package with 3 pins. -40℃~+125℃@(Tj) 0.003%Vout 1 1.2V~37V 1.5A 3.5mA 3V 40V 65dB@(120Hz) Adjustable Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LM317C_C5173769, from EasyEDA) and its footprint (EasyEDA_Cloud:TO-263-2_L10.2-W8.7-P5.08-LS15.1-BL, from EasyEDA), ready for a KiCad board. 6,436 are in stock at JLCPCB (part C17722351).

Symbol

ADJ1OUT2IN3
EasyEDA_Cloud:LM317C_C5173769From EasyEDA

Footprint

123
EasyEDA_Cloud:TO-263-2_L10.2-W8.7-P5.08-LS15.1-BLFrom EasyEDA

Parameters

13
Features
Over Current Protection
Noise
0.003%Vout
Number of Outputs
1
Operating Temperature
-40℃~+125℃@(Tj)
Output Configuration
Positive
Output Current
1.5A
Output Type
Adjustable
Output Voltage
1.2V~37V
Power Supply Rejection Ratio (PSRR)
65dB@(120Hz)
Reference Type
Series
Voltage - Supply
40V
Voltage Dropout
3V
standby current
3.5mA

Order codes

3

Pinout

3
The pins of the LM317C
PinNameType
1ADJUnspecified
2OUTUnspecified
3INUnspecified

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/cj/LM317C" title="LM317C in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/cj/LM317C.jpg" alt="LM317C" width="1200" height="900">
A picture that opens the part, for a README
[![LM317C](https://pcbkit.io/embed/parts/cj/LM317C.jpg?size=s)](https://pcbkit.io/parts/cj/LM317C)

Questions

Is there a KiCad symbol and footprint for the LM317C?

Yes. The symbol is EasyEDA_Cloud:LM317C_C5173769 and the footprint EasyEDA_Cloud:TO-263-2_L10.2-W8.7-P5.08-LS15.1-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LM317C?

SOT-223, with 3 pins. Its footprint is drawn on this page.

Where is the LM317C datasheet?

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

Where can I order the LM317C?

JLCPCB lists it as part C17722351, with 6,436 in stock; the sellers' links on this page open their listings.