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LD1117V on a board, in 3D

LD1117V

STMicroelectronics

0℃~+125℃ 1 1.25V~15V 1.2V@(800mA) 15V 5mA 75dB@(120Hz) 800mA Adjustable Over Current Protection、Thermal shutdown Positive TO-220 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS

Extended
DatasheetJLCPCBLCSCst/LD1117V
Category
Voltage Regulators Linear, Low Drop Out (LDO) Regulators
Package
TO-220
Pins
3

Overview

The LD1117V is a voltage Regulators Linear, Low Drop Out (LDO) Regulator made by STMicroelectronics in a TO-220 package with 3 pins. 0℃~+125℃ 1 1.25V~15V 1.2V@(800mA) 15V 5mA 75dB@(120Hz) 800mA Adjustable Over Current Protection、Thermal shutdown Positive TO-220 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.

PCBKit's library has its KiCad symbol (Regulator_Linear:LD1117V, from KiCad's library) and its footprint (Package_TO_SOT_THT:TO-220-3_Vertical, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C283384). 10 open-source boards in 8 repositories on GitHub use it.

Symbol

GND1VO2VI3
Regulator_Linear:LD1117VFrom KiCad's library

Footprint

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

Parameters

11
Features
Over Current Protection, Thermal shutdown
Number of Outputs
1
Operating Temperature
0℃~+125℃
Output Configuration
Positive
Output Current
800mA
Output Type
Adjustable
Output Voltage
1.25V~15V
Power Supply Rejection Ratio (PSRR)
75dB@(120Hz)
Voltage - Supply
15V
Voltage Dropout
1.2V@(800mA)
standby current
5mA

Order codes

1

Pinout

3
The pins of the LD1117V
PinNameType
1GNDPower in
2VOPower out
3VIPower in

Open-source boards using it

All 10
  • 2 layers50.5 × 86.3 mmF4 SMD V1 1, the printed circuit board in 3D

    F4 SMD V1 1

    androda/F4_BlueSCSI

    A small SCSI device based on STM32F4

    42 parts24
  • 2 layers152.9 × 74.9 mmClock, the printed circuit board in 3D

    Clock

    erikvanzijst/clock

    24H digital quartz clock from scratch

    82 parts21
  • 2 layers64 × 61.5 mmCarbonAwareCircuit, the printed circuit board in 3D

    CarbonAwareCircuit

    AbhiramV010/CarbonAwareCharge

    The Carbon-Aware Charging logic & KiCad Schematics that were used in my STEAM ICAC 2026 Project. It will work for other applications as well.

    15 parts1GPL-2.0
  • 4 layers74.9 × 62.2 mm1000W Controller, the printed circuit board in 3D

    1000W Controller

    benvrakas/1000W-LED-Controller

    61 parts1
  • 2 layersBreatheEasy, the printed circuit board in 3D

    BreatheEasy

    1440pQHD/One-board-Air-quality-sensor

    A simple, cheap-to-build PCB that actively monitors air quality and prevents invisible hazards. It makes protection from enviromental hazards accesible to everyone.

    12 parts
  • 2 layers86.5 × 99 mmPCB schematics, the printed circuit board in 3D

    PCB schematics

    Alemagpie/Teensy-based-Multieffect-Pedal

    49 parts
  • 2 layers33.2 × 36.7 mmS3DUCKY, the printed circuit board in 3D

    S3DUCKY

    himanivishwa/S3DUCKY

    A pocket-sized USB HID injection tool built on the ESP32-S3's native USB peripheral — no separate USB-serial or "Digispark"-style bootloader chip needed. Plug it in, and it enumerates as a keyboard.

    26 parts
  • 2 layers55.6 × 50.9 mmCanbus transeiver adapter, the printed circuit board in 3D

    Canbus transeiver adapter

    mbouyer/canbus_transeiver_adapter

    A breadboard-friendly CAN transeiver

    19 partsBSD-2-Clause

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Questions

Is there a KiCad symbol and footprint for the LD1117V?

Yes. The symbol is Regulator_Linear:LD1117V 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 LD1117V?

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

Where is the LD1117V datasheet?

STMicroelectronics publishes it: the Datasheet link on this page opens it.

Where can I order the LD1117V?

JLCPCB lists it as part C283384, with 0 in stock; the sellers' links on this page open their listings.

What can replace the LD1117V?

Parts like it in the library: the LM317 by Jiangsu Changjing Electronics Technology (CJ), the L7812CV-JSM by JSMSEMI, the LD1117V33 by STMicroelectronics and the LD1117V33C by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the LD1117V?

10 boards in 8 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8