

LM1117DT-ADJ
Texas Instruments
0℃~+125℃@(Tj) 1 1.25V~13.8V 1.2V@(800mA) 15V 5mA 75dB@(120Hz) 800mA Adjustable Over Current Protection、Over Temperature Protection Positive TO-252 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS
- Category
- Voltage Regulators Linear, Low Drop Out (LDO) Regulators
- Package
- TO-252
- Pins
- 3
Overview
The LM1117DT-ADJ is a voltage Regulators Linear, Low Drop Out (LDO) Regulator made by Texas Instruments in a TO-252 package with 3 pins. 0℃~+125℃@(Tj) 1 1.25V~13.8V 1.2V@(800mA) 15V 5mA 75dB@(120Hz) 800mA Adjustable Over Current Protection、Over Temperature Protection Positive TO-252 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.
PCBKit's library has its KiCad symbol (Regulator_Linear:LM1117DT-ADJ, from KiCad's library) and its footprint (Package_TO_SOT_SMD:TO-252-3_TabPin2, from KiCad's library), ready for a KiCad board. 51 are in stock at JLCPCB (part C2863814). 7 open-source boards in 7 repositories on GitHub use it.
Symbol
Footprint
Parameters
15- Dropout Voltage
- 1.3V@(800mA)
- Feature
- Overcurrent Protection;Overheat protection
- Features
- Thermal shutdown
- Maximum Input Voltage
- 15V
- Number of Outputs
- 1
- Operating Temperature
- 0℃~+125℃@(Tj)
- Output Configuration
- Positive
- Output Current
- 800mA
- Output Polarity
- Positive electrode
- Output Type
- Adjustable
- Output Voltage
- 1.25V~13.8V
- Power Supply Rejection Ratio (PSRR)
- 75dB@(120Hz)
- Voltage - Supply
- 15V
- Voltage Dropout
- 1.2V@(800mA)
- standby current
- 5mA
Order codes
2- LM1117DT-ADJ/NOPBLCSC C2863814
- LM1117DT-ADJLCSC C3750367
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | ADJ | Input |
| 2 | VO | Power out |
| 3 | VI | Power in |
Open-source boards using it
All 7- 2 layers118 × 70 mm

- 2 layers57.1 × 59.6 mm

WalkieTalkie
zmuhammad07/Walky_Talky
Walky-Talky — LoRa voice communication system built on STM32 with a custom KiCad PCB. Features I2S digital mic input (INMP441), Codec2 voice compression (96kbps → 1.2kbps), RYLR998 LoRa RF at 915MHz, 12-bit DAC audio…
49 parts1MIT - 2 layers69 × 37.9 mm

- 2 layers79.5 × 46.5 mm

- 2 layers145 × 60 mm

BT BAT CNTLR
NateJ892/bluetooth-battery-system
TODO: - Upsize regulator - Add USB protection IC - Increase Connector Current to 1.5A each for "Fast Charging"
89 parts - 2 layers77 × 42.5 mm

- 2 layers88.3 × 97.8 mm

Starter
L0czek/rakieta
The starter board provides the ignition impulse to fire the engine. It includes an I2C IO expander and an 8-channel digital comparator to require a correct safety byte/address to be present before firing.
45 parts
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<iframe src="https://pcbkit.io/embed/parts/ti/LM1117DT-ADJ" title="LM1117DT-ADJ in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/LM1117DT-ADJ.jpg" alt="LM1117DT-ADJ" width="1200" height="900">[](https://pcbkit.io/parts/ti/LM1117DT-ADJ)Questions
Is there a KiCad symbol and footprint for the LM1117DT-ADJ?
Yes. The symbol is Regulator_Linear:LM1117DT-ADJ and the footprint Package_TO_SOT_SMD:TO-252-3_TabPin2, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the LM1117DT-ADJ?
TO-252, with 3 pins. Its footprint is drawn on this page.
Where is the LM1117DT-ADJ datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the LM1117DT-ADJ?
JLCPCB lists it as part C2863814, with 51 in stock; the sellers' links on this page open their listings.
What can replace the LM1117DT-ADJ?
Parts like it in the library: the AMS1117CD-3.3 by Advanced Monolithic Systems, the LD39150DT33-R by STMicroelectronics, the LM1117IDTX-5.0 by Texas Instruments and the AMS1117CD-5.0 by Advanced Monolithic Systems. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the LM1117DT-ADJ?
7 boards in 7 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
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