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HomeCommunitySubjectLM1117T Low Drop-out Regulator: LM1117T 3.3V Pinout, Circuit and Datasheet pdf

LM1117T Low Drop-out Regulator: LM1117T 3.3V Pinout, Circuit and Datasheet pdf

PMIC - Voltage Regulators - Linear TO-220-3 0°C~125°C LM1117 1 % Over Current, Over Temperature 75dB (120Hz) 5mA LM1117-3.3 IC REG LINEAR 3.3V 800MA TO220-3

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Nov 30, 2021

Sophia Harrison

Tutorial of 1117, 3.3V Voltage Regulator IC

PMIC - Voltage Regulators - Linear TO-220-3 0°C~125°C LM1117 1 % Over Current, Over Temperature 75dB (120Hz) 5mA LM1117-3.3 IC REG LINEAR 3.3V 800MA TO220-3

The LM1117T is a low dropout voltage regulator with a dropout of 1.2 V at 800 mA of load current. This article is going to introduce pinout, datasheet, circuit, schematic, and other details about the LM1117T voltage regulator.

LM1117T-3.3

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What is LM1117T?

The LM1117T  is a low dropout voltage regulator with a dropout of 1.2V at 800mA of load current. The LM1117T  comes in an adjustable variant that allows you to modify the output voltage from 5 to 13.8 volts with only two external resistors. It's also available with a set voltage of 5V. Current limiting and thermal shutdown are features of the LM1117T,  A zener trimmed bandgap reference is used in the circuit to ensure output voltage accuracy to within 1%. The LM1117T  is available in D-PAK packages TO-220.

 

LM1117T Pinout

Pin No Pin Name
1 INPUT
2 OUTPUT
3 ADJ/GND

LM1117T CAD Model

LM1117T Symbol

 

LM1117T Footprint

 

LM1117T 3D Model

Specifications

NA LM1117T-3.3 technical specifications, attributes, parameters and parts with similar specifications to NA LM1117T-3.3.

LM1117T-3.3 Tech Specifications

HGSEMI LM1117T-3.3 technical specifications, attributes, parameters and parts with similar specifications to HGSEMI LM1117T-3.3.

Product Attribute Attribute Value
Package / CaseTO-220
Product Attribute Attribute Value
PackagingTube-packed
Product Attribute Attribute Value
RoHS StatusRoHS Compliant
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LM1117T Features

  • Current Limiting and Thermal Protection

  • Output Current 800mA

  • Temperature Range 0˚C to 125˚C

  • Line Regulation 0.2% (Max)

  • Load Regulation 0.4% (Max)

  • Available in 1.8 V, 2.5 V, 3.3 V, 5 V

 

LM1117T Block Diagram

LM1117T Block Diagram

LM1117T Application Circuit

The following is the circuit of adjustable output regulator:

LM1117T Adjustable Output Regulator

Equivalents for LM1117T

LM117V33, LM317, LM7805, LM7806, LM7809, LM7812, LM7905, LM7912

LM1117T Dimensions

 

LM1117T Manufacturer

As a global semiconductor company operating in 35 countries, Texas Instruments (TI) is first and foremost a reflection of its people. From the TIer who unveiled the first working integrated circuit in 1958 to the more than 30,000 TIers around the world today who design, manufacture and sell analog and embedded processing chips, we are problem-solvers collaborating to change the world through technology.

Datasheet PDF

Download datasheets and manufacturer documentation for NA LM1117T-3.3.

LM1117T-3.3 Documents

Download datasheets and manufacturer documentation for LM1117T-3.3

Frequently Asked Questions

What type of regulator is an LM1117T IC?
The LM1117T is a low dropout voltage regulator with a dropout of 1.2 V at 800 mA of load current. The LM1117T is available in an adjustable version, which can set the output voltage from 1.25 to 13.8 V with only two external resistors.
What is the relationship between the voltages of the output and adjust pins of the LM1117T when in normal operation?
The LM1117T adjustable version develops a 1.25V reference voltage, VREF, between the output and the adjust terminal.
Is LM1117T good?
The LM1117T has a drop-out voltage of 1.2 volts at 800ma meaning you must provide 1.2 more volts than you are outputting. Overall, the LM1117T is a super easy-to-use, high-quality voltage regulator that should be found in every electrical engineer and hobbyist’s toolbox.
FAQ
What type of regulator is an LM1117T IC?
The LM1117T is a low dropout voltage regulator with a dropout of 1.2 V at 800 mA of load current. The LM1117T is available in an adjustable version, which can set the output voltage from 1.25 to 13.8 V with only two external resistors.
What is the relationship between the voltages of the output and adjust pins of the LM1117T when in normal operation?
The LM1117T adjustable version develops a 1.25V reference voltage, VREF, between the output and the adjust terminal.
Is LM1117T good?
The LM1117T has a drop-out voltage of 1.2 volts at 800ma meaning you must provide 1.2 more volts than you are outputting. Overall, the LM1117T is a super easy-to-use, high-quality voltage regulator that should be found in every electrical engineer and hobbyist’s toolbox.

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