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Product details

Parameters

Output options Adjustable Output, Fixed Output Iout (Max) (A) 0.8 Vin (Max) (V) 15 Vin (Min) (V) 2.6 Vout (Max) (V) 13.8 Vout (Min) (V) 1.25 Fixed output options (V) 1.8, 2.5, 3.3, 5 Noise (uVrms) 38 Iq (Typ) (mA) 5 Thermal resistance θJA (°C/W) 24 Load capacitance (Min) (µF) 10 Rating Catalog Regulated outputs (#) 1 Features Accuracy (%) 3 PSRR @ 100 KHz (dB) 47 Dropout voltage (Vdo) (Typ) (mV) 1200 Operating temperature range (C) -40 to 125, 0 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

SOT-223 (DCY) 4 46 mm² 6.5 x 7 TO-220 (NDE) 3 47 mm² 10.16 x 4.58 TO-252 (NDP) 3 40 mm² 7.3 x 6.58 TO-263 (KTT) 3 155 mm² 10.16 x 15.24 WSON (NGN) 8 16 mm² 4 x 4 open-in-new Find other Linear regulators (LDO)

Features

  • For a newer drop-in alternative, see the TLV1117
  • Available in 1.8 V, 2.5 V, 3.3 V, 5 V, and Adjustable Versions
  • Space-saving SOT-223 and WSON packages
  • Current limiting and thermal protection
  • Output current: 800 mA
  • Line regulation: 0.2% (maximum)
  • Load regulation: 0.4% (maximum)
  • Temperature range:
    • LM1117: 0°C to 125°C
    • LM1117I: −40°C to 125°C

All trademarks are the property of their respective owners.

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Description

The LM1117 is a low dropout voltage regulator with a dropout of 1.2 V at 800 mA of load current.

The LM1117 is available in an adjustable version, which can set the output voltage from 1.25 to 13.8 V with only two external resistors. In addition, it is available in five fixed voltages, 1.8 V, 2.5 V, 3.3 V, and 5 V.

The LM1117 offers current limiting and thermal shutdown. Its circuit includes a Zener trimmed bandgap reference to assure output voltage accuracy to within ±1%.

A minimum of 10-µF tantalum capacitor is required at the output to improve the transient response and stability.

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Technical documentation

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Type Title Date
* Datasheet LM1117 800-mA, Low-Dropout Linear Regulator datasheet (Rev. O) Jun. 10, 2020
User guides MLTLDO2EVM-037 Evaluation Module User's Guide May 22, 2020
Application notes A Topical Index of TI LDO Application Notes (Rev. F) Jun. 27, 2019
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Selection guides Low Dropout Regulators Quick Reference Guide (Rev. P) Mar. 21, 2018
Application notes LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
Application notes Linear power for automated industrial systems Jan. 09, 2015
Application notes AN-1028 Maximum Power Enhancement Techniques for Power Packages (Rev. B) May 06, 2013
Application notes AN-103 LM340 Series Three Terminal Positive Regulators (Rev. A) May 06, 2013
Application notes AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) May 06, 2013
Application notes AN-181 3-Terminal Regulator is Adjustable (Rev. B) May 05, 2013
Application notes AN-182 Improving Power Supply Reliability with IC Power Regulators (Rev. B) May 05, 2013
Application notes Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A) May 05, 2013
Application notes AN-1482 LDO Regulator Stability Using Ceramic Output Capacitors (Rev. A) Apr. 25, 2013
Application notes Packaging Limits Range of Linear Regulators May 08, 2010
Application notes Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A) Jun. 04, 2008
White papers Versatility of the LM5030 PWM Push-Pull Controller Dec. 01, 2003
Application notes Understanding the Terms and Definitions of LDO Voltage Regulators Oct. 21, 1999

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description
DLP® LightCrafter Display 4710 EVM-G2 is an easy to use, plug and play evaluation platform for the Full HD DLP4710 chipset. The DLP4710 chipset is designed to be used in a wide array of display applications like mobile projectors, screenless TVs, interactive displays and digital signage. The DLP4710 (...)
Features
  • 1080p HD display using DLP4710
  • Digital controller for the DLP4710 DMD, DLPC3439
  • PMIC/LED driver for the DLP4710 DMD and DLPC3439 controller, DLPA3005
  • Production ready RGB LED optical engine from YoungOptics
  • DLP4710, DLPC3439 Configuration and Support Firmware
EVALUATION BOARDS Download
document-generic User guide
$29.00
Description

The MLTLDO2EVM-037 multipackage low-dropout (LDO) evaluation module (EVM) allows design engineers to evaluate the operation and performance of several common packages of linear regulators for possible use in their own circuit application. This EVM configuration contains a DDA, 3-pin and 5-pin KVU (...)

Features
  • Supports most LDO linear regulators in
    • DDA package
    • 3-pin and 5-pin KVU package
    • DCY package

Design tools & simulation

SIMULATION MODELS Download
SNOM479.ZIP (1 KB) - PSpice Model
SIMULATION MODELS Download
SNOM480.ZIP (59 KB) - PSpice Model
SIMULATION MODELS Download
SNOM481.ZIP (61 KB) - PSpice Model
SIMULATION MODELS Download
SNOM482.ZIP (1 KB) - PSpice Model
SIMULATION MODELS Download
SNOM483.ZIP (1 KB) - PSpice Model
SIMULATION MODELS Download
SNOM484.ZIP (56 KB) - PSpice Model
SIMULATION MODELS Download
SNOM485.ZIP (1 KB) - PSpice Model
SIMULATION MODELS Download
SNOM486.ZIP (57 KB) - PSpice Model
SIMULATION MODELS Download
SNOM487.ZIP (60 KB) - PSpice Model
SIMULATION MODELS Download
SNOM488.ZIP (1 KB) - PSpice Model
SIMULATION MODELS Download
SNOM556.ZIP (61 KB) - PSpice Model
SIMULATION MODELS Download
SNOM557.ZIP (1 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
260 W off-line multiple-output LLC-SRC reference design
PMP21582 — This reference design uses UCC256302 LLC resonant controller to provide US-line AC input to a 30-V, 250-W output and a 13.8-V, 11-W output conversion. The low profile design has a maximum height of 1 inch. This design achieves 94% peak efficiency at 120-VAC input.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Compact Full HD 1080p (up to 16 Amps) Projection Display Reference Design Using DLP Pico Technology
TIDA-01226 — This reference design, featuring the DLP Pico™ 0.47-inch TRP Full-HD 1080p display chipset and implemented in the DLP LightCrafter Display 4710 G2 evaluation module (EVM), enables use of full HD resolution for projection display applications such as accessory projectors, screenless displays (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
DDPAK/TO-263 (KTT) 3 View options
SOT-223 (DCY) 4 View options
TO-220 (NDE) 3 View options
TO-252 (NDP) 3 View options
WSON (NGN) 8 View options

Ordering & quality

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