LM1117IDT-3.3/NOPB Texas Instruments Integrated Circuit (TO-XXX (Inc. DPAK)) In Stock
LM1117IDT-3.3/NOPB is an 800mA low-dropout linear voltage regulator with a fixed 3.3V output, 1.2V typical dropout voltage, and internal current limiting for overcurrent protection. Ideal for powering microcontrollers, FPGAs, and sensitive analog circuits. From $1.01, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- TO-XXX (Inc. DPAK)
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- LM1117IDT-3.3/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0100(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.3V output with tight ±1% initial accuracy over line and load conditions
- 800mA continuous output current with internal current limit protection
- Ultra-low 1.2V typical dropout voltage enabling efficient low-voltage regulation
- Wide input voltage range from 4.75V to 15V (20V absolute max)
- SOT-223 (TO-XXX/DPAK) package for excellent thermal dissipation in compact designs
Applications
The LM1117IDT-3.3/NOPB is widely used to regulate 3.3V power rails in embedded systems, microcontrollers, and FPGA boards where stable low-noise supply is critical. It suits portable consumer electronics, IoT devices, and communication modules that step down from a 5V or higher bus rail. Its low dropout and current-limiting features also make it a reliable choice for battery-powered applications and post-regulator stages in industrial control systems.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 1.4V |
| Dropout Voltage1-Nom | 1.2V |
| Input Voltage Absolute-Max | 20V |
| Input Voltage-Max | 15V |
| Input Voltage-Min | 4.75V |
| JESD-30 Code | R-PSSO-G2 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.006% |
| Load Regulation-Max | 0.01% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.8A |
| Output Voltage1-Max | 3.432V |
| Output Voltage1-Min | 3.168V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP3H,.38,90TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 2.285mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 2% |
| ## LM1117IDT-3.3/NOPB Alternates Showing results | Image |
| Package | TO-XXX (Inc. DPAK) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM1117IDT-3.3/NOPB:
suggested
suggested
suggested
suggested
suggested
Regulator, 3.3V, 1.4V Dropout, BIPolar, PSSO3
Regulator, 3.3V, 1.4V Dropout, BIPolar, PSSO2
Frequently Asked Questions
What is the output voltage and maximum output current of the LM1117IDT-3.3/NOPB?
The LM1117IDT-3.3/NOPB provides a fixed 3.3V output with a maximum continuous output current of 800mA. The output accuracy is ±1% under typical line and load conditions, making it suitable for precision digital and analog circuits.
What input voltage range does the LM1117IDT-3.3/NOPB support?
The device supports an input voltage range from 4.75V to 15V, with an absolute maximum of 20V. The typical dropout voltage is 1.2V (maximum 1.4V), so a minimum input of approximately 4.5V is needed to maintain 3.3V regulation at full load.
What are typical applications for the LM1117IDT-3.3/NOPB?
Common applications include 3.3V power supply rails for microcontrollers (e.g., STM32, Arduino), FPGAs, Wi-Fi/Bluetooth modules, and sensor boards. It is also used in USB-powered devices, IoT nodes, and portable instruments that require a stable low-dropout regulated supply.
What package does the LM1117IDT-3.3/NOPB use, and is it RoHS compliant?
The LM1117IDT-3.3/NOPB comes in a SOT-223 (3-pin, TO-XXX/DPAK family) surface-mount package, which provides good thermal performance on a PCB. The part is fully RoHS compliant and REACH compliant, making it suitable for lead-free manufacturing environments.
Are there pin-compatible alternatives or substitutes for the LM1117IDT-3.3/NOPB?
Yes, pin-compatible alternatives in the SOT-223 package include the AMS1117-3.3, AP1117-33, and LD1117S33TR from various manufacturers. These parts share the same pinout and similar electrical characteristics (800mA, 3.3V fixed), allowing drop-in replacement in most designs.
Related Guides
150141RS73100 Red LED Indicator and Current-Resistor Design Guide
Design a reliable 150141RS73100 red LED indicator with worst-case resistor sizing, GPIO checks, PWM drive, layout, and production validation.
Jul 11, 2026
742792651 Ferrite Bead EMI Filter and Power Integrity Design Guide
Practical guidance for using 742792651 in ferrite-bead EMI filters, including bias, DCR, damping, layout, and validation.
Jul 11, 2026
How to Choose a Ferrite Bead for EMI Suppression Rails: Selection Guide
Compare 742792651 and related ferrite beads by impedance, current rating, DCR, package, layout, and EMI test context.
Jul 10, 2026
150141BS73100 Design Guide for 3528 Status Indicator LED Circuits
Design 3528 status indicator LED circuits with 150141BS73100: current setting, resistor sizing, polarity, optics, and sourcing checks.
Jul 10, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.4085 | $1.41 |
| 5+ | $1.2958 | $6.48 |
| 10+ | $1.2300 | $12.30 |
| 20+ | $1.1268 | $22.54 |
| 25+ | $1.0700 | $26.75 |
| 40+ | $1.0100 | $40.40 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”