REG113EA-3.3/250 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The REG113EA-3.3/250 is a fixed 3.3V, 400mA low-noise, low-dropout linear voltage regulator from Texas Instruments with a typical dropout voltage of 0.25V (maximum 0.41V). It accepts input voltages from 3.7V to 10V and is housed in an 8-pin SOIC package, making it ideal for noise-sensitive analog and RF supply rail applications in portable and battery-powered systems.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- REG113EA-3.3/250 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.3V output LDO regulator with 400mA output current capability
- Ultra-low dropout: 0.25V typical, 0.41V maximum for efficient regulation
- Low-noise design optimized for sensitive analog and RF power rails
- Input voltage range: 3.7V to 10V (absolute max 12V)
- 8-pin SOIC (S-PDSO-G8) package for surface-mount assembly
- RoHS and REACH compliant, lead-free construction
Applications
The REG113EA-3.3/250 is used to power RF transceiver modules, analog-to-digital converters, precision sensors, and other noise-sensitive analog circuitry in portable electronics, wireless communication devices, and battery-powered IoT nodes. Its low dropout and low output noise make it particularly well suited for supplying clean power to RF front-ends and high-resolution ADC reference circuits in space-constrained designs.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.41V |
| Dropout Voltage1-Nom | 0.25V |
| Input Voltage Absolute-Max | 12V |
| Input Voltage-Max | 10V |
| Input Voltage-Min | 3.7V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.099% |
| Load Regulation-Max | 0.099% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 85°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.4A |
| Output Voltage1-Max | 3.399V |
| Output Voltage1-Min | 3.201V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | NMOS |
| Terminal Finish | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 2.3% |
| Package | Small Outline Packages |
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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of the REG113EA-3.3/250?
The REG113EA-3.3/250 has a typical dropout voltage of 0.25V and a maximum dropout voltage of 0.41V at full load. This very low dropout means the input supply only needs to be about 3.55V to 3.71V to maintain a regulated 3.3V output, making it highly efficient for battery-powered designs with a lithium-ion or Li-polymer single cell source.
What output current does the REG113EA-3.3/250 support?
The REG113EA-3.3/250 provides up to 400mA of output current at its fixed 3.3V regulated output. This current level is suitable for powering microcontrollers, Bluetooth/Wi-Fi modules, RF transceivers, and other moderate-current digital and analog loads in embedded and wireless IoT applications.
Why is the REG113EA-3.3/250 suitable for noise-sensitive applications?
The REG113EA-3.3/250 is specifically designed as a low-noise LDO regulator, featuring low output noise voltage and high power supply rejection ratio (PSRR). These characteristics prevent switching noise and ripple from upstream converters from appearing on the regulated output rail, making it ideal for powering sensitive RF circuits, ADCs, DACs, and precision analog front-ends that would otherwise be degraded by noisy power supplies.
What input voltage range does the REG113EA-3.3/250 accept?
The REG113EA-3.3/250 accepts an input voltage from 3.7V to 10V in normal operation, with an absolute maximum rating of 12V. The /250 suffix indicates a 250mA current limit variant, and the 3.3 indicates the fixed output voltage. This input range covers single-cell lithium battery outputs (3.7V–4.2V), 5V USB rails, and 9V/12V wall adapters.
Related Guides
TPS613222ADBVR Boost Converter Design Guide: Battery-Powered 3.3 V Rail
Design a stable 3.3 V or 5 V boost rail with the TPS613222ADBVR: input/output capacitor sizing, inductor selection, and low-EMI PCB layout for portable battery-powered devices.
May 24, 2026
OPA4277MDTEP Precision Instrumentation Amp Design Guide
Circuit techniques for OPA4277MDTEP precision op-amp: instrumentation amp front-ends, low-side current sensing, photodiode TIA, and thermocouple amplifiers.
May 24, 2026
CDCE913PWR Programmable Clock Synthesizer Design Guide
Complete design guide for the CDCE913PWR clock synthesizer: VCO range, I2C programming, decoupling, and layout best practices for embedded systems.
May 22, 2026
OPA4277MDTEP Precision Quad Op-Amp Selection Guide: How to Choose the Right Variant
How to choose the right OPA4277 quad precision op-amp variant—OPA4277MDTEP vs UA—covering offset voltage, CMRR, supply range, and temperature grade.
May 22, 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.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”