REG1117FA-5.0KTTT Texas Instruments In Stock
REG1117FA-5.0KTTT is a 1A low-dropout (LDO) linear voltage regulator with a fixed 5.0V output by Texas Instruments. Key specs: 1A output current, 1.2V typical dropout voltage, SOT-223 package. Designed for post-regulation, battery-powered systems, and local regulation in consumer and industrial electronics.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $1.5600(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 5.0V output with ±1% accuracy over load and temperature
- Low dropout voltage of 1.2V typical at 1A output current
- 1A continuous output current capability
- SOT-223 surface-mount package for compact board designs
- Built-in thermal shutdown and current limiting protection
Applications
REG1117FA-5.0KTTT is well-suited for post-regulation applications where a stable 5.0V rail is required from a higher-voltage supply. It serves consumer electronics, IoT devices, and industrial control boards that demand low-noise, regulated power. The device is also used in battery-backed systems and portable instruments where minimizing dropout voltage is critical to extending operating time.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage of the REG1117FA-5.0KTTT?
The REG1117FA-5.0KTTT provides a fixed 5.0V output voltage with ±1% accuracy, making it suitable for powering digital logic, microcontrollers, and other 5V loads in both consumer and industrial applications.
What is the maximum output current the REG1117FA-5.0KTTT can supply?
This LDO regulator supports up to 1A of continuous output current. The 1.2V typical dropout voltage at full load means the input supply needs to be at least 6.2V to maintain regulation.
What package does the REG1117FA-5.0KTTT use and what are the mounting requirements?
The REG1117FA-5.0KTTT comes in a SOT-223 surface-mount package, which features a large thermal pad for improved heat dissipation. Standard reflow soldering is used; a PCB copper pour or small heatsink area is recommended when operating near maximum current.
What are common applications for the REG1117FA-5.0KTTT?
Typical applications include 5V post-regulation on power supply boards, local regulation for FPGAs and microcontrollers, battery-powered IoT devices, and industrial instrumentation requiring a clean, stable 5V rail.
Does the REG1117FA-5.0KTTT include protection features?
Yes. The device integrates thermal shutdown protection, which disables the output if the die temperature exceeds safe limits, and current limiting to protect against short-circuit conditions, ensuring reliable operation across a wide range of load scenarios.
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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.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $15.0000 | $15.00 |
| 2+ | $12.5000 | $25.00 |
| 3+ | $11.0000 | $33.00 |
| 130+ | $2.3000 | $299.00 |
| 500+ | $1.6600 | $830.00 |
| 1000+ | $1.5600 | $1560.00 |
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