REG1117-5 Texas Instruments In Stock
REG1117-5 is a 5V fixed-output LDO linear voltage regulator by Texas Instruments. Key specs: 800mA output current, 1.2V dropout voltage, SOT-223/TO-263 package. From $1.84, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $1.8436(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of REG1117-5?
- Fixed 5V output LDO regulator with tight ±1% output voltage accuracy
- 800mA output current capability for powering logic and peripheral circuits
- Low 1.2V dropout voltage enabling efficient regulation from 6.2V input
- Available in SOT-223 and TO-263 packages for flexible PCB layout
- Built-in overcurrent and thermal shutdown protection for robust operation
What is REG1117-5 used for?
REG1117-5 is widely used in embedded systems and microcontroller boards requiring a stable 5V supply rail from higher-voltage sources such as 7.5V to 12V adapters. It is ideal for powering USB interfaces, sensors, and logic circuits in industrial control, consumer electronics, and IoT devices. Its low dropout and high output current make it suitable for battery-powered portable applications where efficiency and reliability are critical.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for REG1117-5?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage and maximum output current of the REG1117-5?
The REG1117-5 provides a fixed 5V output voltage with a maximum output current of 800mA. It maintains output accuracy within ±1% over the full operating temperature range, making it suitable for precision 5V supply applications.
What is the minimum input voltage required for the REG1117-5 to regulate properly?
The REG1117-5 requires a minimum input voltage of 6.2V (5V output plus the 1.2V typical dropout voltage) to maintain regulation. For reliable operation with margin, an input voltage of 7V or higher is recommended, especially at full 800mA load current.
What packages are available for the REG1117-5?
The REG1117-5 is available in SOT-223 and TO-263 (D2PAK) surface-mount packages. Both packages provide good thermal dissipation; the TO-263 package offers a larger copper pad for improved heat sinking in high-current applications.
What are typical applications for the REG1117-5?
The REG1117-5 is commonly used in embedded systems, development boards, industrial controllers, consumer electronics, and IoT devices that require a reliable 5V power rail. It is well-suited for powering microcontrollers, sensors, USB logic circuitry, and other 5V peripherals from a higher-voltage DC source.
Does the REG1117-5 have built-in protection features?
Yes, the REG1117-5 includes built-in overcurrent protection and thermal shutdown circuitry. These features protect both the regulator and the load circuit from damage caused by short-circuit conditions or excessive power dissipation, enhancing system reliability.
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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.
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| 12+ | $1.9250 | $23.10 |
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| 5040+ | $1.8436 | $9291.69 |
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