LM317 Voltage Regulator IC SOT-223 40V 1.5A – 10 Pack
LM317 Voltage Regulator IC SOT-223 40V 1.5A – 10 Pack
LM317 Three-Terminal Voltage Regulator – 10-Piece Pack (SOT-223)
Get reliable, stable voltage regulation with this 10-pack of LM317 Integrated Circuit Chips in the compact SOT-223 package. Rated at 40V and 1.5A, these versatile three-terminal adjustable regulators are a staple for electronics engineers, hobbyists, and makers working on power supply circuits, battery chargers, LED drivers, and more.
Key Features
- Pack of 10 – Great value for prototyping, repairs, and bulk builds
- 40V Maximum Input Voltage – Wide input range for flexible circuit design
- 1.5A Output Current – Handles a broad range of low-to-mid power applications
- SOT-223 Package – Surface-mount format with excellent thermal dissipation
- Three-Terminal Adjustable Design – Output voltage easily set with two external resistors
- New Condition – Fresh, unused ICs ready for immediate use
- No High-Concern Chemicals – RoHS-compliant, safe for professional and hobby use
Specifications
- IC Model: LM317
- Package Type: SOT-223
- Maximum Input Voltage: 40V
- Output Current: 1.5A
- Type: Three-Terminal Adjustable Voltage Regulator
- Quantity: 10 PCS
- Condition: New
- Made in: Mainland China
Common Applications
- Adjustable DC power supplies
- Battery charging circuits
- LED current regulation
- Signal conditioning and reference voltage generation
- Arduino, Raspberry Pi, and other microcontroller projects
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Frequently Asked Questions
Q: What is the LM317 SOT-223 voltage regulator used for?
A: The LM317 is a popular adjustable three-terminal voltage regulator IC used in DC power supplies, battery chargers, LED drivers, and countless electronics projects. In the SOT-223 package, it offers a compact surface-mount footprint with good thermal performance, making it ideal for modern PCB designs.
Q: How do I set the output voltage on the LM317?
A: The output voltage of the LM317 is set using two external resistors connected between the adjustment pin, output pin, and ground. By choosing the right resistor values, you can dial in a precise output voltage between approximately 1.25V and 37V, depending on your input voltage.
Q: Are these LM317 chips new and genuine?
A: Yes. All 10 chips in this pack are in new, unused condition. They are rated at 40V input and 1.5A output and contain no high-concern chemicals, making them safe for professional and hobbyist electronics work.
Q: Is the SOT-223 package suitable for through-hole or surface-mount PCBs?
A: The SOT-223 is a surface-mount (SMD) package. It is designed for use on surface-mount PCBs. If you need a through-hole version, look for the LM317 in TO-220 or similar packages instead.