Looking for Lm317 Regulator? LM317 Voltage Regulator IC (Pack of 2) is available at Zbotic with fast shipping across India.
Product Decription
- The LM317 is an adjustable positive-voltage regulator capable of delivering between 1.25 V and 37 V output voltage. It can provide over 1.5 A of current, with the output voltage settable via two external resistors. This device boasts a low line regulation of 0.01% and a low load regulation of 0.1%. Additionally, it includes safety features like current limiting, thermal overload protection, and safe operating area protection, which remain operational even without the ADJUST terminal connected.
Features
- Adjustable 3-terminal positive voltage regulator
- The output voltage can be set to range from 1.25V to 37V
- Output current is 1.5A
- Maximum Input to output voltage difference is 40V, recommended 15V
- Maximum output current when the voltage difference is 15V is 2.2A
- Operating junction temperature is 125°C
- Available in To-220, SOT223, TO263 Package
Pin Configuration:-
| Pin Number | Pen Name | Description |
| 1 | Adjust | This pin adjusts the output voltage |
| 2 | Output Voltage (Vout) | The regulated output voltage set by the adjust pin can be obtained from this pin |
| 3 | Input Voltage (Vin) | The input voltage which has to be regulated is given to this pin |
Specifications:
| Mounting Type | Through Hole |
|---|---|
| Product Series | LM317T |
| No. of Output | 1 |
| Output Type | Adjustable |
| Polarity | Positive |
| Input voltage | 3V to 40V |
| Output Voltage(V) | 1.2 ~ 37 |
| Max. Output Current (A) | 1.5 |
| Operating Temperature (°C) | 0 to 125 |
| Load Regulation | 0.1% |
| Line Regulation | 0.01% |
| Length (mm): | 29.1 |
| Width (mm): | 10 |
| Height (mm): | 4 |
| Weight (g): | 1 (approx) |
Applications:
- Power Bank Solutions
- Motor Controls
- Power Supply
- Desktop PCs
- DIY Prototyping
Package Includes
- 2 x LM317 Voltage Regulated IC
LM317 Voltage Regulator IC Overview
The LM317 Voltage Regulator IC (Pack of 2) is a versatile three-terminal adjustable positive-voltage regulator designed for precise voltage control in electronic circuits. Ideal for power supplies and DIY electronics, it delivers up to 1.5 A with output adjustable between 1.25 V and 37 V. Each regulator features built-in current limiting, thermal overload protection, and safe-area compensation to ensure reliable operation.
Key Features of LM317 Voltage Regulator IC
- Adjustable output voltage from 1.25 V to 37 V with two external resistors
- Maximum output current of 1.5 A for moderate power applications
- Low line regulation (0.01%) and low load regulation (0.1%) for stable performance
- Built-in current limiting and thermal overload protection for safety
- Safe-area protection ensures reliable operation under varying load conditions
- Pack of 2 genuine LM317 ICs with fast shipping from Zbotic
Applications and Use Cases
- Adjustable bench power supplies for electronics testing and prototyping
- Battery charger circuits with regulated voltage output
- LED driver circuits requiring constant voltage
- Current regulator configurations for sensor excitation
- Voltage references in precision measurement equipment
- DIY projects such as audio amplifiers and microcontroller power supplies
How to Use LM317 Voltage Regulator IC
To use the LM317, connect the input pin to a DC source at least 3 V above the desired output, and wire two resistors between the output and adjust pins to set the voltage. Attach a suitable heatsink to the tab to dissipate heat under load, and add input/output capacitors for stability. Adjust the resistor values to fine-tune the output voltage within the 1.25 V–37 V range.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
What input voltage range does the LM317 support?
The LM317 requires a minimum input-to-output differential of around 3 V. To achieve a stable output, supply an input voltage at least 3 V higher than your desired output, up to a maximum of 40 V.
How do I calculate the resistor values to set the output voltage?
Use the formula Vout = 1.25 V × (1 + R2/R1) + Iadj × R2. A common choice is R1 = 240 Ω; then R2 can be adjusted to achieve your target voltage. Refer to the LM317 datasheet for precise calculations.
Can the LM317 drive loads above 1.5 A?
The LM317 is specified for up to 1.5 A. Exceeding this current will trigger the internal current limiting. For higher currents, consider using an external pass transistor or a higher-current regulator.
Technical Specifications
| Model | LM317 |
|---|---|
| Package Quantity | 2 pcs |
| SKU | AI0273 |
| Weight | 0.0 kg |
| Availability | Out of Stock |
Applications & Use Cases
The LM317 Voltage Regulator IC (Pack of 2) is a versatile voltage regulator ics used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
- Integrating into a custom electronics project
- Learning and experimenting with circuits
- Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
Bharat Grewal (verified owner) –
Bought multiple units of this LM317 Voltage Regulator IC. All consistent quality. Zbotic is reliable.
Tarun Bajaj –
Nice LM317 Voltage Regulator IC. Works as expected for my power needs. Good efficiency.
Kavya Jain (verified owner) –
Average LM317 Voltage Regulator IC. Works but efficiency could be better. Adequate for basic projects.
Siddharth Rathore (verified owner) –
Outstanding! This LM317 Voltage Regulator IC supplies clean power to my sensitive circuits. No noise at all.
Deepika Iyer (verified owner) –
Average LM317 Voltage Regulator IC. Works but efficiency could be better. Adequate for basic projects.
Shreyas Sen (verified owner) –
Okay LM317 Voltage Regulator IC. Output is slightly off from specified but within usable range.
Aditi Garg (verified owner) –
Excellent LM317 Voltage Regulator IC! Output is stable and reliable. Perfect for my electronics project.
Vivek Panchal –
Excellent LM317 Voltage Regulator IC! Output is stable and reliable. Perfect for my electronics project.
Shreyas Kulkarni (verified owner) –
Good quality LM317 Voltage Regulator IC. Ripple is low. Suitable for most electronics projects.
Naman Sethi –
Excellent LM317 Voltage Regulator IC! Output is stable and reliable. Perfect for my electronics project.
Raushan baig (verified owner) –
Ok
Shubham Mehta (verified owner) –
Superb LM317 Voltage Regulator IC! Efficiency is high and it runs cool even under load.
Aayush Kumar (verified owner) –
Good
Varun Yadav (verified owner) –
Okay LM317 Voltage Regulator IC. Output is slightly off from specified but within usable range.
Gaurav Hegde –
Good LM317 Voltage Regulator IC. Output is stable. Gets slightly warm under full load but nothing concerning.
Kunal Verma (verified owner) –
Perfect LM317 Voltage Regulator IC for my portable project. Battery life is better than expected.
Hemant Menon (verified owner) –
Decent LM317 Voltage Regulator IC. Voltage output is accurate. Compact form factor is a plus.
Sachin Khurana (verified owner) –
Okay LM317 Voltage Regulator IC. Output is slightly off from specified but within usable range.
Raj Bhat (verified owner) –
Outstanding! This LM317 Voltage Regulator IC supplies clean power to my sensitive circuits. No noise at all.
Utkarsh Dave –
Love this LM317 Voltage Regulator IC. Compact size and excellent performance. Worth the price.
Raghav Das –
Outstanding! This LM317 Voltage Regulator IC supplies clean power to my sensitive circuits. No noise at all.
Prateek Mishra –
Good quality LM317 Voltage Regulator IC. Ripple is low. Suitable for most electronics projects.
Kiara Bhat (verified owner) –
Great quality LM317 Voltage Regulator IC. Powering my entire project board with this. Very reliable.
Darshan Pandey (verified owner) –
Good LM317 Voltage Regulator IC. Output is stable. Gets slightly warm under full load but nothing concerning.
Vijay Nayak –
This LM317 Voltage Regulator IC is reliable and efficient. Running my IoT setup 24/7 with no issues.
Zubin Bisht (verified owner) –
This LM317 Voltage Regulator IC is exactly what I needed. Output current capacity is as advertised.