onsemi LM317MABTG
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.23 | $1.23 |
| 15+ | $1.19 | $17.85 |
| 25+ | $1.16 | $29.00 |
| 50+ | $1.10 | $55.00 |
| 100+ | $0.97 | $97.00 |
| N+ | $0.19 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | |
| Packaging | Factory | Tube |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 1.2V |
| Voltage - Output (Max) | 37V |
| Voltage Dropout (Max) | - |
| Current - Output | 500mA |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) | - |
| PSRR | 80dB ~ 65dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-3 |
| Supplier Device Package | TO-220 |
| ROHS |
The LM317MABTG from onsemi is a versatile, adjustable positive voltage regulator renowned for its simplicity and robustness. It delivers up to 500mA of output current with an output voltage range from 1.2V to 37V, set by just two external resistors. Housed in a durable TO-220 package, it includes internal current limiting, thermal overload protection, and safe area compensation, making it a reliable choice for a wide array of power supply applications.
- Versatile Adjustability: Output voltage can be set from 1.2V to 37V with just two resistors, offering maximum design flexibility.
- Robust Protection: Built-in current limiting and thermal overload protection safeguard the regulator and your circuit from damage.
- Excellent Ripple Rejection: High PSRR (80dB to 65dB at 120Hz) ensures a clean, stable output, ideal for audio and precision analog circuits.
- Industry-Standard Package: The TO-220 package is easy to mount on heatsinks for effective thermal management, even at higher current draws.
Adjustable Bench Power Supplies
The LM317MABTG's adjustable output from 1.2V to 37V makes it a classic choice for hobbyist and professional bench power supplies. Its 500mA current capability is sufficient for powering a wide range of electronic projects and circuits.
Constant Current LED Drivers
By configuring the LM317 as a constant current source with a single external resistor, it can drive high-brightness LEDs with a stable current, ensuring consistent luminosity and protecting the LEDs from current spikes.
Audio Amplifier Biasing
With its high PSRR of up to 80dB at 120Hz, this regulator effectively filters out mains hum and ripple, providing a clean and stable DC rail for audio preamplifiers and low-power amplifier stages.
Battery Charger Circuits
The adjustable voltage and current limiting features make it suitable for building simple, reliable chargers for lead-acid or NiMH batteries, ensuring they are charged safely without overvoltage.
General-Purpose Laboratory Instrumentation
Its robustness, thermal overload protection, and wide operating range make it a dependable choice for powering op-amp circuits, sensors, and other analog building blocks in test and measurement equipment.
- Q: What is the output voltage range of the LM317MABTG?
- A: It is an adjustable regulator with an output voltage range from 1.2V up to 37V.
- Q: What is the maximum output current?
- A: The LM317MABTG can provide up to 500mA of output current.
- Q: What is the input voltage requirement?
- A: The input voltage must be at least 1.2V higher than the desired output voltage.
- Q: What is the quiescent current?
- A: The typical quiescent current is 10 mA.
- Q: What is the PSRR performance?
- A: It offers a PSRR of 80dB to 65dB at 120Hz, depending on the output voltage setting.
- Q: What package is available?
- A: This device is available in the industry-standard TO-220 package.
- Q: What is the output voltage range of the LM317MABTG?
- A: It is an adjustable regulator with an output voltage range from 1.2V up to 37V.
- Q: What is the maximum output current?
- A: The LM317MABTG can provide up to 500mA of output current.
- Q: What is the input voltage requirement?
- A: The input voltage must be at least 1.2V higher than the desired output voltage.
- Q: What is the quiescent current?
- A: The typical quiescent current is 10 mA.
- Q: What is the PSRR performance?
- A: It offers a PSRR of 80dB to 65dB at 120Hz, depending on the output voltage setting.
- Q: What package is available?
- A: This device is available in the industry-standard TO-220 package.

LM317MABTG.pdf