onsemi LM317BTG
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.33 | $1.33 |
| 15+ | $1.29 | $19.35 |
| 25+ | $1.26 | $31.50 |
| 50+ | $1.19 | $59.50 |
| 100+ | $1.05 | $105.00 |
| N+ | $0.21 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | |
| Packaging | 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 | 1.5A |
| 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 |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-3 |
| Supplier Device Package | TO-220 |
| ROHS |
The onsemi LM317BTG is a high-current adjustable linear regulator in a TO-220 package. It delivers up to 1.5A with an output voltage adjustable from 1.2V to 37V. This regulator offers excellent power supply rejection, making it suitable for audio and precision applications. Its robust TO-220 package ensures superior thermal performance for demanding power management tasks.
- High Output Current: The 1.5A capability supports a wide range of power-hungry applications, from amplifiers to industrial controls.
- Wide Adjustable Range: The 1.2V to 37V output provides maximum flexibility, reducing the need for multiple fixed regulators.
- Excellent PSRR: With 80dB to 65dB rejection at 120Hz, it ensures clean power for sensitive audio and measurement circuits.
- Robust TO-220 Package: The package offers excellent heat dissipation, enabling reliable operation at high currents and temperatures.
High-Current Adjustable Power Supply
The LM317BTG's 1.5A output capability makes it ideal for building a robust bench power supply. It can power a wide range of loads, from small logic circuits to motors and high-power LEDs.
Battery Charger for Lead-Acid Batteries
By setting the output voltage appropriately, this regulator can be used as a simple constant-voltage charger for 6V or 12V lead-acid batteries. The 1.5A current is suitable for charging smaller batteries.
Audio Amplifier Power Supply
With a high PSRR of 80dB to 65dB at 120Hz, the LM317BTG can provide a clean, low-noise supply rail for audio amplifiers. Its higher current capacity supports power-hungry amplifier stages.
Industrial Motor Control
In industrial settings, this regulator can power control circuits for motors and actuators. The TO-220 package ensures adequate heat dissipation for continuous operation at higher currents.
Laboratory Test Equipment
For precise and adjustable test setups, the LM317BTG offers a reliable and accurate voltage source. Its wide range and high current make it a versatile tool for engineers.
Solar-Powered Systems
In off-grid solar systems, this LDO can regulate the voltage from a solar panel to charge batteries or power DC loads. Its efficiency and robustness are well-suited for outdoor conditions.
- Q: What is the output voltage range of the LM317BTG?
- A: The output voltage is adjustable from 1.2V up to 37V.
- Q: What is the maximum output current?
- A: The maximum output current is 1.5A.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.2V up to 37V.
- Q: What is the dropout voltage?
- A: The dropout voltage is not specified in the provided data.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What package is available?
- A: The LM317BTG is available in a TO-220 package.
- Q: What is the output voltage range of the LM317BTG?
- A: The output voltage is adjustable from 1.2V up to 37V.
- Q: What is the maximum output current?
- A: The maximum output current is 1.5A.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.2V up to 37V.
- Q: What is the dropout voltage?
- A: The dropout voltage is not specified in the provided data.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What package is available?
- A: The LM317BTG is available in a TO-220 package.

LM317BTG.pdf