onsemi LM317D2TR4G
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.40 | $1.40 |
| 15+ | $1.35 | $20.25 |
| 25+ | $1.32 | $33.00 |
| 50+ | $1.25 | $62.50 |
| 100+ | $1.10 | $110.00 |
| N+ | $0.22 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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 | 0°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-3, D2PAK (2 Leads + Tab), TO-263AB |
| Supplier Device Package | D2PAK-3 |
| ROHS |
The LM317D2TR4G from onsemi is a versatile adjustable linear regulator delivering 1.5A with an output range from 1.2V to 37V. Housed in a D2PAK-3 package, it offers excellent thermal performance for demanding applications. With a low quiescent current of 10mA and high PSRR, it ensures clean and stable power for audio, industrial, and consumer electronics.
- Wide Adjustable Range: Output from 1.2V to 37V provides flexibility for multiple applications without changing components.
- High Output Current: 1.5A capability supports power-hungry loads like motors and high-power LEDs.
- Excellent Noise Rejection: 80dB PSRR at 120Hz ensures clean output for sensitive analog circuits.
- Robust Package: D2PAK-3 allows efficient heat dissipation for reliable operation at high currents.
Adjustable Power Supplies
Use the LM317D2TR4G to create a variable bench power supply. Its 1.2V to 37V output range and 1.5A current capability make it ideal for prototyping and testing circuits.
Battery Chargers
Implement a constant-voltage/constant-current charger for lead-acid or lithium batteries. The adjustable output allows precise voltage setting for different battery chemistries.
Audio Amplifier Biasing
Provide a clean, regulated supply rail for audio preamplifiers. The high PSRR (80dB at 120Hz) minimizes hum and noise from the mains.
Industrial Sensor Power
Power 4-20mA loop transmitters and sensors with a stable voltage. The D2PAK package handles heat dissipation in industrial enclosures.
Laboratory Test Equipment
Build a precision voltage reference for calibration. The adjustable output and 1.5A drive make it versatile for various test setups.
LED Driver Circuits
Drive high-power LEDs with a constant voltage. The 1.5A current limit protects the LED from overcurrent conditions.
- Q: What is the output voltage range of the LM317D2TR4G?
- 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 40V (based on output voltage spec).
- 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: It is available in a D2PAK-3 package.
- Q: What is the output voltage range of the LM317D2TR4G?
- 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 40V (based on output voltage spec).
- 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: It is available in a D2PAK-3 package.

LM317D2TR4G.pdf