onsemi LM317BD2TG
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.31 | $1.31 |
| 15+ | $1.27 | $19.05 |
| 25+ | $1.24 | $31.00 |
| 50+ | $1.17 | $58.50 |
| 100+ | $1.04 | $104.00 |
| 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 | Surface Mount |
| Package / Case | TO-263-3, D2PAK (2 Leads + Tab), TO-263AB |
| Supplier Device Package | D2PAK-3 |
| ROHS |  |
The LM317BD2TG from onsemi is a classic adjustable linear regulator offering 1.5A output current and a wide 1.2V to 37V output range. Its robust D2PAK package handles significant power dissipation, while the 80dB PSRR at 120Hz ensures clean output for audio and precision applications. The adjustable nature provides design flexibility for a wide variety of power supply needs.
- Adjustable Output (1.2V to 37V): Provides maximum design flexibility for various voltage requirements.
- High Output Current (1.5A): Suitable for powering demanding loads and multiple circuits.
- Excellent PSRR (80dB @ 120Hz): Effectively filters mains ripple for clean DC output.
- Robust D2PAK Package: Handles high power dissipation with excellent thermal performance.
Adjustable Power Supplies
The 1.2V to 37V adjustable output makes it a versatile building block for benchtop supplies, lab equipment, and custom power rails.
High-Current LED Drivers
With 1.5A capability, it can drive high-power LEDs with a constant voltage, using an external resistor to set current.
Audio Amplifier Power
The high PSRR (80dB at 120Hz) reduces hum and noise for audio preamplifiers and small power amplifiers.
Battery Chargers
Can be configured as a constant-voltage/constant-current charger for lead-acid or lithium batteries.
Industrial Control Systems
Provides a stable, adjustable reference for PLCs, motor controllers, and process instrumentation.
Test and Measurement Equipment
Precise adjustable output is ideal for calibration sources and signal conditioning circuits.
- Q: What is the output voltage range?
- A: The output is adjustable from 1.2V to 37V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage can range from 3V to 40V (max).
- Q: What is the quiescent current?
- A: The quiescent current is typically 10mA.
- Q: What is the PSRR?
- A: PSRR is 80dB at 120Hz.
- Q: What package is available?
- A: It comes in a D2PAK-3 (TO-263) package.
LM317BD2TG.pdf
- Q: What is the output voltage range?
- A: The output is adjustable from 1.2V to 37V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage can range from 3V to 40V (max).
- Q: What is the quiescent current?
- A: The quiescent current is typically 10mA.
- Q: What is the PSRR?
- A: PSRR is 80dB at 120Hz.
- Q: What package is available?
- A: It comes in a D2PAK-3 (TO-263) package.
