TAEJIN LM317RS
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.07 | $1.07 |
| 15+ | $0.25 | $3.75 |
| 25+ | $0.24 | $6.00 |
| 50+ | $0.23 | $11.50 |
| 100+ | $0.20 | $20.00 |
| N+ | $0.04 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | TAEJIN |
| Product Series | |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 3V |
| Current - Output | 1.5A |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) | - |
| PSRR | 65dB (120Hz) |
| Control Features | - |
| Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | - |
| Supplier Device Package | TO-252-3L |
| ROHS |  |
The LM317RS is a versatile adjustable linear regulator delivering up to 1.5A of output current. With a 1.25V reference voltage, the output can be set from 1.25V to 37V using external resistors. It features a 3V dropout and 65dB PSRR at 120Hz, making it suitable for audio and precision analog applications. The TO-252-3L package offers good thermal performance for medium-power designs.
- Adjustable Output: 1.25V reference allows flexible output voltage setting with two resistors.
- High Current: 1.5A output capability supports power-hungry loads.
- Good Noise Rejection: 65dB PSRR at 120Hz reduces ripple for clean analog supplies.
- Robust Package: TO-252-3L (DPAK) provides efficient heat dissipation for continuous operation.
Adjustable Power Supplies
The 1.25V reference and 1.5A capability allow building a versatile bench power supply with output from 1.25V to 37V using two external resistors.
LED Driver Circuits
Configured as a constant current source, the LM317RS can drive high-power LEDs up to 1.5A with stable current regulation, ideal for lighting systems.
Battery Chargers
With adjustable output, it can be set to charge 12V lead-acid or Li-ion batteries with a constant voltage/current profile, delivering up to 1.5A.
Audio Amplifier Power Rails
The 65dB PSRR at 120Hz helps reduce hum in audio preamplifiers, providing a clean adjustable supply for op-amp circuits.
Industrial Sensor Conditioning
Provides a stable adjustable rail for sensor bridges and signal conditioning circuits, with the TO-252 package handling moderate power dissipation.
- Q: What is the output voltage of the LM317RS?
- A: The LM317RS is an adjustable regulator with a reference voltage of 1.25V; output voltage is set by external resistors.
- 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 not specified in the provided data; refer to the datasheet for absolute maximum ratings.
- Q: What is the dropout voltage?
- A: The dropout voltage is 3V (typical at maximum output current).
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What package is available?
- A: The LM317RS is available in a TO-252-3L (DPAK) package.
LM317RS.pdf
- Q: What is the output voltage of the LM317RS?
- A: The LM317RS is an adjustable regulator with a reference voltage of 1.25V; output voltage is set by external resistors.
- 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 not specified in the provided data; refer to the datasheet for absolute maximum ratings.
- Q: What is the dropout voltage?
- A: The dropout voltage is 3V (typical at maximum output current).
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What package is available?
- A: The LM317RS is available in a TO-252-3L (DPAK) package.
