Texas Instruments LM317LIDR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.27 | $0.27 |
| 15+ | $0.26 | $3.90 |
| 25+ | $0.25 | $6.25 |
| 50+ | $0.24 | $12.00 |
| 100+ | $0.21 | $21.00 |
| N+ | $0.04 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 38V |
| Voltage - Output (Min/Fixed) | 1.2V |
| Voltage - Output (Max) | 32V |
| Voltage Dropout (Max) | - |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 2.5 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 | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| ROHS |
The LM317LIDR from Texas Instruments is a versatile adjustable linear voltage regulator capable of delivering up to 100mA of output current with an output voltage range from 1.2V to 32V. It features a low quiescent current of 2.5mA and excellent power supply rejection ratio (80dB at 120Hz), making it suitable for noise-sensitive applications. The device comes in a compact 8-SOIC package, ideal for space-constrained designs. Typical applications include adjustable power supplies, battery-powered equipment, and industrial control systems.
- Adjustable Output (1.2V to 32V): Provides design flexibility for various voltage requirements.
- Low Quiescent Current (2.5mA): Helps extend battery life in portable applications.
- High PSRR (80dB at 120Hz): Ensures clean power for sensitive analog circuits.
- Wide Input Voltage Range: Supports a variety of input sources from batteries to industrial rails.
Adjustable Power Supplies for Lab Equipment
The LM317LIDR's adjustable output from 1.2V to 32V makes it ideal for benchtop power supplies and test equipment where precise voltage setting is required.
Battery-Powered Devices
With a low quiescent current of 2.5mA, this regulator helps extend battery life in portable instruments and remote sensors.
Audio and Signal Conditioning Circuits
Its high PSRR (80dB at 120Hz) ensures clean, ripple-free power for audio preamplifiers and precision analog circuits.
Industrial Control Systems
The wide input voltage range and robust SOIC package make it suitable for industrial controllers operating from 24V rails.
Automotive Electronics
Although not explicitly rated for automotive, the LM317LIDR can be used in non-critical automotive applications where a stable adjustable rail is needed.
Prototyping and Education
Its simplicity and adjustability make it a staple for hobbyists and educational labs building custom power supplies.
- Q: What is the output voltage range of the LM317LIDR?
- A: The LM317LIDR is an adjustable linear regulator with an output voltage range from 1.2V to 32V.
- Q: What is the maximum output current?
- A: The maximum output current is 100mA.
- Q: What is the input voltage range?
- A: The input voltage can range from 1.2V up to 32V (maximum input-to-output differential).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1.7V at full load (not explicitly provided, typical for LM317 family).
- Q: What is the quiescent current?
- A: The quiescent current is typically 2.5mA.
- Q: What package is available?
- A: The LM317LIDR is available in an 8-pin SOIC package.
- Q: What is the output voltage range of the LM317LIDR?
- A: The LM317LIDR is an adjustable linear regulator with an output voltage range from 1.2V to 32V.
- Q: What is the maximum output current?
- A: The maximum output current is 100mA.
- Q: What is the input voltage range?
- A: The input voltage can range from 1.2V up to 32V (maximum input-to-output differential).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1.7V at full load (not explicitly provided, typical for LM317 family).
- Q: What is the quiescent current?
- A: The quiescent current is typically 2.5mA.
- Q: What package is available?
- A: The LM317LIDR is available in an 8-pin SOIC package.

LM317LIDR.pdf