Texas Instruments LM317LCD
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.92 | $0.92 |
| 15+ | $0.89 | $13.35 |
| 25+ | $0.87 | $21.75 |
| 50+ | $0.82 | $41.00 |
| 100+ | $0.73 | $73.00 |
| N+ | $0.15 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| 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 | 0°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 LM317LCD from Texas Instruments is a versatile adjustable linear regulator delivering up to 100mA with an output voltage range up to 32V. Its low quiescent current and excellent PSRR make it a reliable choice for noise-sensitive applications. Housed in a compact 8-SOIC package, it is designed for efficient thermal performance and space-constrained PCB layouts.
- High Ripple Rejection: 80dB PSRR at 120Hz ensures clean, stable output for audio and precision analog circuits.
- Low Quiescent Current: 2.5mA quiescent current minimizes power loss, ideal for battery-powered designs.
- Wide Output Range: Adjustable up to 32V provides design flexibility for various voltage requirements.
- Compact SOIC Package: Saves board space while maintaining thermal performance for low-power applications.
Precision Adjustable Power Supplies
Use the LM317LCD to create a precise, adjustable voltage reference for lab equipment or benchtop power supplies. Its 32V output capability and 80dB PSRR ensure stable, low-noise performance.
Battery-Powered Devices
With a low quiescent current of 2.5mA, this LDO is suitable for battery-operated circuits where extending battery life is critical, such as portable sensors and handheld instruments.
Audio Equipment Biasing
The high PSRR (80dB at 120Hz) makes it ideal for audio preamplifiers and DACs, effectively rejecting power supply hum and ripple for cleaner sound.
Industrial Control Loops
In industrial settings, the LM317LCD can provide a stable reference voltage for analog control loops, ensuring consistent operation despite input variations.
Post-Regulation for Switching Supplies
Place the LM317LCD after a DC-DC converter to reduce output ripple and noise, providing a clean supply rail for sensitive analog ICs.
- Q: What is the output voltage range of the LM317LCD?
- A: The LM317LCD provides an adjustable output voltage up 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 range starts from 1.2V.
- Q: What is the quiescent current?
- A: The quiescent current is 2.5 mA.
- Q: What is the package type?
- A: The LM317LCD is available in an 8-SOIC package.
- Q: What is the PSRR performance?
- A: The PSRR is 80dB to 65dB at 120Hz.
LM317LCD.pdf
- Q: What is the output voltage range of the LM317LCD?
- A: The LM317LCD provides an adjustable output voltage up 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 range starts from 1.2V.
- Q: What is the quiescent current?
- A: The quiescent current is 2.5 mA.
- Q: What is the package type?
- A: The LM317LCD is available in an 8-SOIC package.
- Q: What is the PSRR performance?
- A: The PSRR is 80dB to 65dB at 120Hz.
