Texas Instruments LM317LZ/LFT3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.30 | $1.30 |
| 15+ | $0.29 | $4.35 |
| 25+ | $0.29 | $7.25 |
| 50+ | $0.27 | $13.50 |
| 100+ | $0.24 | $24.00 |
| N+ | $0.05 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tape & Box (TB) | Cut Tape (CT) |
| 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 | 100mA |
| Current - Quiescent (Iq) | 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 | Through Hole |
| Package / Case | TO-226-3, TO-92-3 (TO-226AA) |
| Supplier Device Package | TO-92-3 |
| ROHS |  |
The LM317LZ/LFT3 from Texas Instruments is a versatile adjustable linear regulator offering an output voltage range from 1.2V to 37V. Capable of delivering up to 100mA, it comes in a compact TO-92-3 package. With a quiescent current of 5mA and excellent PSRR of 80dB at 120Hz, it provides clean, stable power for a wide range of applications.
- Adjustable Output: Set any voltage from 1.2V to 37V with two external resistors, offering design flexibility.
- High Ripple Rejection: 80dB PSRR at 120Hz ensures clean power for sensitive analog circuits.
- Compact Package: The TO-92-3 package is ideal for space-constrained designs.
- Proven Technology: Based on the industry-standard LM317 architecture, ensuring reliability and availability.
Adjustable Power Supply
Use the LM317LZ/LFT3 to create a precise, adjustable voltage source for benchtop or embedded applications. Its 1.2V to 37V output range and 100mA current capability make it ideal for powering op-amps, sensors, and microcontrollers.
Battery-Powered Devices
With a low quiescent current of 5mA, this regulator is suitable for battery-operated equipment where power efficiency is critical. It maintains a stable output as the battery voltage declines.
Precision Reference
The LM317LZ/LFT3 can be configured as a precision voltage reference for ADC circuits or comparator thresholds. Its adjustable output allows for exact voltage setting.
Localized Regulation
In mixed-signal PCBs, use this LDO to provide a clean, regulated supply rail for analog sections, isolating them from digital noise. The 80dB PSRR at 120Hz helps filter ripple.
Current Limiting
Configure the LM317LZ/LFT3 as a constant current source for LED drivers or battery chargers. The adjustable output and built-in current limiting provide a simple, robust solution.
- Q: What is the output voltage range of the LM317LZ/LFT3?
- 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 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.2V up to 37V.
- Q: What is the quiescent current?
- A: The quiescent current is 5 mA.
- Q: What is the package type?
- A: The device comes in a TO-92-3 package.
- Q: What is the PSRR performance?
- A: The PSRR is 80dB to 65dB at 120Hz.
LM317LZ/LFT3.pdf
- Q: What is the output voltage range of the LM317LZ/LFT3?
- 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 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.2V up to 37V.
- Q: What is the quiescent current?
- A: The quiescent current is 5 mA.
- Q: What is the package type?
- A: The device comes in a TO-92-3 package.
- Q: What is the PSRR performance?
- A: The PSRR is 80dB to 65dB at 120Hz.
