Texas Instruments LM317LZ/LFT7
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.67 | $0.67 |
| 15+ | $0.64 | $9.60 |
| 25+ | $0.63 | $15.75 |
| 50+ | $0.60 | $30.00 |
| 100+ | $0.53 | $53.00 |
| N+ | $0.11 | 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) | 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 is a classic adjustable linear regulator from Texas Instruments, offering 1.2V to 37V output at up to 100mA. With excellent 80dB PSRR and a simple TO-92 package, it remains a versatile choice for adjustable power applications.
- Adjustable Output: 1.2V to 37V range provides design flexibility.
- High PSRR: 80dB at 120Hz eliminates mains hum in audio applications.
- Proven Reliability: Industry-standard design with decades of field use.
- Simple Implementation: Requires only two resistors to set output voltage.
Adjustable Bench Power Supplies
The 1.2V to 37V adjustable range makes it perfect for hobbyist and lab power supplies requiring variable output.
Battery Chargers
Can be configured as a constant-voltage/current-limited charger for lead-acid or lithium batteries.
Audio Preamplifier Supplies
With 80dB PSRR at 120Hz, it provides clean power for audio circuits, reducing hum and noise.
Sensor Excitation
Provides stable adjustable voltage for bridge sensors and transducers in industrial measurement systems.
Reference Voltage Sources
Used as a precision adjustable reference in calibration equipment and test fixtures.
LED Drivers
Can drive LEDs with constant voltage or current-limited operation for lighting applications.
- Q: What is the output voltage range?
- A: The LM317LZ is adjustable from 1.2V to 37V using external resistors.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA.
- Q: What is the input voltage range?
- A: Input voltage can range from 3V to 40V, depending on output settings.
- Q: What is the dropout voltage?
- A: Dropout is typically 3V at maximum load (not specified in provided data; typical for LM317 family).
- Q: What is the quiescent current?
- A: Quiescent current is approximately 5mA.
- Q: What package is available?
- A: It comes in a TO-92-3 package.
LM317LZ/LFT7.pdf
- Q: What is the output voltage range?
- A: The LM317LZ is adjustable from 1.2V to 37V using external resistors.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA.
- Q: What is the input voltage range?
- A: Input voltage can range from 3V to 40V, depending on output settings.
- Q: What is the dropout voltage?
- A: Dropout is typically 3V at maximum load (not specified in provided data; typical for LM317 family).
- Q: What is the quiescent current?
- A: Quiescent current is approximately 5mA.
- Q: What package is available?
- A: It comes in a TO-92-3 package.
