Texas Instruments LM317KTTR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.74 | $0.74 |
| 15+ | $0.72 | $10.80 |
| 25+ | $0.70 | $17.50 |
| 50+ | $0.66 | $33.00 |
| 100+ | $0.59 | $59.00 |
| N+ | $0.12 | 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) | 1.25V |
| Voltage - Output (Max) | 37V |
| Voltage Dropout (Max) | - |
| Current - Output | 1.5A |
| Current - Quiescent (Iq) | 10 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 | TO-263-4, D2PAK (3 Leads + Tab), TO-263AA |
| Supplier Device Package | TO-263 (DDPAK-3) |
| ROHS |  |
The LM317KTTR from Texas Instruments is a versatile adjustable linear regulator delivering up to 1.5A with an output range of 1.25V to 37V. Its high PSRR and robust TO-263 package make it suitable for a wide range of power supply applications, from benchtop units to industrial controls.
- Adjustable Output: 1.25V to 37V range provides design flexibility.
- High Current: 1.5A output capability for demanding loads.
- Excellent Ripple Rejection: 80dB PSRR at 120Hz ensures clean output.
- Robust Package: TO-263 (DDPAK) for efficient heat dissipation.
Adjustable Power Supplies
The 1.25V to 37V output range makes it ideal for benchtop power supplies and variable voltage regulators in lab equipment.
High-Current LED Drivers
With 1.5A capability, it can drive high-power LEDs with a constant current configuration, ensuring stable brightness.
Audio Amplifier Power
High PSRR (80dB at 120Hz) reduces hum and ripple, providing clean DC rails for audio preamplifiers and small power amps.
Battery Chargers
Configure as a constant-current/constant-voltage charger for lead-acid or lithium batteries up to 1.5A.
Industrial Control Systems
Provides a stable, adjustable reference voltage for PLCs, motor controllers, and process control loops.
Test & Measurement Equipment
Precise adjustable output for calibration sources and signal conditioning circuits requiring a clean, variable supply.
- Q: What is the output voltage range?
- A: The output is adjustable from 1.25V to 37V.
- Q: What is the maximum output current?
- A: It can provide up to 1.5A.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly stated; the output can go up to 37V, so input must be higher.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What is the PSRR?
- A: PSRR is 80dB to 65dB at 120Hz.
- Q: What package is available?
- A: It is available in a TO-263 (DDPAK-3) package.
LM317KTTR.pdf
- Q: What is the output voltage range?
- A: The output is adjustable from 1.25V to 37V.
- Q: What is the maximum output current?
- A: It can provide up to 1.5A.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly stated; the output can go up to 37V, so input must be higher.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What is the PSRR?
- A: PSRR is 80dB to 65dB at 120Hz.
- Q: What package is available?
- A: It is available in a TO-263 (DDPAK-3) package.
