Texas Instruments LM337KTTR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.27 | $2.27 |
| 15+ | $2.20 | $33.00 |
| 25+ | $2.15 | $53.75 |
| 50+ | $2.03 | $101.50 |
| 100+ | $1.79 | $179.00 |
| N+ | $0.36 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Negative |
| 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 | 1.5A |
| Current - Quiescent (Iq) | - |
| Current - Supply (Max) | - |
| PSRR | 77dB (120Hz) |
| Control Features | - |
| Protection Features | 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 LM337KTTR is a versatile adjustable negative linear regulator from Texas Instruments, delivering up to 1.5A of output current. Its output can be set from -1.2V to -37V using two external resistors, providing flexibility for a wide range of applications. Housed in a robust TO-263 (DDPAK-3) package, it offers excellent thermal performance and a high PSRR of 77dB at 120Hz, ensuring clean, stable negative power rails.
- High Output Current: 1.5A capability supports demanding loads in industrial and audio applications.
- Wide Adjustable Range: Output from -1.2V to -37V offers design flexibility for various negative supply requirements.
- Excellent PSRR: 77dB at 120Hz effectively rejects ripple, ensuring clean power for sensitive analog circuits.
- Robust Package: TO-263 (DDPAK-3) provides superior heat dissipation for reliable operation.
Negative Power Supply for Audio Amplifiers
The LM337KTTR provides a clean negative rail with 77dB PSRR at 120Hz, minimizing hum and noise in audio preamplifiers and op-amp circuits.
Adjustable Negative Bias Supply
With an adjustable output from -1.2V to -37V, this regulator is ideal for biasing RF amplifiers, photodiodes, or LCD contrast circuits requiring precise negative voltages.
Industrial Sensor Power
In industrial control systems, the 1.5A current capability supports multiple sensors and transducers needing a stable negative reference.
Test & Measurement Equipment
The low output noise and high PSRR make it suitable for precision instrumentation where a clean negative supply is critical for measurement accuracy.
Bipolar Power Supply for Op-Amps
Paired with a positive LDO like the LM317, the LM337KTTR creates a symmetrical ± supply for high-performance operational amplifiers in data acquisition systems.
- Q: What is the output voltage range of the LM337KTTR?
- A: The LM337KTTR is an adjustable negative LDO regulator with an output voltage range from -1.2V to -37V.
- Q: What is the maximum output current?
- A: The maximum output current is 1.5A.
- Q: What is the input voltage range?
- A: The input voltage range is from -1.2V to -37V (absolute maximum).
- Q: What is the dropout voltage?
- A: The dropout voltage is not specified in the provided data.
- Q: What is the package type?
- A: The LM337KTTR comes in a TO-263 (DDPAK-3) package.
- Q: What is the PSRR performance?
- A: The PSRR is 77dB at 120Hz.
LM337KTTR.pdf
- Q: What is the output voltage range of the LM337KTTR?
- A: The LM337KTTR is an adjustable negative LDO regulator with an output voltage range from -1.2V to -37V.
- Q: What is the maximum output current?
- A: The maximum output current is 1.5A.
- Q: What is the input voltage range?
- A: The input voltage range is from -1.2V to -37V (absolute maximum).
- Q: What is the dropout voltage?
- A: The dropout voltage is not specified in the provided data.
- Q: What is the package type?
- A: The LM337KTTR comes in a TO-263 (DDPAK-3) package.
- Q: What is the PSRR performance?
- A: The PSRR is 77dB at 120Hz.
