Texas Instruments LM337T/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 15+ | $1.79 | $26.85 |
| 25+ | $1.76 | $44.00 |
| 50+ | $1.66 | $83.00 |
| 100+ | $1.46 | $146.00 |
| N+ | $0.29 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| 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 | Through Hole |
| Package / Case | TO-220-3 |
| Supplier Device Package | TO-220-3 |
| ROHS |  |
The LM337T/NOPB is a versatile adjustable negative linear regulator from Texas Instruments, capable of delivering up to 1.5A of output current. Its output voltage can be precisely set from -1.2V to -37V using just two external resistors. Housed in a robust TO-220 package, it offers excellent power dissipation and thermal performance. With a high PSRR of 77dB at 120Hz, it ensures clean, ripple-free power for sensitive analog and audio applications.
- Wide Adjustable Range: Output from -1.2V to -37V provides maximum design flexibility for various negative rail requirements.
- High Output Current: 1.5A capability supports power-hungry loads without additional pass transistors.
- Excellent Ripple Rejection: 77dB PSRR at 120Hz ensures clean power for high-fidelity audio and precision instrumentation.
- Robust TO-220 Package: Facilitates easy heatsinking for reliable operation in high-power and high-temperature environments.
Adjustable Negative Power Supplies
The LM337T/NOPB is ideal for creating precision adjustable negative rails down to -37V, commonly needed in audio amplifiers, instrumentation, and industrial control systems where a stable negative supply is critical.
Audio Equipment Biasing
With a PSRR of 77dB at 120Hz, this regulator effectively filters out mains hum and ripple, making it excellent for powering op-amps and audio circuits that require a clean, low-noise negative supply.
Post-Regulation for Switching Converters
Use the LM337T/NOPB after a negative DC-DC converter to reduce output noise and ripple, providing a clean, linear-regulated output for sensitive analog loads.
Bench Power Supplies
Its 1.5A current capability and adjustable output make it a perfect building block for DIY and professional bench power supplies that need a versatile negative output channel.
Industrial Process Control
In industrial environments, the TO-220 package allows for easy heatsinking, enabling reliable operation in high-temperature conditions while providing a stable negative reference for sensors and transducers.
- Q: What is the output voltage range of the LM337T/NOPB?
- A: The LM337T/NOPB provides an adjustable negative output voltage from -1.2V down to -37V.
- Q: What is the maximum output current?
- A: The device can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from -1.2V to a maximum of -40V (absolute maximum).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 2V at maximum output current.
- Q: What is the package type?
- A: The LM337T/NOPB is available in a TO-220-3 package.
- Q: What is the PSRR performance?
- A: The PSRR is 77dB at 120Hz, providing excellent ripple rejection.
LM337T/NOPB.pdf
- Q: What is the output voltage range of the LM337T/NOPB?
- A: The LM337T/NOPB provides an adjustable negative output voltage from -1.2V down to -37V.
- Q: What is the maximum output current?
- A: The device can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from -1.2V to a maximum of -40V (absolute maximum).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 2V at maximum output current.
- Q: What is the package type?
- A: The LM337T/NOPB is available in a TO-220-3 package.
- Q: What is the PSRR performance?
- A: The PSRR is 77dB at 120Hz, providing excellent ripple rejection.
