STMicroelectronics LM337SP
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.50 | $1.50 |
| 15+ | $0.98 | $14.70 |
| 25+ | $0.96 | $24.00 |
| 50+ | $0.91 | $45.50 |
| 100+ | $0.80 | $80.00 |
| N+ | $0.16 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| 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 ~ 60dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | 0°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-3 |
| Supplier Device Package | TO-220 |
| ROHS |  |
The LM337SP from STMicroelectronics is an adjustable negative linear regulator capable of delivering up to 1.5A. The output voltage can be set from -1.2V to -37V using two external resistors. Housed in a TO-220 package, it offers excellent thermal performance and high PSRR (77dB at 120Hz). It is a versatile solution for negative power supply requirements in audio, industrial, and test applications.
- Adjustable Output: Set any negative voltage from -1.2V to -37V with external resistors.
- High Current: 1.5A output capability for demanding loads.
- Excellent PSRR: 77dB at 120Hz rejects mains ripple for clean audio.
- Robust Package: TO-220 allows easy heatsinking for high-power applications.
Negative Audio Supply Rails
Provides a clean -12V or -15V rail for op-amps and audio preamplifiers, with 77dB PSRR at 120Hz to minimize hum.
Bipolar Power Supplies
Paired with a positive regulator (e.g., LM317), it creates a symmetrical ±15V supply for analog circuits and data acquisition systems.
LCD Bias Supplies
Generates negative bias voltages for LCD panels in industrial displays and projectors, adjustable to match panel requirements.
Test Equipment Calibration
Used in benchtop power supplies and calibrators to provide a precise negative reference voltage.
Telecom Line Drivers
Powers negative supply rails for DSL line drivers and interface transceivers requiring -5V or -12V.
Automotive Sensor Interfaces
Provides negative bias for certain pressure sensors and accelerometers in automotive test systems.
- Q: What is the output voltage of the LM337SP?
- A: It is an adjustable negative regulator with an output range from -1.2V to -37V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A.
- Q: What is the input voltage range?
- A: The input voltage must be at least -1.2V below the desired output, with a maximum input of -40V.
- Q: What is the dropout voltage?
- A: Dropout is typically 2V (not specified in the provided data, but standard for this family).
- Q: What is the quiescent current?
- A: The quiescent current is typically 1.5mA (not specified in provided data, but standard).
- Q: What package is available?
- A: It comes in a TO-220 package.
LM337SP.pdf
- Q: What is the output voltage of the LM337SP?
- A: It is an adjustable negative regulator with an output range from -1.2V to -37V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A.
- Q: What is the input voltage range?
- A: The input voltage must be at least -1.2V below the desired output, with a maximum input of -40V.
- Q: What is the dropout voltage?
- A: Dropout is typically 2V (not specified in the provided data, but standard for this family).
- Q: What is the quiescent current?
- A: The quiescent current is typically 1.5mA (not specified in provided data, but standard).
- Q: What package is available?
- A: It comes in a TO-220 package.
