Texas Instruments LM337H
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $60.92 | $60.92 |
| 15+ | $20.36 | $305.40 |
| 25+ | $19.92 | $498.00 |
| 50+ | $18.81 | $940.50 |
| 100+ | $16.60 | $1,660.00 |
| N+ | $3.32 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Bulk | |
| 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 | 500mA |
| Current - Quiescent (Iq) | - |
| Current - Supply (Max) | - |
| PSRR | 60dB (120Hz) |
| Control Features | - |
| Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | -55°C ~ 150°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-205AD, TO-39-3 Metal Can |
| Supplier Device Package | TO-3 |
| ROHS |  |
The LM337H is a negative adjustable linear regulator from National Semiconductor, offering an output range of -1.2V to -37V with a maximum current of 500mA. Its TO-39-3 metal package ensures reliable thermal management, while the 60dB PSRR at 120Hz provides clean negative rails for audio and instrumentation. This regulator is ideal for bipolar supplies and precision negative voltage applications.
- Negative Adjustable Output: -1.2V to -37V range enables versatile negative rail designs.
- Compact TO-39 Package: Metal can construction offers low thermal resistance and EMI shielding.
- Stable 60dB PSRR: Reduces ripple from switching supplies and mains noise.
- 500mA Current Capability: Suitable for most analog and mixed-signal loads.
Negative Rail Power Supply
Generate a clean -5V or -12V rail for op-amp circuits and audio equipment. The 60dB PSRR at 120Hz minimizes mains hum.
Bipolar Power Supply
Pair with a positive regulator like the LM317 to create a symmetrical ±15V supply for analog signal processing and instrumentation.
LCD Bias Supply
Provide a negative bias voltage for LCD displays and CCD sensors. The adjustable output allows fine-tuning to match panel requirements.
Precision Current Sink
Configure the LM337H as a constant current sink for LED drivers or battery discharge testing. The 500mA rating handles moderate loads.
Audio Preamplifier Supply
Power negative supply rails in high-end audio preamps. The TO-39 metal package reduces noise coupling compared to plastic packages.
Industrial Control Systems
Regulate negative supply voltages in PLC and motor control circuits, ensuring stable operation in noisy industrial environments.
- Q: What is the output voltage range of the LM337H?
- A: The output voltage is adjustable from -1.2V to -37V.
- Q: What is the maximum output current?
- A: The maximum output current is 500mA.
- Q: What is the input voltage range?
- A: The input voltage must be at least -1.2V below the output, with a maximum of -37V.
- Q: What is the dropout voltage?
- A: Dropout voltage is not specified in the provided data; typical for this series is around 2V at 500mA.
- Q: What is the PSRR?
- A: The power supply rejection ratio is 60dB at 120Hz.
- Q: What package is available?
- A: The LM337H is available in a TO-39-3 package.
LM337H.pdf
- Q: What is the output voltage range of the LM337H?
- A: The output voltage is adjustable from -1.2V to -37V.
- Q: What is the maximum output current?
- A: The maximum output current is 500mA.
- Q: What is the input voltage range?
- A: The input voltage must be at least -1.2V below the output, with a maximum of -37V.
- Q: What is the dropout voltage?
- A: Dropout voltage is not specified in the provided data; typical for this series is around 2V at 500mA.
- Q: What is the PSRR?
- A: The power supply rejection ratio is 60dB at 120Hz.
- Q: What package is available?
- A: The LM337H is available in a TO-39-3 package.
