National Semiconductor LM337LZ
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $94,999.99 | $94,999.99 |
| 15+ | $91,999.99 | $1,379,999.85 |
| 25+ | $89,999.99 | $2,249,999.75 |
| 50+ | $84,999.99 | $4,249,999.50 |
| 100+ | $74,999.99 | $7,499,999.00 |
| N+ | $15,000.00 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | | |
| Output Configuration | Active |
| Output Type | Negative |
| Number of Regulators | Adjustable |
| Voltage - Input (Max) | -40V |
| Voltage - Output (Min/Fixed) | -1.2V |
| Voltage - Output (Max) | -37V |
| Voltage Dropout (Max) | - |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 5 mA |
| Current - Supply (Max) | - |
| PSRR | 80dB ~ 65dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -25°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-226-3, TO-92-3 (TO-226AA) |
| Supplier Device Package | TO-92-3 |
The National Semiconductor LM337LZ is an adjustable negative linear regulator capable of outputting voltages down to -37V at up to 100mA. It offers excellent PSRR of 80dB to 65dB at 120Hz, ensuring clean power for analog circuits. The TO-92-3 package is compact and suitable for low-power, through-hole designs. Its adjustable output makes it versatile for various negative supply applications.
- Adjustable Output: Output voltage can be set from -1.2V to -37V using external resistors, offering design flexibility.
- High PSRR: 80dB to 65dB at 120Hz ensures low noise, ideal for audio and precision analog circuits.
- Compact TO-92 Package: Small footprint suitable for space-constrained, low-power designs.
- Negative Output Capability: Provides a regulated negative rail, essential for dual-supply systems.
Adjustable Negative Bias Supply
The LM337LZ provides an adjustable negative output down to -37V, making it ideal for biasing avalanche photodiodes or tuning varactor diodes in RF circuits.
Audio Preamplifier Negative Rail
With 80dB PSRR at 120Hz, it delivers a clean, adjustable negative rail for audio preamps, reducing hum and noise in sensitive audio paths.
Laboratory Power Supply
In benchtop power supplies, the LM337LZ can be used as a precision negative reference, adjustable via external resistors, for testing and calibration.
Sensor Excitation
For sensors requiring a negative excitation voltage, this regulator provides a stable, adjustable output, ensuring accurate measurements.
Op-Amp Dual Supply
When paired with a positive regulator, the LM337LZ creates a dual supply for op-amps, with adjustable negative voltage to match the positive rail.
Battery Charger Control
In negative-ground battery charging circuits, it can provide a regulated negative reference for charge control ICs.
- Q: What is the output voltage of the LM337LZ?
- A: The LM337LZ is an adjustable negative regulator with an output range down to -37V.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA of output current.
- Q: What is the input voltage range?
- A: The input voltage is -1.2V (minimum), but the full range is not specified in the provided data.
- Q: What is the quiescent current?
- A: The quiescent current is 5 mA, typical for adjustable regulators.
- Q: What is the PSRR?
- A: The PSRR is 80dB to 65dB at 120Hz, depending on output voltage setting.
- Q: What package is available?
- A: It is available in a TO-92-3 through-hole package, suitable for low-power applications.
LM337LZ.pdf
- Q: What is the output voltage of the LM337LZ?
- A: The LM337LZ is an adjustable negative regulator with an output range down to -37V.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA of output current.
- Q: What is the input voltage range?
- A: The input voltage is -1.2V (minimum), but the full range is not specified in the provided data.
- Q: What is the quiescent current?
- A: The quiescent current is 5 mA, typical for adjustable regulators.
- Q: What is the PSRR?
- A: The PSRR is 80dB to 65dB at 120Hz, depending on output voltage setting.
- Q: What package is available?
- A: It is available in a TO-92-3 through-hole package, suitable for low-power applications.
