| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| LM337LZ/LFT1 | Texas Instruments | Check for Price | Adjustable Negative Standard Regulator, -1.2V Min, -37V Max, BIPolar, PS3 | LM337LZ vs LM337LZ/LFT1 |
| LM337LZ/NOPB | National Semiconductor Corporation | Check for Price | Adjustable Negative Standard Regulator, 1.2V Min, 37V Max, BIPolar, PBCY3 | LM337LZ vs LM337LZ/NOPB |
| LM337LZ | National Semiconductor Corporation | Check for Price | Adjustable Negative Standard Regulator, 1.2V Min, 37V Max, BIPolar, PBCY3 | LM337LZ vs LM337LZ |
| LM337LZ/LFT3 | Texas Instruments | Check for Price | Adjustable Negative Standard Regulator, -37V Min, -1.2V Max, BIPolar, PBCY3 | LM337LZ vs LM337LZ/LFT3 |
Part Details for LM337LZ by Texas Instruments
Results Overview of LM337LZ by Texas Instruments
- Distributor Offerings: (1 listing)
- Number of FFF Equivalents: (4 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (6 options)
- CAD Models: (Available)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
LM337LZ Information
LM337LZ by Texas Instruments is a Linear Regulator IC.
Linear Regulator ICs are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
Price & Stock for LM337LZ
| Part # | Distributor | Description | Stock | Price | Buy | |
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Chip Stock | Standard Regulator Neg -37V to -1.2V 0.1A 3-Pin TO-92 Box | 3300 |
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RFQ |
US Tariff Estimator: LM337LZ by Texas Instruments
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
LM337LZ CAD Models
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LM337LZ Part Data Attributes
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LM337LZ
Texas Instruments
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Datasheet
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LM337LZ
Texas Instruments
Adjustable Negative Standard Regulator, 1.2V Min, 37V Max, BIPolar, PBCY3
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| Pbfree Code | No | |
| Part Life Cycle Code | Obsolete | |
| Part Package Code | TO-92 | |
| Package Description | To-92, 3 Pin | |
| Pin Count | 3 | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.60 | |
| Adjustability | Adjustable | |
| Dropout Voltage1-Nom | 3 V | |
| Input-Output Voltage Differential-Max | 40 V | |
| Input-Output Voltage Differential-Min | 3 V | |
| JESD-30 Code | O-PBCY-W3 | |
| JESD-609 Code | e0 | |
| Line Regulation-Max (%/V) | 0.07 | |
| Load Regulation-Max(%) | 1.5% | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Outputs | 1 | |
| Number of Terminals | 3 | |
| Operating Temperature TJ-Max | 125 °C | |
| Operating Temperature TJ-Min | -25 °C | |
| Output Current1-Max | 0.1 A | |
| Output Voltage1-Max | 37 V | |
| Output Voltage1-Min | 1.2 V | |
| Package Body Material | Plastic/Epoxy | |
| Package Code | TO-92 | |
| Package Equivalence Code | SIP3,.1,50 | |
| Package Shape | Round | |
| Package Style | Cylindrical | |
| Packing Method | Bulk | |
| Peak Reflow Temperature (Cel) | 260 | |
| Qualification Status | Not Qualified | |
| Regulator Type | Adjustable Negative Single Output Standard Regulator | |
| Surface Mount | No | |
| Technology | Bipolar | |
| Terminal Finish | Tin Lead | |
| Terminal Form | Wire | |
| Terminal Pitch | 1.27 Mm | |
| Terminal Position | Bottom | |
| Time@Peak Reflow Temperature-Max (s) | 40 |
Alternate Parts for LM337LZ
This table gives cross-reference parts and alternative options found for LM337LZ. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LM337LZ, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
LM337LZ Frequently Asked Questions (FAQ)
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The minimum input voltage required for the LM337LZ to operate is 3V above the output voltage. For example, if the output voltage is 5V, the minimum input voltage would be 8V.
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While the LM337LZ can handle up to 1.5A of output current, it's not recommended for high-current applications due to thermal limitations. For high-current applications, consider using a switching regulator or a more robust linear regulator like the LM338.
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To ensure stability, make sure to use a minimum output capacitance of 10uF, and consider adding a 1uF to 10uF capacitor between the input and output pins to improve transient response. Additionally, keep the input and output pins as close as possible to minimize inductance.
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Yes, the LM337LZ can be used in battery-powered devices, but be aware of the quiescent current (IQ) which is around 5mA. This can affect battery life, especially in low-power applications. Consider using a low-IQ regulator or a switching regulator for battery-powered devices.
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To protect the LM337LZ from input voltage surges or spikes, consider adding a transient voltage suppressor (TVS) diode or a voltage clamp circuit between the input pin and ground. This can help prevent damage to the regulator and ensure reliable operation.