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LM337LZ

Texas Instruments
Part Number LM337LZ
Manufacturer Texas Instruments
Description 3-Terminal Adjustable Regulator
Published Dec 2, 2021
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM337L SNVS780E – MAY 1998 – R...
Datasheet PDF File LM337LZ PDF File

LM337LZ
LM337LZ

Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM337L SNVS780E – MAY 1998 – REVISED DECEMBER 2016 LM337L 3-Terminal Adjustable Regulator 1 Features •1 Adjustable Output Down to 1.
2 V • Ensured 100-mA Output Current • Line Regulation Typically 0.
01%/V • Load Regulation Typically 0.
1% • Current Limit Constant With Temperature • Eliminates the Need to Stock Many Voltages • Standard 3-Pin Transistor Package • 80-dB Ripple Rejection • Output is Short Circuit Protected 2 Applications • Industrial Power Supplies • Factory Automation Systems • Building Automation Systems • PLC Systems • Instrumentation • IGBT Drive Negative Gate Supplies • Networking • Set-Top Boxes 3 Description The LM337L is an adjustable 3-pin negative voltage regulator capable of supplying 100 mA over a –1.
2-V to –37-V output range.
The LM337L is easy to use and requires only two external resistors to set the output voltage.
Both line and load regulation are better than standard fixed regulators.
The LM337L is packaged in a standard, easy-to-use TO-92 transistor package.
In addition to higher performance than fixed regulators, the LM337L offers full overload protection.
Included on the chip are current limit, thermal overload protection, and safe area protection.
All overload protection circuitry remains fully functional even if the adjustment pin is disconnected.
Normally, only a single 1-µF solid tantalum output capacitor is required unless the device is situated more than 6 inches from the input filter capacitors, in which case an input bypass is required.
A larger output capacitor can be added to improve transient response.
The adjustment pin can be bypassed to achieve very high ripple rejection ratios, which are difficult to achieve with standard 3-pin regulators.
Besides replacing fixed regulators, the LM337L is useful in a wide variety of other applications.
Because the regulator is floating and monitors only the inputto-output differential voltage, su...


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