LM138 - 5A Positive Adjustable Voltage Regulator

Most H (Metal Can), J (Ceramic), and K (Metal Can) Packages from Linear Technology Are Now Obsolete
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The LT138A series of adjustable Regulators provide 5A output current over an output voltage range of 1.2V to 32V. The internal Voltage Reference is trimmed to less than 1%, enabling a very tight output voltage. In addition to excellent line and load regulation, with full overload protection, the LT138A incorporates new current limiting circuitry allowing large transient load currents to be handled for short periods. Transient load currents of up to 12A CAN be supplied without limiting, eliminating the need for a large output capacitor.
The LT138A is an improved version of the popular LM138 with improved circuit design and advanced process techniques to provide superior performance and reliability.
The graph below shows the significant improvement in output voltage tolerance achieved by using the LT138A or LT338A.
By Linear Technology Corporation
Part Manufacturer Description Datasheet Samples
LM138K STEEL/NOPB Texas Instruments 5A Adjustable Output Linear Regulator / LDO in hermetic package 2-TO-3 -55 to 125
LM138K-MIL Texas Instruments 2-TO
LM138K STEEL Texas Instruments 5A Adjustable Output Linear Regulator / LDO in hermetic package 2-TO-3 -55 to 125
LM138KG-MD8 Texas Instruments 0-DIESALE -55 to 125
LM138KG-MW8 Texas Instruments 0-WAFERSALE -55 to 125
LM138 's PackagesLM138 's pdf datasheet

LM138 Pinout, Pinouts
LM138 pinout,Pin out
This is one package pinout of LM138,If you need more pinouts please download LM138's pdf datasheet.

LM138 Application circuits
LM138 circuits
This is one application circuit of LM138,If you need more circuits,please download LM138's pdf datasheet.

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