LM137K/883

Description：IC REG LINEAR NEG ADJ 1.5A TO3
Series：-
Mfr：Texas Instruments
Package：Tray

SKU:1f97a60701f0 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR NEG ADJ 1.5A TO3
Series：-
Mfr：Texas Instruments
Package：Tray
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：1.5A
Current - Quiescent (Iq)：-
Current - Supply (Max)：-
PSRR：77dB ~ 60dB (120Hz)
Control Features：-
Protection Features：Over Current, Over Temperature
Operating Temperature：-55°C ~ 150°C
Mounting Type：Through Hole
Package / Case：TO-204AA, TO-3
Supplier Device Package：TO-3
Grade：-
Qualification：-

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LM137K/883

Overview

The LM137K/883 is a high-reliability adjustable negative voltage regulator manufactured by Texas Instruments. It provides an output voltage range from -1.2 V to -37 V with a maximum output current of 1 A. The device features internal current limiting, thermal overload protection, and safe operating area protection. It is housed in a metal can TO-3 package (MBFM3) designed for military and aerospace applications requiring robust performance under extreme conditions.

Feature Summary

Adjustable negative voltage regulation capability
Integrated short-circuit and thermal protection mechanisms
High-reliability metal can packaging

Applications

Military electronic systems
Aerospace power supplies
Harsh environment instrumentation

Procurement Notes

Verify the specific suffix and manufacturer source carefully. Ensure compliance with required reliability standards such as MIL-STD or space-grade certifications if applicable to the target application. Confirm that the TO-3 package dimensions match the mechanical constraints of the design.

Selection Notes

Select this component when high reliability and radiation hardness are critical requirements. Consider the TO-3 package size and mounting requirements. Evaluate thermal management needs due to the metal case construction. Compare against standard commercial variants if environmental extremes are not present.

Part Context

This part belongs to the LM137/LM337 family of adjustable negative regulators. It shares functional similarities with the LM337 but differs in packaging and reliability specifications. The LM137K/883 variant is specifically engineered for demanding environments where standard plastic packages may fail.