LM237KCE3

$0.64

Description：IC REG LIN NEG ADJ 1.5A TO220-3
Series：-
Mfr：Texas Instruments
Package：Tube

SKU:e6d1231a0d4f Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC REG LIN NEG ADJ 1.5A TO220-3
Series：-
Mfr：Texas Instruments
Package：Tube
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 (120Hz)
Control Features：-
Protection Features：Over Current, Over Temperature
Operating Temperature：-25°C ~ 150°C
Mounting Type：Through Hole
Package / Case：TO-220-3
Supplier Device Package：TO-220-3
Grade：-
Qualification：-

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LM237KCE3

Overview

The LM237KCE3 is an obsolete adjustable three-terminal negative-voltage regulator manufactured by Texas Instruments. It provides an output current capability of up to 1.5 A over an adjustable voltage range from -1.2 V to -37 V. The device requires only two external resistors to set the output voltage and one capacitor for frequency compensation. It features internal short-circuit current limiting, thermal overload protection, and safe-area compensation. The component utilizes a TO-220 package with a maximum operating virtual junction temperature of 150°C.

Feature Summary

Adjustable negative voltage regulation across a wide output range
Internal thermal shutdown and short-circuit current limiting
Safe-area compensation for reliable operation under overload conditions

Applications

Local on-card regulation requiring negative supply rails
Precision current regulation circuits
Consumer electronics power supplies
Portable applications utilizing negative voltage outputs

Procurement Notes

Verify that the LM237KCE3 is marked as obsolete in official Texas Instruments documentation before initiating procurement. Confirm availability through authorized distributors or secondary markets, as production has ceased. Ensure any replacement components meet the required electrical specifications and pinout compatibility for your specific design implementation.

Selection Notes

Select this component only if a negative adjustable voltage rail is required and the obsolete status is acceptable for the project lifecycle. Evaluate alternative active devices within the LMx37 family or modern equivalents if long-term supply assurance is necessary. Consider the thermal management requirements associated with the TO-220 package when designing for high-current applications.

Part Context

The LM237KCE3 belongs to the LMx37 series of adjustable three-terminal regulators, which also includes the positive LM317 and the negative LM337 variants. This specific part number denotes the LM237 version housed in a TO-220 package. The series is designed for general-purpose linear regulation applications where adjustable negative voltages are needed.