LM237KC

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

SKU:d9ed827f4d4b Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: Texas Instruments

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

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：-

Download product information

LM237KC

Overview

The LM237KC is a three-terminal adjustable negative-voltage regulator manufactured by Texas Instruments in a TO-220 package. 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 features typical input regulation of 0.01% per volt change and output regulation of 0.3%. It includes internal current limiting, thermal overload protection, and safe-area compensation.

Feature Summary

Adjustable output voltage ranging from -1.2 V to -37 V using only two external resistors
Integrated overload protection including constant peak output current limit and thermal shutdown
High ripple rejection typically rated at 77 dB for effective noise filtering

Applications

Local on-card regulation for negative power rails
Precision current regulation circuits
Consumer electronics requiring stable negative supply voltages

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest Package Option Addendum. Confirm that the procurement channel sources the exact LM237KC variant with the specified TO-220 physical dimensions and pinout configuration to ensure compatibility with existing board layouts.

Selection Notes

Select this component when a robust, high-current negative linear regulator is required. Ensure the design accommodates the necessary heat dissipation for the TO-220 package. Verify that the input-to-output differential voltage remains within the recommended operating conditions to maintain stability and prevent damage.

Part Context

This part belongs to the LMx37 family of adjustable regulators, which also includes the positive LM317 and the commercial temperature grade LM337. The 'K' designation indicates the TO-220 package style, while the 'C' specifies the military-grade temperature range (-25°C to 150°C) distinct from the standard industrial grade.