LM140K-15

$88.08

Description：IC REG LINEAR 15V 1A TO3-2
Series：-
Mfr：Texas Instruments
Package：Box

SKU:2ff33d78a818 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 15V 1A TO3-2
Series：-
Mfr：Texas Instruments
Package：Box
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：35V
Voltage - Output (Min/Fixed)：15V
Voltage - Output (Max)：-
Voltage Dropout (Max)：2V @ 1A
Current - Output：1A
Current - Quiescent (Iq)：6 mA
Current - Supply (Max)：-
PSRR：70dB (120Hz)
Control Features：-
Protection Features：Over Temperature, Short Circuit
Operating Temperature：-55°C ~ 125°C
Mounting Type：Through Hole
Package / Case：TO-204AA, TO-3
Supplier Device Package：TO-3-2
Grade：-
Qualification：-

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LM140K-15

Overview

The LM140K-15 is a fixed-output linear voltage regulator manufactured by Texas Instruments, designed for through-hole mounting in TO-3-2 packages. It provides a stable 15 V output with a maximum current capacity of 1 A. The device operates within an input voltage range of 17.7 V to 35 V and supports a wide operating temperature range from -55°C to +125°C. Key electrical specifications include a line regulation of 22 mV, load regulation of 35 mV, and a typical static current of 6 mA. It features integrated thermal overload and short-circuit protection.

Feature Summary

Provides a fixed positive 15 V output voltage suitable for standard power supply applications.
Capable of delivering up to 1 A of continuous output current.
Includes built-in thermal overload and short-circuit protection mechanisms.

Applications

General-purpose linear power supply circuits
Industrial equipment requiring robust voltage regulation
Automotive electronics systems

Procurement Notes

Verify the exact suffix (e.g., NOPB) against the datasheet to ensure compliance with RoHS standards and lead-free manufacturing requirements. Confirm that the TO-3-2 package matches the target PCB footprint or heatsink interface. Ensure the supplier provides valid traceability documentation for military-grade variants if required by the application specification.

Selection Notes

Select this component when a high-current, ruggedized linear regulator is needed for harsh environments. The TO-3 package offers superior thermal dissipation compared to smaller surface-mount alternatives. Consider the minimum dropout voltage relative to the input source to ensure stable regulation under all load conditions.

Part Context

This part belongs to the LM140 series of adjustable and fixed linear regulators. The 'K' designation indicates a military-grade temperature range and reliability standard. The '-15' suffix specifies the fixed 15 V output voltage. It serves as a legacy alternative to modern LDOs in high-power, high-reliability applications.