LM140K-15

Name: LM140K-15
Brand: Texas Instruments
Rating: 4.5 (10 reviews)
Author: Lisleapex

It provides reliable power supply for electronic devices

5,125 Effective Inventory

LM140K-15

Effective Inventory5,125

It provides reliable power supply for electronic devices

Manufacturer Part # : LM140K-15
Package/Case: TO-CAN (NDS)-2
Brand: Texas Instruments
Product Categories : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
Series : LM140

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LM140K-15 DataSheet

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

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LM140K-15 Details

The LM140K-15 is a 15V voltage regulator from Texas Instruments, designed to provide a stable 15V output voltage for various electronic circuits. This regulator offers high accuracy and reliability, making it suitable for precision applications. It is housed in a TO-3 metal can package, ensuring efficient heat dissipation and robust performance.

Pinout

1 (Input): Voltage Input
2 (Ground): Ground Connection
3 (Output): Regulated 15V Output

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

Stable Output: Provides a stable 15V output voltage under varying load conditions.
High Accuracy: Offers precise voltage regulation for demanding applications.
TO-3 Package: Housed in a TO-3 metal can package for efficient heat dissipation.
Overload Protection: Includes built-in protection against overcurrent and overvoltage conditions.
Wide Operating Temperature Range: Suitable for operation in various environmental conditions.

Application

Power Supply: Ideal for providing regulated 15V power supply in electronic circuits.
Audio Amplifiers: Used in audio amplifier circuits for stable voltage supply.
Instrumentation: Suitable for precision instrumentation applications requiring accurate voltage regulation.

Where to Use

The LM140K-15 is ideal for applications that require a stable 15V voltage source, such as power supplies, audio amplifiers, and precision instruments. It ensures reliable and accurate voltage regulation for optimal circuit performance.

How to Use

Connect the LM140K-15 to your circuit by inputting the voltage source to the Input pin and grounding the Ground pin. The Output pin will provide a stable 15V output for your electronic components. Ensure proper heat dissipation and voltage decoupling for optimal performance. Refer to the datasheet for detailed usage instructions.

Application Circuit

The application circuit diagram for the LM140K-15 illustrates how to integrate the voltage regulator into your electronic system. It shows the connections for input voltage, ground, and the regulated 15V output, ensuring proper voltage supply and stability.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

LM7815: A comparable 15V voltage regulator with similar characteristics from Texas Instruments.
UA7815: An alternative voltage regulator from Fairchild Semiconductor offering equivalent functionality.

Complementary

The LM140K-15 can be complemented by the LM337K adjustable voltage regulator, allowing for variable output voltage regulation in the same circuit. This combination provides flexibility in voltage supply for diverse applications.

When selecting complementary regulators, ensure compatibility and proper configuration for seamless integration.

Frequently Asked Questions

Q: What is the maximum output current of the LM140K-15?

A: The LM140K-15 can provide a maximum output current of up to [insert value]A. Refer to the datasheet for detailed specifications and operating conditions.

Q: Is the LM140K-15 suitable for high-power applications?

A: While the LM140K-15 is designed for medium-power applications, it can be used in certain high-power circuits with proper heatsinking and thermal management. Refer to the datasheet for guidelines on power dissipation and thermal considerations.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Output options	Fixed Output	Iout (max) (A)	1
Vin (max) (V)	35	Vin (min) (V)	17.6
Vout (max) (V)	15	Vout (min) (V)	5
Fixed output options (V)	5, 12, 15	Noise (µVrms)	40
Iq (typ) (mA)	7	Thermal resistance θJA (°C/W)	39
Rating	Military	Load capacitance (min) (µF)	0
Regulated outputs (#)	1	Accuracy (%)	4
PSRR at 100 KHz (dB)	50	Dropout voltage (Vdo) (typ) (mV)	2500
Operating temperature range (°C)	-55 to 125

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification LM140K-15 PDF Download

FAQs

What is LM140K-15?

The LM140K-15 is a 3-terminal positive voltage regulator designed by Texas Instruments. It is a part of the LM140/LM340 series and is capable of delivering a fixed output voltage of 15V with a maximum output current of up to 1A. This regulator is commonly used in a wide range of applications including power supplies, industrial control systems, and instrumentation.

How Does LM140K-15 Work?

The LM140K-15 works by regulating the input voltage to a stable 15V output. It uses a reference voltage and feedback control mechanism to maintain the output voltage despite variations in the input voltage and load conditions. The regulator also includes overcurrent and thermal protection to ensure safe and reliable operation.

How Many Pins does LM140K-15 have and What are the Functions of the Pinout Configuration?

The LM140K-15 is housed in a TO-3 metal can package. The pinout configuration includes:

Input: The input terminal for the unregulated DC input voltage.
Common: The common terminal which is connected to the ground reference.
Output: The regulated 15V output terminal.

What are the Pros and Cons of LM140K-15?

Pros:

High Output Current: Capable of delivering up to 1A of current, suitable for a variety of loads.
Stable Output Voltage: Provides a fixed 15V output voltage with low ripple and good line and load regulation.
Overcurrent Protection: Includes built-in protection against excessive output current.
Thermal Shutdown: Features thermal shutdown protection to prevent overheating.
Industry Standard Package: The TO-3 package allows for effective heat dissipation.

Cons:

Size: The TO-3 package may be larger and less space-efficient than other package types.
Heat Dissipation: Requires a heat sink for high power dissipation applications.
Fixed Output Voltage: Not adjustable for voltage output flexibility.

Are There Any Equivalents/Alternatives to LM140K-15 for Recommendation?

There are several alternatives to the LM140K-15 including the LM340-15, LM7815, and UA7815 voltage regulators from various manufacturers like National Semiconductor and STMicroelectronics.