LM2940CT-12 The Texas Instruments LM2940CT-12 is a 12V linear voltage regulator capable of supplying up to 1A of output current. It features a low dropout voltage of typically 0.5V.
Mfr Part #:

LM2940CT-12

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LM2940CT-12 is a 12V linear voltage regulator capable of supplying up to 1A of output current. It features a low dropout voltage of typically 0.5V.
✓ Total Stock: 1,849 pcs
$ Price Range: $0.28

LM2940CT-12 Available from 3 distributors

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LM2940CT-12 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Mounting Type
Number of Regulators
Operating Temperature
Output Configuration
Output Current
Output Type
PSRR
Package Quantity
Protection Features
Quiescent Current
SVHC Present
Supplier Device Package
Supplier Package
Voltage
Voltage Dropout (Max)

LM2940CT-12 Description

Short technical summary and product information.

The Texas Instruments LM2940CT-12 is a positive voltage regulator designed for applications requiring up to 1A of output current with a low dropout voltage. It offers a fixed output voltage of 12V and operates within an input voltage range of 6V to 26V. The device typically exhibits a dropout voltage of 0.5V at 1A, with a maximum of 1V across the operating temperature range of 0°C to 125°C.

 

Key features include reverse battery protection, internal short circuit current limit, and thermal overload protection, making it suitable for demanding applications. A quiescent current reduction circuit is integrated, which lowers ground current when the input-output voltage differential exceeds approximately 3V. This results in a quiescent current of only 30mA at 1A output with a 5V differential.

 

The LM2940CT-12 is supplied in a TO-220-3 package, designed for through-hole mounting. Its robust protection features and stable regulation make it a reliable choice for various power management needs, including automotive applications where protection against line transients and reverse battery installations is critical.

LM2940CT-12 Quick Information

Product Type: Linear Voltage Regulator
Series: LM2940
Canonical Name: LM2940CT-12 Low-Dropout Voltage Regulator
Subcategory: Linear

LM2940CT-12 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LM2940CT-12 Estimated Pricing

Qty Low High
1+ $0.28 $0.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

LM2940CT-12 Features

  • 12V fixed output voltage regulator.
  • 1A maximum output current capability.
  • Low dropout voltage of 0.5V typical.
  • Wide input voltage range of 6V to 26V.
  • TO-220-3 package for through-hole mounting.

LM2940CT-12 Applications

  • Automotive applications requiring stable voltage.
  • Power supplies with limited input voltage.
  • Regulated power for sensitive electronics.
  • Systems needing reverse polarity protection.

LM2940CT-12 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the output voltage of the LM2940CT-12?

The LM2940CT-12 provides a fixed output voltage of 12V.

What is the maximum output current for the LM2940CT-12?

The LM2940CT-12 can supply an output current in excess of 1A.

What is the dropout voltage of the LM2940CT-12?

The dropout voltage is typically 0.5V at 1A output, with a maximum of 1V over the entire temperature range.

What is the operating temperature range for this regulator?

The operating temperature range is from 0°C to 125°C.

What protection features are included in the LM2940CT-12?

It includes over current, over temperature, reverse polarity, and short circuit protection.

What package type is the LM2940CT-12 supplied in?

The LM2940CT-12 is supplied in a TO-220-3 package.

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