LM2940IMP-12

LM2940IMP-12 is an LDO voltage regulator
3,299 Effective Inventory

LM2940IMP-12

Effective Inventory3,299

LM2940IMP-12 is an LDO voltage regulator

  • Manufacturer Part # : LM2940IMP-12

  • Package/Case: SOT223-4

  • Brand: Texas Instruments

  • Product Categories : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

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Service & Packaging

Service & Packaging

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LM2940IMP-12 DataSheet
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Please submit RFQ for LM2940IMP-12 or email to us: Email: [email protected], we will contact you in 12 hours.

Details

One of the standout features of the LM2940IMP-12 is its comprehensive protection mechanisms, including thermal overload protection, short circuit protection, and safe area protection. These safety measures contribute to the durability and longevity of the device, offering peace of mind to users in various applications. Moreover, the regulator's 3-pin TO-220 package allows for easy integration into existing circuits, simplifying the design and installation process. With a low quiescent current of 10mA, the LM2940IMP-12 is also suitable for battery-powered applications, making it a versatile solution for a wide range of power supply needs

Key Features

  • Input Voltage Range = 6 V to 26 V
  • Dropout Voltage Typically 0.5 V at IOUT = 1 A
  • Output Current in Excess of 1 A
  • Output Voltage Trimmed Before Assembly
  • Reverse Battery Protection
  • Internal Short Circuit Current Limit
  • Mirror Image Insertion Protection
  • P+ Product Enhancement Tested

Specifications

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

Product Category ! LDO Voltage Regulators RoHS N
Mounting Style SMD/SMT Package / Case SOT-223-4
Output Voltage 12 V Output Current ! 1 A
Number of Outputs 1 Output Polarity Positive
Quiescent Current ! 15 mA Input Voltage, Min 13.6 V
Input Voltage, Max 26 V Output Type Fixed
Minimum Operating Temperature - 40 C Maximum Operating Temperature ! + 125 C
Dropout Voltage ! 500 mV Series LM2940-N
Brand Texas Instruments Dropout Voltage - Max 0.8 V at 1 A, 0.15 V at 100 mA
Ib - Input Bias Current 10 mA Line Regulation ! 120 mV
Load Regulation ! 120 mV Operating Supply Current 10 mA
Product Type ! LDO Voltage Regulators Factory Pack Quantity 1000
Subcategory PMIC - Power Management ICs Unit Weight 0.003951 oz

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 LM2940IMP-12 PDF Download

FAQs

What is LM2940IMP-12?

The LM2940IMP-12 is a 12V low dropout voltage regulator integrated circuit designed by Texas Instruments. It is capable of providing up to 1A of output current with a very low dropout voltage, making it ideal for various power supply applications in automotive, industrial, and consumer electronics.

How Does LM2940IMP-12 Work?

The LM2940IMP-12 works by regulating a higher input voltage to a stable 12V output voltage with minimal dropout. It features a PNP pass transistor architecture that enables low dropout voltage and low quiescent current, ensuring efficient power conversion.

How Many Pins does LM2940IMP-12 have and What are the Functions of the Pinout Configuration?

The LM2940IMP-12 is housed in a 3-lead TO-220 package. The pinout configuration includes:

  • Input: Input voltage pin.
  • Ground: Ground pin.
  • Output: Regulated 12V output pin.

What are the Pros and Cons of LM2940IMP-12?

Pros:

  • Low Dropout Voltage: Works with a very low dropout voltage, suitable for applications with small voltage differentials.
  • High Output Current: Capable of delivering up to 1A of output current, suitable for powering various loads.
  • Thermal Shutdown Protection: Includes thermal shutdown protection to prevent device damage under high temperature conditions.
  • Wide Input Voltage Range: Accepts a wide input voltage range, making it versatile for different power supply designs.

Cons:

  • Heat Dissipation: May require a heat sink in high-power applications to manage thermal dissipation.
  • Package Size: The TO-220 package may be relatively large for space-constrained designs.
  • Quiescent Current: Although low, it has a non-negligible quiescent current that should be considered in battery-powered applications.

Are There Any Equivalents/Alternatives to LM2940IMP-12 for Recommendation?

  • The LM2937-12 from Texas Instruments is a similar 12V low dropout voltage regulator with enhanced features.
  • Alternatives to the LM2940IMP-12 include the L78S12CV from STMicroelectronics and the NCP1117-12 from ON Semiconductor.

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