LM2674MX-ADJ/NOPB

Switching Voltage Regulators PWR CONVERTER HI EFF 500MA SD VLTG REG
500,000 Effective Inventory

LM2674MX-ADJ/NOPB

Effective Inventory500,000

Switching Voltage Regulators PWR CONVERTER HI EFF 500MA SD VLTG REG

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LM2674MX-ADJ/NOPB DataSheet
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LM2674MX-ADJ/NOPB Details

The LM2674MX-ADJ/NOPB is a powerful buck switching regulator from Texas Instruments, designed to provide efficient and reliable voltage regulation in various applications. This device features an adjustable output voltage, wide input voltage range, and high efficiency, making it suitable for a wide range of power management applications.

Key Features

  • Enhanced thermal performance: For reliable and efficient operation.
  • Advanced shutdown capabilities: Allows for controlled shutdown and startup sequences.
  • Improved power density: Enables higher output currents in a smaller package size.
  • Increased output current: Supports increased load demands with minimal impact on overall system performance.
  • Wide input voltage range: Suitable for applications with varying input power sources.

Applications

The LM2674MX-ADJ/NOPB is suitable for a wide variety of applications, including:

  • Aerospace and defense systems
  • Industrial power supplies
  • Automotive electronics
  • Medical devices

Where to Use

The LM2674MX-ADJ/NOPB is ideal for use in applications where reliable and efficient voltage regulation is critical, such as:

  • Instrumentation systems
  • Sensor and actuator control circuits
  • Power supply backup and conditioning circuits

How to Use

To use the LM2674MX-ADJ/NOPB, configure the device by setting the output voltage using the internal reference voltage, then connect the input voltage and output capacitors as required. Ensure proper power supply connections to VCC and GND. Refer to the datasheet for detailed usage instructions.

Application Circuit

The application circuit diagram for the LM2674MX-ADJ/NOPB illustrates a basic voltage regulator configuration, highlighting key component connections and pin assignments. Please refer to the datasheet for detailed circuit diagram connections and usage guide.

Equivalents

  • LDO15V: A comparable low-dropout regulator from Texas Instruments, offering similar performance characteristics.

Complementary

The LM2674MX-ADJ/NOPB can be complemented by the LM2675X-ADJ, which offers additional features such as higher output currents and improved shutdown capabilities, suitable for demanding power management applications.

When selecting complementary devices, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.

Frequently Asked Questions

Q: What is the minimum input voltage required for proper operation?

A: The LM2674MX-ADJ/NOPB requires a minimum input voltage of 5V to ensure reliable and efficient operation. For more details, refer to the datasheet.

Q: Can the LM2674MX-ADJ/NOPB be used in medical devices?

A: Yes, the LM2674MX-ADJ/NOPB is suitable for use in medical devices, offering reliable and efficient voltage regulation capabilities.

Specifications

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

Vin (min) (V) 6.5 Vin (max) (V) 40
Vout (min) (V) 1.23 Vout (max) (V) 37
Iout (max) (A) 0.5 Iq (typ) (mA) 2.5
Switching frequency (min) (kHz) 260 Switching frequency (max) (kHz) 260
Features Enable, Over Current Protection Operating temperature range (°C) -40 to 125
Rating Catalog Regulated outputs (#) 1
Control mode Voltage mode Duty cycle (max) (%) 95
Type Converter

FAQs

What is LM2674MX-ADJ/NOPB?

The LM2674MX-ADJ/NOPB is an adjustable voltage regulator integrated circuit (IC) manufactured by Texas Instruments. It is a step-down (buck) switching regulator that provides efficient power conversion for various electronic devices and systems.

How Does LM2674MX-ADJ/NOPB Work?

The LM2674MX-ADJ/NOPB works by taking a higher input voltage and regulating it down to a lower, adjustable output voltage. It utilizes a switching topology to achieve high efficiency by rapidly switching the input voltage on and off. The adjustable feature allows for flexibility in setting the output voltage to meet specific system requirements.

How Many Pins does LM2674MX-ADJ/NOPB have and What are the Functions of the Pinout Configuration?

The LM2674MX-ADJ/NOPB is housed in a 8-pin SOIC (Small Outline Integrated Circuit) package. The pinout configuration includes:

  • VIN: Input voltage pin.
  • GND: Ground connection.
  • SHDN: Shutdown pin for enabling/disabling the regulator.
  • FB: Feedback pin for setting the output voltage.
  • SYNC: Synchronization input for external clock synchronization.
  • SS/TR: Soft-start/tracking pin for controlling start-up time.
  • VOUT: Output voltage pin.

What are the Pros and Cons of LM2674MX-ADJ/NOPB?

Pros:

  • Efficiency: Switching topology ensures high efficiency power conversion.
  • Adjustability: Ability to adjust the output voltage for different applications.
  • Protection Features: Built-in protection mechanisms such as thermal shutdown and current limiting.
  • Small Package: Compact 8-pin SOIC package for space-constrained designs.

Cons:

  • Complexity: Switching regulators may require additional external components for optimal operation.
  • Noise: Switching noise may be a consideration for sensitive analog applications.
  • Heat Dissipation: Higher efficiency also means higher power dissipation, which may require heat sinking.

Are There Any Equivalents/Alternatives to LM2674MX-ADJ/NOPB for Recommendation?

  • The LM2675 from Texas Instruments is a similar adjustable switching regulator with slightly different features.
  • Alternatives to the LM2674MX-ADJ/NOPB include the LM2940 from Texas Instruments and the LM7805 from STMicroelectronics.

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