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LM2678T-ADJ/NOPB

performance buck converter with adjustable output and wide input range

Inventory:3,087

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Overview of LM2678T-ADJ/NOPB

The LM2678T-ADJ/NOPB is a step-down (buck) voltage regulator IC capable of producing adjustable output voltages. It is designed to efficiently convert higher input voltages (up to 40V) into lower, regulated voltages suitable for various applications.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • VIN: Input Voltage
  • SW: Switching Node
  • FB: Feedback Pin
  • GND: Ground
  • VOUT: Output Voltage
  • EN: Enable Pin
  • SS/TR: Soft-Start/Tracking

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LM2678T-ADJ/NOPB IC for a visual representation.

Key Features

  • Adjustable Output Voltage: Allows for flexibility in output voltage settings based on application requirements.
  • High Efficiency: Offers high efficiency conversion with minimal power loss, suitable for power-sensitive applications.
  • Wide Input Voltage Range: Supports input voltages up to 40V, accommodating a wide range of power supply sources.
  • Current Limiting: Includes built-in current limiting for overload protection and reliable operation.
  • Thermal Shutdown: Features thermal shutdown protection to prevent damage from overheating.

Note: For detailed technical specifications, please refer to the LM2678T-ADJ/NOPB datasheet.

Application

  • Power Supply: Ideal for generating regulated voltages in power supply circuits for various electronics.
  • Battery-Powered Devices: Suitable for use in devices powered by batteries, providing efficient voltage regulation.
  • Embedded Systems: Used in embedded systems to ensure stable voltage supply for microcontrollers and other components.

Functionality

The LM2678T-ADJ/NOPB is a versatile step-down voltage regulator that efficiently converts higher input voltages to adjustable lower output voltages, making it essential in numerous power management applications.

Usage Guide

  • Input Power: Connect VIN (Pin 1) to the input voltage source (up to 40V).
  • Output Voltage Adjustment: Adjust output voltage using the feedback (FB, Pin 3) and enable (EN, Pin 5) pins as per the datasheet guidelines.
  • Heat Dissipation: Ensure adequate heat sinking or thermal management due to its high efficiency operation.

Frequently Asked Questions

Q: What is the maximum input voltage the LM2678T-ADJ/NOPB can handle?
A: The LM2678T-ADJ/NOPB can handle input voltages up to 40V.

Q: Does the LM2678T-ADJ/NOPB include thermal shutdown protection?
A: Yes, it features thermal shutdown protection to prevent overheating and ensure reliable operation.

Equivalent

For similar functionalities, consider these alternatives to the LM2678T-ADJ/NOPB:

  • LM2678-ADJ: A variant of the LM2678 series with adjustable output voltage and similar performance characteristics.
  • LM2596S-ADJ: A popular step-down voltage regulator IC with adjustable output voltage and efficient operation.

Specifications

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

Vin (min) (V) 8 Vin (max) (V) 40
Vout (min) (V) 1.23 Vout (max) (V) 37
Iout (max) (A) 5 Iq (typ) (mA) 4.2
Switching frequency (min) (kHz) 260 Switching frequency (max) (kHz) 260
Features Frequency synchronization, Over Current Protection Operating temperature range (°C) -40 to 125
Rating Catalog Regulated outputs (#) 1
Control mode Voltage mode Duty cycle (max) (%) 91
Type Converter

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packageimg

LM2678T-ADJ/NOPB

performance buck converter with adjustable output and wide input range

Inventory:

3,087