DC-DC Switching Buck (Step Down) Regulator, Adjustable, 8V-40Vin, 1.2V-37Vout, 3Aout, TO-263-7

LM2676S-ADJ/NOPB - DC-DC Switching Buck (Step Down) Regulator, Adjustable, 8V-40Vin, 1.2V-37Vout, 3Aout, TO-263-7

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Product Overview

The LM2676S-ADJ/NOPB is a step-down switching Voltage Regulator, capable of driving up to 3A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low ON-resistance DMOS power switch. The series consists of fixed output voltages of 3.3, 5 and 12V and an adjustable output version. The SIMPLE SWITCHER concept provides for a complete design using a minimum number of external components. A high fixed frequency oscillator (260kHz) allows the use of physically smaller sized components. A family of standard inductors for use with the LM2676 are available from several manufacturers to greatly simplify the design process.
  • Efficiency up to 94%
  • Simple and Easy to Design with (Using Off-the-shelf External Components)
  • 150mΩ DMOS Output Switch
  • 50μA Standby Current When Switched OFF
  • ±2% Maximum Output Tolerance Over Full Line and Load Conditions
  • 260kHz Fixed Frequency Internal Oscillator


Power Management


Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

Product Information

Buck (Step Down)
Cut Tape
MSL 3 - 168 hours
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315 Further stock expected to ship on May 9, 2018

315 Further stock expected to ship on Jun 13, 2018

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