LM2676S-ADJ/NOPB Part Information

Details for LM2676S-ADJ/NOPB by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

Part Description

The LM2676 series of regulators are monolithic integrated circuits which provide all of the active functions for a step-down (buck) switching regulator capable of driving up to 3-A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low ONresistance DMOS power switch. The series consists of fixed output voltages of 3.3-V, 5-V, and 12-V 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 (260 kHz) 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. The LM2676 series also has built-in thermal shutdown, current limiting and an ON/OFF control input that can power down the regulator to a low 50‑µA quiescent current standby condition. The output voltage is ensured to a ±2% tolerance. The clock frequency is controlled to within a ±11% tolerance.

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Part Features

  • 150-mu03a9 DMOS Output Switch
  • 260-KHz Fixed Frequency Internal Oscillator
  • 3.3-V, 5-V, 12-V Fixed Output and Adjustable (1.2 V to 37 V) Versions
  • 50-u00b5A Standby Current When Switched OFF
  • Efficiency Up to 94%
  • Simple and Easy to Design With (Using Off-the- Shelf External Components)
  • Wide Input Voltage Range: 8 V to 40 V
  • u00b12% Maximum Output Tolerance Over Full Line and Load Conditions
  • u201340 to 125u00b0C Operating Junction Temperature

Part Specifications

Topology Buck (Step Down)
Input Voltage Min 8V
Input Voltage Max 40V
No. of Outputs 1Outputs
DC / DC Converter IC Case TO-263
No. of Pins 7Pins
Output Current 3A
Output Voltage Min 1.2V
Output Voltage Max 37V
Switching Frequency 260kHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 3 - 168 hours
SVHC No SVHC (27-Jun-2018)
Frequency 260kHz
Operating Temperature Min -40°C
Output Voltage 37V
Primary Input Voltage 40V
Termination Type Surface Mount Device
Voltage Regulator Type Step Down (Buck)
RoHS Compliant

Alternative Part Descriptions

  • Stepdown switching regulator,LM2676S-ADJ | RS Components
  • IC, SWITCHING REG, 260KHZ, TO263-7; Topology:Buck (Step Down); Input Voltage Min:8V; Input Voltage Max:40V; No. of Outputs:1Outputs; DC / DC Converter IC Case:TO-263; No. of Pins:7Pins; Output Current:3A; Output Voltage Min:1.2V; RoHS Compliant: Yes | Newark Electronics
  • Conv DC-DC Single Step Down 8V to 40V 8-Pin(7+Tab) TO-263 Rail | Avnet America
  • SIMPLE SWITCHER® 8V to 40V, 3A Low Component Count Step-Down Regulator | Texas Instruments
  • Switching Regulator [Texas Instruments] LM2676S-ADJ/NOPB Switching Regulator | Distrelec

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