LM2676S-5.0/NOPB Part Information

Details for LM2676S-5.0/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
DC / DC Converter IC Case TO-263
No. of Pins 7Pins
Output Current 3A
Output Voltage Nom. 5V
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
No. of Outputs 1Outputs
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +125°C
Output Voltage 5V
Output Voltage Max 5.1V
Output Voltage Min 4.9V
Primary Input Voltage 12V
Supply Voltage Max 40V
Supply Voltage Min 8V
Termination Type Surface Mount Device
Voltage Regulator Type Fixed
RoHS Compliant

Alternative Part Descriptions

  • Stepdown switching regulator,LM2676S-5.0 | RS Components
  • IC, STEP-DOWN VOLT REG, 7-TO-263; Topology:Buck (Step Down); Input Voltage Min:8V; Input Voltage Max:40V; DC / DC Converter IC Case:TO-263; No. of Pins:7Pins; Output Current:3A; Output Voltage Nom.:5V; Switching Frequency:260kHz; RoHS Compliant: Yes | Newark Electronics
  • PMIC; DC/DC converter; Uin: 8÷40V; Uout: 5V; TO263-7; buck | Transfer Multisort Elektronik
  • Switch. Reg 3A 5V 45Vs D?Pak-7 | Schukat Electronic
  • SIMPLE SWITCHER® 8V to 40V, 3A Low Component Count Step-Down Regulator | Texas Instruments
  • Switching controller IC [Texas Instruments] LM2676S-5.0/NOPB Switching controller IC | Distrelec

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