LM2674MX-12/NOPB Part Information

Details for LM2674MX-12/NOPB by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

Buy LM2674MX-12/NOPB Directly from Texas Instruments (50878 in stock) at $1.2000

Part Description

The LM2674 series of regulators are monolithic integrated circuits built with a LMDMOS process. These regulators provide all the active functions for a step-down (buck) switching regulator, capable of driving a 500-mA load current with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version. Requiring a minimum number of external components, these regulators are simple to use and include patented internal frequency compensation and a fixed frequency oscillator. The LM2674 series operates at a switching frequency of 260 kHz, thus allowing smaller sized filter components than what is required with lower frequency switching regulators. Because of its very high efficiency (>90%), the copper traces on the printed-circuit board are the only heat sinking required. A family of standard inductors for use with the LM2674 are available from several different manufacturers. This feature greatly simplifies the design of switch-mode power supplies using these advanced ICs. Also included in the data sheet are selector guides for diodes and capacitors designed to work in switch-mode power supplies.

Part Downloads

Part Features

  • 0.25-u2126 DMOS Output Switch
  • 260-kHz Fixed Frequency Internal Oscillator
  • 3-V, 5-V, 12-V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range: 1.21 V to 37 V
  • Available in 8-Pin SOIC, PDIP, and 16-Pin WSON Packages
  • Efficiency up to 96%
  • Ensured 500-mA Output Load Current
  • Requires Only 5 External Components
  • Simple and Easy to Design With
  • TTL Shutdown Capability, Low Power Standby Mode
  • Thermal Shutdown and Current Limit Protection
  • Uses Readily Available Standard Inductors
  • Wide Input Voltage Range: 8 V to 40 V
  • u00b11.5% Maximum Output Voltage Tolerance Over Line and Load Conditions

Part Specifications

Topology Buck (Step Down)
Input Voltage Min 6.5V
Input Voltage Max 40V
DC / DC Converter IC Case SOIC
No. of Pins 8Pins
Output Current 500mA
Output Voltage Nom. 12V
Switching Frequency 260Hz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • SIMPLE SWITCHER® 40V, 500mA Low Component Count Step-Down Regulator | Texas Instruments
  • Switching controller IC [Texas Instruments] LM2674MX-12/NOPB Switching controller IC | Distrelec

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