LM2675MX-3.3/NOPB Part Information

Details for LM2675MX-3.3/NOPB by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

Part Description

The LM2675 series of regulators are monolithic integrated DC-DC converter circuits built with a LMDMOS process. These regulators provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1-A 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 LM2675 series operates at a switching frequency of 260 kHz, thus allowing smaller-sized filter components than what would be needed 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 needed.

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Part Features

  • 260-kHz Fixed Frequency Internal Oscillator
  • 3.3-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 Package
  • Efficiency up to 96%
  • Ensured 1-A Output Load Current
  • Requires only 5 External Components
  • TTL Shutdown Capability, Low-Power Standby Mode
  • Thermal Shutdown and Current Limit Protection
  • 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 1A
Output Voltage Nom. 3.3V
Switching Frequency 260kHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL -
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • DC/DC CONV, BUCK, 260KHZ, SOIC-8; 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:1A; Output Voltage Nom.:3.3V; Switching Frequency:260kHz; RoHS Compliant: Yes | Newark Electronics
  • SIMPLE SWITCHER® 6.5V to 40V, 1A Low Component Count Step-Down Regulator | Texas Instruments
  • Switching controller IC [Texas Instruments] LM2675MX-3.3/NOPB Switching controller IC | Distrelec

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