LM2674MX-12/NOPB Part Information
Details for LM2674MX-12/NOPB by Texas Instruments
Electronic & Electrical Components>Semiconductors - ICs>Power Management
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
Download PCB Footprint from Ultra Librarian
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) |
Alternative Part Descriptions
- DC/DC CONV, BUCK, 260KHZ, TO-263-5; 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 RoHS Compliant: Yes | Newark Electronics
- 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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Frequently Asked Questions
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The LM2674MX-12/NOPB is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.
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Is the LM2674MX-12/NOPB RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Farnell.
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Authorised distributors including Newark Electronics, Texas Instruments and Distrelec have stock available or on a lead time for LM2674MX-12/NOPB.
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