LM2676SX-5.0/NOPB
| Parameters | |
|---|---|
| Series | SIMPLE SWITCHER® |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | TO-263-8, D²Pak (7 Leads + Tab), TO-263CA |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Voltage - Input (Max) | 40V |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Current - Output | 3A |
| Supplier Device Package | DDPAK/TO-263-7 |
| Output Configuration | Positive |
| Function | Step-Down |
| Topology | Buck |
| Frequency - Switching | 260kHz |
| Synchronous Rectifier | No |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | - |
| Voltage - Input (Min) | 8V |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | LM2676 |
| REACH Status | REACH Affected |
| Standard Package | 500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
LM2676SX-5.0/NOPB Buck Regulator IC Positive Fixed 5V 1 Output 3A
The LM2676SX-5.0/NOPB is a high-efficiency, step-down (buck) switching voltage regulator from Texas Instruments, housed in a TO-263 (D2PAK) surface-mount package, designed to deliver a fixed 5.0V output with up to 3A of continuous load current from a wide input voltage range of 8V to 40V. As part of TI's SIMPLE SWITCHER® family, it integrates a DMOS power MOSFET switch, a high-frequency oscillator, and essential control and protection circuitry, significantly simplifying the design of compact and reliable power supplies while achieving efficiencies up to 92%.
This regulator is widely deployed in various power conversion scenarios, including point-of-load regulation for distributed power systems, powering logic circuits and microprocessors in industrial control and automotive electronics, battery charging systems, and as a primary DC/DC converter in telecom and networking equipment where high efficiency, reliability, and ease of design are critical requirements.
Compatible Alternative Regulator List
● LM2676SX-ADJ/NOPB: An adjustable output voltage version of the same regulator, offering flexibility to set the output between 1.2V and 37V using external resistors.
● LM2676SX-3.3/NOPB: A fixed 3.3V output variant from the same series, providing a standard voltage rail for digital logic circuits with identical performance characteristics.
● LM2596S-5.0/NOPB: A 3A, 150 kHz step-down switching regulator in a TO-263 package, serving as a cost-effective alternative with a lower switching frequency for less noise-sensitive applications.
● TPS5450DDAR: A 5A, wide-input synchronous buck converter from Texas Instruments, offering higher output current and improved efficiency for more demanding power requirements.
