LM2676SX-ADJ/NOPB – TEXAS INSTRUMENTS

The Texas Instruments LM2676SX-ADJ/NOPB is a 1.5A synchronous step-down converter in a space-saving 10-pin SOT-23-5 package. Crucially, the “/NOPB” suffix denotes a lead-free, halogen-free package, vital for RoHS compliance. Unlike fixed-output versions, the “-ADJ” suffix signifies an adjustable output voltage, ranging from 1.23V to 15V, determined by external resistor selection. This flexibility makes it ideal for applications requiring precisely tailored voltage rails. The device operates efficiently with a wide input voltage range of 4.5V to 28V, maintaining a high efficiency even at light loads thanks to its synchronous rectification. Features include soft-start, overcurrent protection, and thermal shutdown, enhancing system robustness. Typical applications include powering microcontrollers, sensor nodes, and other low-power circuits where a precisely adjustable, regulated voltage is needed in a compact form factor. Its high efficiency minimizes power loss and heat generation, making it suitable for battery-powered or thermally constrained designs. The LM2676SX-ADJ/NOPB’s ease of use and robust protection mechanisms simplify design and reduce development time.