TEXAS INSTRUMENTS DC/DC Synchronous Buck Regulator 4.5V-28V 2A SOT-6

The TEXAS INSTRUMENTS DC/DC Switching Synchronous Buck Regulator provides an efficient and compact power conversion solution. Supporting a wide input voltage range from 4.5V to 28V, it delivers a continuous output current of 2A with an adjustable output from 0.6V to 26V. Packaged in a 6-pin SOT format, this device is designed for surface mount applications, offering a small footprint on PCBs for high power density.

This step-down converter features advanced Eco-mode implementation to maximise light load efficiency and reduce power loss. It also includes frequency spread spectrum operation for effective EMI reduction. Integrated switching MOSFETs and internal loop compensation significantly reduce the overall component count, while the internal 5ms soft start ensures smooth power-up sequences.

Protection and Reliability

The regulator is equipped with comprehensive protection features, including cycle-by-cycle current limit on the high side MOSFET and a low side MOSFET freewheeling current limit to prevent current runaway. Hiccup mode protection activates if an overcurrent condition persists. Additional safeguards include over-voltage protection and thermal shutdown, ensuring robust performance in demanding environments.

Measuring just 43 mm in height, 33 mm in width, and 15 mm in depth, with a weight of 2.5 grams, this regulator is well-suited for space-constrained designs in industrial and consumer electronics.