AiT Semiconductor, a leading fabless IC design company ISO9001/ISO14001 registered, devoted to the design and marketing analog & mixed signal integrated circuits, has introduced A7406A, a buck (step-down) DC-DC converter that provides synchronous operations for high voltage power conversion, industrial power systems, power meters, and battery-powered applications.

The A7406A is a high frequency (1.8 MHz) step-down switching regulator with integrated internal high-side high voltage power MOSFET. It provides a single 0.6 A (or less) highly efficient output with current mode control for fast loop response.

The wide input range (4.2 V to 40 V) accommodates a variety of step-down applications. Low shutdown mode quiescent current allows use in battery-powered applications. High efficiency at light load conditions is achieved by scaling down the switching frequency to reduce the switching and gate driving losses.

This converter is also equipped with internal soft-start, thermal shutdown, and precision current limit functions to prevent circuit-level damages and ensure reliability during operation. It is available in a compact surface-mount SOT-26 package.