ETA1486E8A

The ETA1486E8A is a versatile DC-DC step-down switching regulator designed by ETA. It operates within a wide input voltage range of 4.5V to 18V and can deliver a maximum output current of 4A. This device boasts high efficiency, reaching up to 95% at light loads, making it suitable for power-sensitive applications.

Featuring current mode PWM control, the ETA1486E8A allows for the use of small external components, such as ceramic capacitors and inductors, while maintaining low output ripples. It integrates a synchronous rectifier, eliminating the need for an external Schottky diode. The device also employs a proprietary control scheme that enables a power-save mode during light load conditions, further enhancing efficiency across a broader operating range.

Key electrical characteristics include a typical switching frequency of 340 kHz and a typical reference voltage of 0.923V for low output voltage applications. It also includes features like inductor short circuit protection, logic control shutdown, thermal shutdown, and UVLO (Under-Voltage Lockout).

The ETA1486E8A is available in an ESOP8 package, designed for surface mount applications. Its robust design and high efficiency make it a superior solution for DC-DC step-down applications requiring wide input ranges, such as LCD TVs, notebook computers, FPGA power supplies, and LED drivers.