The RICHTEK RT8020GQW is an adjustable, positive output, step-down DC-DC switching voltage regulator. It features a 1A output current and operates with an input voltage range of 2.5V to 5.5V.
The Diodes Incorporated PAM2306AYPKE is a dual high-efficiency PWM step-down DC-DC converter. It supports an input voltage range of 2.5V to 5.5V and offers up to 1A output current per channel.