AP3428DNTR-G1 (U-DFN2020-6)

1A, 97% Efficiency, 30µA Quiescent Current Step-Up Converter with True Shutdown, tdfn10-ep, Maxim Integrated, RoHS

STBB1-APUR, Buck-Boost DC-DC converter, allows to lower and increase voltage, DFN10, STMicroelectronics, RoHS

The ST1S09IPUR is a compact, synchronous buck regulator with a 2 A output current, designed for efficient power systems in mobile, industrial, and embedded applications. Integrated transistors and high switching frequency enable the design of miniature, low-noise converters with adjustable output voltage.

MP1541DJ-LF-Z is a 1.3 MHz high-efficiency boost converter with integrated protection and compact form factor, ideal for powering displays and portable devices from low-voltage sources

The XL4015E1 converter is a step-down (buck) circuit that converts an input voltage of 8-36V to a regulated output of 1.25-32V, with a maximum current of up to 5A. It is characterized by high efficiency (up to 96%) and protection against short circuit and overheating, although it does not have protection against reverse polarity of the power supply.