MAX1771CSA+

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

LM3668SD-4550/NOPB, 1-A, High-Efficiency Dual-Mode Single-Inductor Buck-Boost DC-DC Converter, WSON-12

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.

RT8064ZQW, Synchronous Step-Down Converter, WDFN-8

DC/DC converter control circuits, SO8, STM, RoHS

MP2159GJ, Step-Down Converter, 1A, 6V, 1.5MHz, 17μA IQ, TSOT23-8

The MC34063AD is a versatile switching voltage regulator that can operate as a step-up, step-down, and inverting converter, ideal for flexible power management in a variety of electronics projects. It supports input voltages up to 40 V and output currents up to 1.5 A, and offers additional overload protection, current limiting, and thermal shutdown features for increased reliability.