The compact (0.4″ × 0.5″) D24V5F12 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 12 V while allowing for a maximum output current of 500 mA.

Step-Down Voltage Regulator D24V25F5. Pololu 2850

This small synchronous switching step-down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 7.5 V. The board measures only 0.7″ × 0.7″, but it allows a typical continuous output current of up to 2.5 A. Typical efficiencies of 85% to 95% make this regulator well suited for powering moderate loads like sensors or small motors.

Pololu 24V Step-Up Voltage Regulator U3V50F24

Pololu 5V Step-Up/Step-Down Voltage Regulator S7V7F5

Shunt regulator with a constant voltage of 33V, bypass resistance 4Ohm and a total of 12 SMT shunt resistors on both sides of the PCB with the possibility of adding an external potentiometer to adjust the preset voltage. Pololu 3776

The Step-UpU1V10F3 Buck Voltage Regulator module with output voltage 3.3V, input voltage range of 0.5-5.5V and a maximum output current of 1.2A. Pololu 2563

Pololu 5V Step-Up Voltage Regulator U1V10F5

The shunt regulator with a constant voltage of 26.4V, bypass resistance 4Ohm and a total of 12 SMT shunt resistors on both sides of the PCB with the possibility of adding an external potentiometer to adjust the preset voltage. Pololu 3774

Power module with a USB Type-C connector based on the STUSB4500 system. It enables powering devices with voltages ranging from 5 V to 20 V and currents up to 5 A. Configuration via the I2C interface. SparkFun DEV-15801

Step-Up/Step-Down DC-DC converter module. It has an input voltage of 2.8 to 22 V, an output voltage of 3.3 V and a maximum output of 2.5 A to 3.5 A. Pololu 4980

The Step Down DC-DC converter module (MP2307) allows to obtain 0.93..18V output voltage at 4.75..24V input voltage. The output voltage is regulated by a potentiometer

BMS system for four Li-Ion cells with a voltage of 16,8 V. It has the function of charging with balancer, discharging and over-discharge protection. The cells can be charged with continuous current up to 60 A and discharged with current up to 80 A

The Step-Up Buck Voltage Regulator module with output voltage of 3.3V and input voltage range of 1-3V and a maximum output current of 200 mA. STMicroelectronics EVAL4971

Akyga EMC EMV EN2020-16-F is a single-phase EMI filter designed to suppress electromagnetic interference in devices powered by 120-250VAC, improving their stability. Supporting current up to 16A and frequency 50/60 Hz, it works well in power supplies, frequency converters and automation systems.

DC-DC Step-Down converter module AP63203 with an output voltage of 3.3 V, an input voltage of 3.8 to 32 V and a maximum output current of 2 A. SparkFun COM-18356

The S9V11F3S5C3 switching step-up/step-down regulator efficiently produces a fixed 3.3 V (default) or 5 V (selectable) output whether it is higher or lower than the input voltage, which can range from 3 V to 16 V. The regulator also has fixed 3.3 V low-voltage cutoff with hysteresis that can be used to prevent battery over-discharge.

Step-Up/Step-Down DC-DC converter module. It has an input voltage of 2.8 to 22 V, an output voltage of 6 V and a maximum output of 2.5 A to 3.5 A. Pololu 4981