DC-DC Step-Down converter module 5V/1A

Step-Down converter D36V28F3 with an output voltage of 3.3 V, an input voltage from 4.5 to 50 V and a maximum output current of 4.5 A. Pololu 3781

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.

DC-DC Step-Down converter module. It has an input voltage from 15 to 45 V, an output voltage of 15 V and a maximum output current of up to 2.7 A. Pololu 4897

AP3429A DC-DC Step-Down Converter Module with 1.8 V output voltage, 2.7 to 5.5 V input voltage and 2 A maximum output current. SparkFun COM-21338

Modular power supply with a power of 3 W, input voltage from 100 to 240 V and output voltage of 3.3 V. Designed for mounting on a PCB. Hi-Link HLK-PM03

Modular power supply with a power of 3 W, input voltage from 100 to 240 V and output voltage of 5 V. Designed for mounting on a PCB. Hi-Link HLK-PM01

Step-Down converter D36V28F6 with an output voltage of 6 V, an input voltage from 6.3 to 50 V and a maximum output current of 4 A. Pololu 3783

The compact (0.4″ × 0.5″) D24V5F15 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 15 V while allowing for a maximum output current of 500 mA. Pololu 2847

The compact (0.4″ × 0.5″) D24V5F5 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 5 V while allowing for a maximum output current of 500 mA. Pololu 2843

Pololu 2832

Step-Down converter D36V28F12 with an output voltage of 12 V, an input voltage from 12.9 to 50 V and a maximum output current of 3.3 A. Pololu 3786

DC-DC Step-Down converter module. It has an input voltage from 6 to 45 V, an output voltage of 6 V and a maximum output current of up to 3.3 A. Pololu 4893

The Step-Down converter module converts the input voltage of 5.3 - 26 V to a constant 3.3 V, with a maximum output current of 3 A, recommended up to 1.8 A for long-term operation. The conversion efficiency of the device is 96% and the module size is 22.3 x 17 x 4.2 mm

 Pololu 2831

The Step-Down Converter Module converts 4-40V to a regulated output voltage of 1.25-36V, supporting a maximum of 8A and 200W, with a conversion efficiency of 94%. It is a compact device (61 x 41 x 27 mm) using PWM modulation, ideal for industrial applications requiring a stable output voltage.

Step-Down converter module with input voltage from 4.75 to 23V, output voltage from 1 to 17V and output current 1.8 A (3 A instantaneous current).