Make 12v to 9v, 12v to 5v, 5v to 3.3v and 3.3v to 5v Converter : 5

KOOBOOK 2Pcs Mini DC-DC Boost Step-up Power Supply Module 3.3V 3.7V 5V 6V 7.2V 9V to 12V Voltage Regulator Converter : Electronics

Voltage Regulator Kit, 9v Voltage Regulator, Step Converter

DC-DC Buck Converter Adjustable Mini Step-down Module 1.8V 3.3V 5V 9V 12V 2A

PRT-00114: Here is a very simple breadboard power supply kit that takes power from a DC wall wart and outputs a selectable 5V or 3.3V regulated voltage. The .1 headers are mounted on the bottom of the PCB for simple insertion into a breadboard. Pins labeled VCC and GND plug directly into the power lines. The lone pair of pins have no electrical connection but help support the PCB. There are two pins available within the barrel jack footprint.

SparkFun PRT00114 Breadboard Power Supply 5V/3.3V

Fixed Input, Unregulate Dual Separate 24V 15V 12V 9V 5V Input Output Power Supply - China Power Supply, Power Inverter

The power module adopts the plug-in LM2596HV, the high voltage version of the LM2596. The maximum input voltage is 50V (limited by the filter capacitor withstand voltage). The external heat sink can withstand high current operation. The input terminal uses a 4A rectifier bridge stack to input AC power, and has a dedicated DC input port, which is commonly used for AC and DC input.

Acxico 2 Pcs 3.3V 5V 6V 9V 12V 24V Mini AC DC to DC Buck Step Down Adjustable Volt Converter

Applications:, 1.2V/1.5V/1.8V/2.5V/3.3V/5V MCU ARM CPU FPGA/CPLD , 12V 5V TO 3.7V lithium battery-powered systems, 12V 9V 6V 5V 3.3V Motor, WIFI

DD40AJSA 1A small DC DC Step Down Converter Module 24V 12V 9V to 5V 3.3V 3V Adjustable Output for Arduino DUE UNO Breadboard

USB Buck Boost Converter 5V to 1V-24V 3W DC-DC Step Up Step Down Power Supply Module Voltage Regulator 5V to 3.3V 9V 12V 18V 24V

12V, 9V, 6V, 5V & 3.3V multiple voltage power supply circuit - Gadgetronicx

3.5A DC-DC Converter Module Buck Step-Down Voltage Regulator Board 4. – Many Favours

3.3V 5V 9V 12V AC-DC DC-DC Power Supply Buck Converter Step Down Module

3Pcs Mini DC-DC1.3A Voltage Converter Step Down Module 12V 24V to 5V 3.3V