It works, BUT the output can be a bit spikey due to the high frequency switching nature of the device. However, it's very efficient because it uses stored energy (in an inductor and a capacitor) to convert the voltage. It has reasonable voltage regulation and output current limiting. It will survive a short circuit and protect the battery. There are many different reasons why you may need a 12V to 5V converter. If you are looking to reduce the supply and create a USB port then the Uctronics converter module could be the perfect solution for you. BTW. in my hands “Fine” didn’t have any ripple at all (< 30 mV up to 900 mA, did not yet test higher currents). I will look into it again to be sure it was a decent measurement. For Fine the minimal input voltage was 6.4V (to obtain an output of 5.1V).

The LM317 is an adjustable voltage regulator IC capable of supplying more than 1.0 Ampere of current with a wide range of o/p voltage from 1.25 Volts to 37 Volts. Its regulation is a little bit better than other fixed voltage-regulator IC like LM7805, 7806, 7808, 7810 … Over 80% of customers feel it is an excellent product. The main point to be aware of is that you’ll need a beefy charging cable to get the higher wattage rating needed for USB-C circuits. Make sure you select the right cable for your needs.A load resistor or output circuit is a must at output end while implementing or testing it in a circuit to prevent zener diode from getting burn. The LT1173 consumes just 110µA supply current at standby, making it ideal for applications where low quiescent current is important. The device can deliver 5V at 80mA from a 3V input in step-up mode or 5V at 200mA from a 12V input in step-down mode. A wide range of IC’s and automation controller devices require 5 V DC supply for their operation, in the absence of 5 volt supply we might be needed to derive it from the existing power supply then comes these linear converter for help. Here’s the list of all possible circuits but their application differs from circuit to circuit. We already discussed 9v to 5v converter circuit previously.

A voltage regulator 12v to 5v dc can also be implemented with an LM7805 linear voltage converter. It is used for (10mA to 1 Amp ) medium current to the high current application circuits. It can handle input between 9V and 36V and put out between 5 and 5.3V depending on the power you put into the module. A high-quality 12V to 5V converter will be able to stabilize the power transformation. A lower quality unit will not. Unfortunately, this means the power supply will fluctuate and these small power surges can be enough to damage your equipment. For getting a steady and zero ripple output voltage, the linear voltage regulators IC’s are used. These are the integrated circuits that are made for linear voltage conversion and regulation are often termed as a step-down transformer ICs. Let’s discuss 12v to 5v DC converter using IC 7805.And the winner is: “Fine”! This module is clearly the best for low power scenarios. When reaching currents of 100mA the differences between the 3 leading modules are minimal. Circuit 4 is a three terminal regulator (IN-COM-OUT). This could represent a dedicated IC (such as a 7805) or a discrete circuit built from op amps / transistors etc. Few points worth mentioning: first, the “Cigar”, with its fixed USB output connector is providing voltage that is too high by proper USB standards. It could be due to old age or just bad quality. The difference is about 10% and I would consider it not usable. Second, most modules are capable of input voltages up to about 25 volts, but few can do 40 volts and higher. Kudos for that. Switching circuit properties Module

The above schematic diagram shows the electrical symbol for a Schottky diode. 12V – 5V Circuit Diagram The power supply for the test was providing 12V, but due to the voltage drop in the ammeter, the input voltage of the modules is a bit lower. Results Here are some electrical properties of the 6 modules. I didn’t have module properties for “Cigar” so the ranges are based on chip specs and could be better than actual module ranges. ModuleThe properly connected heat-ink is a must otherwise it can destroy the IC317. The input voltage must be 1.5V or more than the required output voltage. I calculated the efficiency of each module per each type of load as: eff = Pin/Pout = (Vin*Iin)/(Vout*Iout) However, what if you have a 12 volt power supply available? There are plenty of batteries that offer just 12 volts and you can even get transformers that reduce your home supply to 12 volts. The good news is that you can get a 12V to 5V converter, you simply need to choose the right one. Best 12 Volt to 5 Volt Converters Drok 12v to 5v Converter Drok 12v to 5v Converter

If this isn’t an option then you should take a look at social media and online forums. There are plenty of people online willing to share their experiences. This can help you to make the right decision regarding the best 12V to 5V converter. One 12v battery/ 12V power supply, a 1.6k resistor, 4.7K resistor, 10uF capacitor, 1uF capacitor, IC LM317, a Heat-sink, some connecting wires, breadboard if doing experimentally and a soldering iron. The LT1173 is a versatile micropower DC-DC converter. The device requires only three external components to deliver a fixed output of 5V or 12V. Supply voltage ranges from 2.0V to 12V in step-up mode and to 30V in step-down mode. The LT1173 functions equally well in step-up, step-down or inverting applications.Input voltages are different. Higher current on the input side means higher voltage drop in the ammeter, resulting in a lower input voltage relative to the output of the power supply. It has built-in overload protection, defends against short-circuits, and even protects against over-temperature. Best of all, you simply plug it in and start using it.