9V to 3V Step-Down Converter by LT1073
I want mini size switching regulator,so it input voltage 9V to 3V Step-Down Converter circuit. The LT1073 is good idea,it used for dc to dc converter. if want it,please read in http://www.linear.com . Vout 3V at 100mA, L1 100?H , D1 – Diode 1N5818 or equiv Detail more,please in image. …
Easy Power Supply Regulator 3.3V 1A  with PNP Transistor
The is Fix dc voltage regulator about 3.3V at 1A,so easy very circuit. I used normal electronics part,so used PNP transistor 2N456 or TIP42 or TIP2955,etc. If do you want other dc voltage,you must change ZD1 : 5.6V for 5V out put. I made use of a 6.3Vac transformer,The output …
3V 3A Regulator Switching by LM2576
I build this project when I have a problem to driver stepping motor that draw current 3A at 3V.After search the infomation on the internet I have found LM2576-ADJ which is an adjustable output version of 3A Step-Down Voltage switching Regulator and capable of driving 3A load with excellent line …