Free circuit schematics - wiparat.com

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
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This is a circuit 3V to 15V Step-Up DC Converter by LT1073.
It is very nice IC Dc converter or Switching power supply.
15V OUTPUT
27mA AT
VBATTERY = 2V
Please read detail more on image circuit.
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Other Link
9VDC to 3VDC Step-Down DC Converter With LT1073
12V to 28V DC-DC Converter using LM2585
5VDC to 12VDC Step-Up DC Converter using LT1073-12

Here is the switching regulator 12V,so input 5V to output 12V at 0.13A.
It is Step-Up DC Converter by IC LT1073-12 Micropower DC/DC Converter.
I very like IC by http://www.linear.com because it is very small size and good ic.
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