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.

3V to 12V Step-Up DC Converter by IC LT1073-12
My cousin want buy IC dc converter,I like IC from www.linear.com because good ic,low cost and easy to used. He are want 3V to 12V DC converter or switching power supply(switching-regulator). ...
5V to 12V Step-Up DC Converter by 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 ...
1.5V to 5V Low Noise Step-Up Converter by LT1073
Here is Circuit DC to DC Converter Low Noise. OR Circuit 1.5V to 5V Low Noise Step-Up Converter. Using IC LT1073. 1.5V INPUT BATT 5V OUTPUT 20mVP-P RIPPLE R 1% METAL FILM L1 = 82H G ...
5V to 15V Step-Up Converter with IC LT1073
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3V to 5V Step-Up Converter with Undervoltage Lockout by LT1073
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