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 = 82μH GOWANDA GA10-822k
OR CADDELL-BURNS 7300-12
Read Detail in Site Source:
http://www.linear.com/pc/downloadDocument.do?
navId=H0,C1,C1003,C1042,C1031,C1060,P1272,D1661
http://www.elecfree.com/electronic/15v-to-5v-low-noise-step-up-converter-by-lt1073/