D 3 A, 900 kHz, monolithic synchronous step-down regulator IC
K Step Down Switch Mode Power Supply SMPS
F http://www.st.com/content/ccc/resource/technical/document/datasheet/fb/03/25/5a/eb/45/46/33/CD00169322.pdf/files/CD00169322.pdf/jcr:content/translations/en.CD00169322.pdf