Single inductor DC-DC converter with bipolar outputs using charge pump. - Kenji Takahashi; Hajime Yokoo; Shyunsuke Miwa; Kengo Tsushida; Hiroyuki Iwase; Kazuki Murakami; Nobukazu Takai; Haruo Kobayashi 001; Takahiro Odaguchi; Shigeki Takayama; Isao Fukai; Jun-Ichi Matsuda (APCCAS, 2010)