Multiple-output power-supply ICs support LCD panels

Maxim and Linear Technology have introduced multiple-output power-supply integrated circuits (IC) that support liquid crystal display (LCD) panels. Maxim has introduced the MAX17014A multiple-output power-supply IC that generates all the supply rails for the thin-film transistor (TFT) LCD panels in television (TV) sets and monitors, operating from a regulated 12-V input. It includes a stepdown and a stepup regulator, a positive and a negative charge pump, two operational amplifiers, and a proprietary dual-mode logic-controlled high-voltage switch control block. It can operate from 8-V-16-V input voltages and is optimized for LCD TV panel and LCD monitor applications, running directly from 12-V supplies. The MAX17014A also provides soft-start functions, to limit inrush current during startup, along with adjustable power-up tuning.