Five New CMOS Low Dropout Regulators (LDOs) Designed for Powering Microcontroller, DSP, Microprocessors, Memory and Other Digital Cores Two New LDOs Ideal for Powering RF and Analog Applications June 8, 2004 - National Semiconductor Corporation introduced a new generation of seven low dropout (LDO) regulators designed to meet the unique power management needs of digital processor, analog and RF subsystems. National's new LDOs are optimized for cell phones, notebooks, PDAs, MP3 players and ...