For high-performance digital ICs such as FPGAs, DSPs, microcontrollers, and ASICs, the trend is for higher currents and lower voltages. More efficient, switching regulators have traditionally been used to power these devices however they have noise and layout limitations, so LDOs have come into play. These LDO’s must have a high output current capability, low output noise, fast response time, high PSRR, and excellent thermal performance. In addition, system debugging features are an added bonus.

