The MP2161A is a monolithic, step-down, switch-mode converter with built-in internal power MOSFETs. It achieves a 2A continuous output current from a 2.5V to 6V input voltage range with excellent load and line regulation. The output voltage is regulated as low as 0.6V. The constant-on-time (COT) control scheme provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. The MP2161A is available in a small TSOT23-8 package and requires a minimum number of readily available, standard, external components. The MP2161A is ideal for a wide range of applications including high performance DSPs, FPGAs, PDAs, and portable instruments.Very Low IQ: 17µA Default 1.5MHz Switching Frequency 1.5% VFB Accuracy EN and Power Good for Power Sequencing Wide 2.5V to 6V Operating Input Range Output Adjustable from 0.6V Up to 2A Output Current 100% Duty Cycle in Dropout 110m? and 60m? Internal Power MOSFET Switches Cycle-by-Cycle Over-Current Protection Short-Circuit Protection with Hiccup Mode Stable with Low ESR Output Ceramic Capacitors Available in a TSOT23-8 Package