DESCRIPTION
The MP2159 is a monolithic step-down switch mode converter with built-in internal power MOSFETs. It achieves 1A continuous output current from a 2.5V to 6V input voltage with excellent load and line regulation. The output voltage can be regulated as low as 0.6V.
The Constant-On-Time control scheme provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown.
The MP2159 is available in the small TSOT23-8 package and requires a minimum number of readily available standard external components.
The MP2159 is ideal for a wide range of applications including High Performance DSPs, FPGAs, PDAs, and portable instruments.

FEATURES
 Very Low IQ: 17μA
 Default 1.5MHz Switching Frequency
 EN and Power Good for Power Sequencing
 Wide 2.5V to 6V Operating Input Range Output Adjustable from 0.6V
 Up to 1A Output Current
 100% Duty Cycle in Dropout
 118mΩ and 88mΩ Internal Power MOSFET Switches
 Cycle-by-Cycle Over Current Protection
 Short Circuit Protect with Hiccup Mode
 Stable with Low ESR Output Ceramic Capacitors
 Available in a TSOT23-8 Package

APPLICATIONS
 Wireless/Networking Cards
 Portable Instruments
 Battery Powered Devices
 Low Voltage I/O System Power