■ General Description
LN5019 is a current mode monolithic buck switching  regulator. Operating with an input range of 4.5V~40V, the  LN5019 delivers 800mA of continuous output current with  two integrated N-Channel MOSFETs. The internal  synchronous power switches provide high efficiency without  the use of an external Schottky diode. At light loads, the  regulator operates in low frequency to maintain high  efficiency and low output ripple. Current mode control  provides tight load transient response and cycle-by-cycle  current limit.  The LN5019 guarantees robustness with short-circuit  protection, thermal protection, current run-away protection,  and input under voltage lockout.  The LN5019 is available in 6-pin SOT23-6 package,  which provides a compact solution with minimal external  components.
■ Package
? SOT-23-6L
■ Features  
? 4.5V to 40V Input Voltage Range 800mA output current
? High Efficiency: Up to 95%
? No Schottky Diode Required
? 0.2V Reference
? Slope Compensated Current Mode Control for  Excellent Line and Load Transient Response
? Integrated internal compensation
? Stable with Low ESR Ceramic Output Capacitors
? Input under voltage lockout
? Short circuit protection
? Thermal Shutdown
? Inrush Current Limit and Soft Start
? -40°C to +125°C Temperature Range
■ Applications
? Distributed Power Systems
? Automotive Systems
? High Voltage Power Convertion
? Industrial Power Systems
? Battery Powered Systems