The RICHTEK IC is high quality!  4.5V to 30V Input Voltage Range
 3A Output Current
 Internal N-MOSFETs
 Current Mode Control
 Fixed Frequency Operation : 500kHz
 Adjustable Output Voltage from 0.8V to 24V
 High Efficiency Up to 95%
 Stable with Low ESR Ceramic Output Capacitors
 Cycle-by-Cycle Current Limit
 Input Under-Voltage Lockout
 Output Under-Voltage Protection
 Thermal Shutdown Protection
 Adjustable Current Limit
 Power Saving Mode for High Efficiency at Light Load
 RoHS Compliant and Halogen Free
Applications
 Distributed Power Systems
 Pre-Regulator for Linear Regulators
 Notebook Computers
 Point of Load Regulator in Distributed Power System
 Digital Set-top Boxes
 Personal Digital Recorders
 Broadband Communications
 Flat Panel TVs and Monitors
 Vehicle Electronics