The KF7410 is a high-efficiency monolithic synchronous buck regulator using a constant frequency， current mode architecture. The device is
available in an adjustable version. Supply current with no load is 40uA and drops to <1uA in shutdown. The 2.5V to 6V input voltage range makes the KF7410 ideally suited for single Lilon battery powered applications. duty cycle provides low dropout operation, extending battery life in portable systems. PWM/PFM mode operation provides very low output ripple voltage for noise sensitive applications.Switching frequency is intemally set at 1 .5MHz, allowing the use of small surface mount inductors and capacitors. Low output voltages are easily supported with the 0.6V feedback reference voltage.The KF7410 is offered in a low profile (1mm) 5-pin, thin SOT package, and is available in an adjustable version.
Features
High Effciency: Up to 96%
2.5V to 6V Input Voltage Range
1.5MHz Constant Frequency Operation
No Schottky Diode Required
Low Dropout Operation: Duty Cycle
PFM Mode for High Efficiency in Light Load
Max Output Current:1 .5A
Over temperature Protected
Low Quiescent Current: 40μA
Short Circuit Protection
Inrush Current Limit and Soft Start
SOT-23-5 package
Application
Cellular and Smart Phones
Wireless and DSL Modems
PDAs
Portable Instruments
Digital Still and Video Cameras
PC Cards