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 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