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. 100% 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:100% 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

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