1.5MHz 600mA Synchronous Step-Down Converter CMD8506

The CMD8506 is a 1.5MHz constant frequency, slope compensated current mode PWM synchronous step-down converter. High switching frequency allows the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. It is ideal for powering portable equipment which runs from a single cell Lithium-Ion battery. 100% duty cycle provides low dropout operation, extending battery life in portable systems. Low

CMD8506 FEATURES

** High efficiency : Up to 96%

** Output Current: 600mA（Typ）

** 1.5MHz Constant Switching Frequency

** No Schottky Diode Required

** Input Voltage: 2.5V to 5.5V

** Output Voltage:1.2V,1.5V,1.8V & Adjustable

** Low Dropout: 100% duty Cycle

** Low Quiescent Current: 300μA

** Shutdown Current: <1μA

** Current Mode Operation for Excellent Line and Load Transient Response

** Built-in Thermal Protection

** Short Circuit Protection

** Package: SOT23-5

APPLICATIOn

** Cellular and Smart Phones；

** Personal Information Appliances；

** Wireless and DSL Modems；

** Portable Instruments；

** Digital Still and Video Cameras；

** Microprocessors Core Supplies；