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CM3706

1.5MHz, 600mA Synchronous Step-Down Regulator

GENERALDESCRIPTION TheCM3706isa1.5MHzconstantfrequency,slopecompensatedcurrentmodePWMstep-downconverter.ThedeviceintegratesamainswitchandasynchronousrectifierforhighefficiencywithoutanexternalSchottkydiode.Itisidealforpoweringportableequipmentthatrunsfr

CM3706

1.5MHz, 600mA Synchronous Step-Down Regulator; ◆ High Efficiency: Up to 96%\n◆ 1.5Mhz Constant Switching Frequency\n◆ 600mA Output Current at VIN=3V\n◆ Integrated Main switch and synchronous rectifier. No Schottky Diode Required\n◆ 2.5V to 5.5V Input Voltage Range\n◆ Output Voltage as Low as 0.6V\n◆ 100% Duty Cycle in Dropout\n◆ Low Quiescent Current: 300μA\n◆ Slope Compensated Current Mode Control for Excellent Line and Load Transient Response\n◆ Short Circuit Protection\n◆ Thermal Fault Protection\n◆ <1uA Shutdown Current\n◆ Space Saving 5-Pin Thin TSOT23 package;

GENERAL DESCRIPTION\nThe CM3706 is a 1.5MHz constant frequency, slope compensated current mode PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell lithium-Ion (Li+) battery. The CM3706 can supply 600mA of load current from a 2.5V to 5.5V input voltage. The output voltage can be regulated as low as 0.6V. The CM3706 can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. Idle mode operation at light loads provides very low output ripple voltage for noise sensitive applications. The CM3706 is offered in a low profile (1mm) 5-pin, thin TSOT package, and is available in an adjustable version.FEATURES\n◆ High Efficiency: Up to 96%\n◆ 1.5Mhz Constant Switching Frequency\n◆ 600mA Output Current at VIN=3V\n◆ Integrated Main switch and synchronous rectifier. No Schottky Diode Required\n◆ 2.5V to 5.5V Input Voltage Range\n◆ Output Voltage as Low as 0.6V\n◆ 100% Duty Cycle in Dropout\n◆ Low Quiescent Current: 300μA\n◆ Slope Compensated Current Mode Control for Excellent Line and Load Transient Response\n◆ Short Circuit Protection\n◆ Thermal Fault Protection\n◆ <1uA Shutdown Current\n◆ Space Saving 5-Pin Thin TSOT23 packageAPPLICATIONS\n◆ Cellular and Smart Phones\n◆ Microprocessors and DSP Core Supplies\n◆ Wireless and DSL Modems\n◆ PDAs\n◆ MP3 Players\n◆ Portable Instruments\n◆ Digital Still and Video Cameras\n

CM3706A

1.5MHz, 600mA Synchronous Step-Down Regulator

GENERALDESCRIPTION TheCM3706Aisahighefficiencymonolithicsynchronousbuckregulatorusingaconstantfrequency,currentmodearchitecture.Thedeviceisavailableinanadjustableversion.Supplycurrentwithnoloadis300uAanddropsto FEATURES ◆HighEfficiency:Upto96

CM3706AGIM25

1.5MHz, 600mA Synchronous Step-Down Regulator

GENERALDESCRIPTION TheCM3706Aisahighefficiencymonolithicsynchronousbuckregulatorusingaconstantfrequency,currentmodearchitecture.Thedeviceisavailableinanadjustableversion.Supplycurrentwithnoloadis300uAanddropsto FEATURES ◆HighEfficiency:Upto96

CM3706AGIM25

1.5MHz, 600mA Synchronous Step-Down Regulator; ◆ High Efficiency: Up to 96%\n◆ 1.5Mhz Constant Switching Frequency\n◆ 600mA Output Current at VIN=3V\n◆ Integrated Main switch and synchronous rectifier. No Schottky Diode Required\n◆ 2.5V to 6.5V Input Voltage Range\n◆ Output Voltage as Low as 0.6V\n◆ 100% Duty Cycle in Dropout\n◆ Low Quiescent Current: 300μA\n◆ Slope Compensated Current Mode Control for Excellent Line and Load Transient Response\n◆ Short Circuit Protection\n◆ Thermal Fault Protection\n◆ <1uA Shutdown Current\n◆ Space Saving 5-Pin Thin TSOT23 package;

GENERAL DESCRIPTION\nThe CM3706A 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 300uA and drops to <1uA in shutdown. The 2.5V to 6.5V input voltage range makes the CM3706A ideally suited for single Li-Ion, two to four AA battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. PWM pulse skipping mode operation provides very low output ripple voltage for noise sensitive applications. Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage.FEATURES\n◆ High Efficiency: Up to 96%\n◆ 1.5Mhz Constant Switching Frequency\n◆ 600mA Output Current at VIN=3V\n◆ Integrated Main switch and synchronous rectifier. No Schottky Diode Required\n◆ 2.5V to 6.5V Input Voltage Range\n◆ Output Voltage as Low as 0.6V\n◆ 100% Duty Cycle in Dropout\n◆ Low Quiescent Current: 300μA\n◆ Slope Compensated Current Mode Control for Excellent Line and Load Transient Response\n◆ Short Circuit Protection\n◆ Thermal Fault Protection\n◆ <1uA Shutdown Current\n◆ Space Saving 5-Pin Thin TSOT23 packageAPPLICATIONS\n◆ Cellular and Smart Phones\n◆ Microprocessors and DSP Core Supplies\n◆ Wireless and DSL Modems\n◆ PDAs\n◆ MP3 / MP4 Player\n◆ Portable Instruments\n◆ Digital Still and Video Cameras

CM3706GIM25

1.5MHz, 600mA Synchronous Step-Down Regulator

GENERALDESCRIPTION TheCM3706isa1.5MHzconstantfrequency,slopecompensatedcurrentmodePWMstep-downconverter.ThedeviceintegratesamainswitchandasynchronousrectifierforhighefficiencywithoutanexternalSchottkydiode.Itisidealforpoweringportableequipmentthatrunsfr

CM3706IM25

1.5MHz, 600mA Synchronous Step-Down Regulator

GENERALDESCRIPTION TheCM3706isa1.5MHzconstantfrequency,slopecompensatedcurrentmodePWMstep-downconverter.ThedeviceintegratesamainswitchandasynchronousrectifierforhighefficiencywithoutanexternalSchottkydiode.Itisidealforpoweringportableequipmentthatrunsfr

CM3706A

1.5MHz, 600mA Synchronous Step-Down Regulator;