RT8020GQW Datasheet

PMIC - Voltage Regulators - DC DC Switching Regulators


The RT8020GQW is a dual high-efficiency Pulse-WidthModulated (PWM) step-down DC-DC converter. It is capable of delivering 1Aoutput current over a wide input voltage range from 2.5V to 5.5V, the RT8020GQW is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sourceswithin the range such as cellular phones, PDAs and other handheld devices. Two operational modes are available : PWM/Low-Dropout auto-switch and shutdown modes. Internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PWM mode. No external Schottky diode is required in practical application.The RT8020GQW enters Low-Dropout mode whennormalPWM cannot provide regulated output voltage by continuously turning on the upper PMOS. The RT8020GQW enter shutdown mode and consumes less than 0.1mAwhenENpin is pulled low.The switching ripple is easily smoothed-out by small package filtering elements due to a fixed operation frequency of 1.5MHz. This along with small WDFN-12L 3x3 package provides small PCB area application. Other features include soft start, lower internal reference voltage with 2% accuracy, over temperature protection, and over current protection. RT8020GQW Features • +2.5V to +5.5V Input Range• Adjustable Output From 0.6V to VIN• 1.2V, 1.3V, 1.8V, 2.5V and 3.3V Fixed/ Adjustable Output Voltage• 1A Output Current• 95%Efficiency• No Schottky Diode Required• 50uA Quiescent Current per Channel• 1.5MHz Fixed-Frequency PWM Operation• Small 12-Lead WDFN Package• RoHS Compliant and 100% Lead (Pb)-Free RT8020GQW Applications • Mobile Phones• Personal InformationAppliances• Wireless and DSLModems• MP3 Players• Portable Instruments


[{"Name":"Number of Outputs ","Value":"2"},{"Name":"Voltage - Output ","Value":"0.6 V ~ 5.5 V "},{"Name":"Voltage - Input ","Value":"2.5 V ~ 5.5 V "},{"Name":"Frequency - Switching ","Value":"1.5MHz "},{"Name":"Current - Output ","Value":"1A"},{"Name":"Operating Temperature ","Value":"-40°C ~ 85°C "},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

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