TPS62421

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design TPS62420, TPS62421 SLVS676D – JUNE 2006 – REVISED JULY 2015 TPS6242x 2.25-MHz 600-mA and 1000-mA Dual Step-Down Converter in Small 3-mm × 3-mm VSON Package 1 Features 1 High Efficiency up to 95% VIN Range from 2.5 V to 6 V 2.25-MHz Fixed Frequency Operation Output Current 600 mA and 1000 mA Adjustable Output Voltage from 0.6 V to VIN Pin Selectable Output Voltage Supports Simple Dynamic Voltage Scaling Optional EasyScale™ One-Pin Serial Interface for Dynamic Output Voltage Adjustment Power-Save Mode at Light Load Currents 180° Out of Phase Operation Output Voltage Accuracy in PWM Mode ±1% Typical 32-μA Quiescent Current for both Converters 100% Duty Cycle for Lowest Dropout Available in a 10-Pin VSON (3 mm × 3 mm) 2 Applications Cell Phones, Smart-phones PDAs, Pocket PCs OMAP™ and Low Power DSP Supply Portable Media Players Digital Radios Digital Cameras 3 Description The TPS6242x device is a synchronous dual stepdown DC–DC converter. It provides two independent output voltage rails powered by 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The device is also suitable to operate from a standard 3.3-V or 5-V voltage rail. With an input voltage range of 2.5 V to 6 V, the TPS6242x is ideal for battery-powered portable applications like smart phones, PDAs, and other portable equipment. With the EasyScale™ serial interface the output volta...