The Texas Instruments TPS62420 device is a synchronous dual step-down 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.

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 Easy Scale 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)

DC/DC Switching Regulator Converters (Integrated Switch), Texas Instruments

The range of highly integrated high-efficiency switching voltage regulators from Texas Instruments includes Step-up (Boost), Step-down (Buck), Step-up/down (Boost/Buck) and Inverting types providing efficient solutions for every DC Voltage Regulator application.