TPS62311

` Up to 93% Efficiency at 3-MHz Operation
` Up to 500-mA Output Current at V_I = 2.7 V
` 3-MHz Fixed Frequency Operation
` Best in Class Load and Line Transient
` Complete 1-mm Component Profile Solution
` -0.5% / +1.3% PWM DC Voltage Accuracy Over
    Temperature
` 35-ns Minimum On-Time
` Power-Save Mode Operation at Light Load
    Currents
` Fixed and Adjustable Output Voltage
` Only 86-A Quiescent Current
` 100% Duty Cycle for Lowest Dropout
` Synchronizable On the Fly to External
    Clock Signal
` Integrated Active Power-Down Sequencing
    (TPS6232x only)
` Available in a 10-Pin QFN (3 x 3 mm) and
    Highly Reliable 8-Pin NanoFree™ and
    NanoStar™ (CSP) Packaging

· Cell Phones, Smart-Phones
· WLAN and Bluetooth™ Applications
· Micro DC-DC Converter Modules
· PDAs, Pocket PCs
· USB-Based DSL Modems
· Digital Cameras

The TPS623xx device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS623xx supports up to 500-mA load current and allows the use of tiny, low cost chip inductor and capacitors.
The TPS623xx is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery or by 3-cell NiMH/NiCd batteries. With an output voltage range from 5.4 V down to 0.6 V, the TPS623xx supports the low-voltage TMS320™ DSP family, processors in smart-phones, PDAs as well as notebooks, and handheld computers.
The TPS62300 operates at 3-MHz fixed switching frequency and enters the power-save mode operation tahteligehnttilroeadlocaudrrceunrtrsentot mraanigneta.inFohrighloweffincoieisnecyaopvpeli-r cations, the TPS623xx can be forced into fixed frequency PWM mode by pulling the MODE/SYNC pin high. The device can also be synchronized to an external clock signal in the range of 3 MHz. In the shutdown mode, the current consumption is reduced to less than 1 mA.
The TPS623xx is available in a 10-pin leadless package (3 x 3 mm QFN) and an 8-pin chip-scale package (CSP).