TPS62021DGQ_1072146

` Up to 95% Conversion Efficiency
` Typical Quiescent Current: 18 A
` Load Current: 600 mA
` Operating Input Voltage Range: 2.5 V to 6.0 V
` Switching Frequency: 1.25 MHz
` Adjustable and Fixed Output Voltage
` Power Save Mode Operation at Light load Currents
` Active-Low MODE pin on TPS62021
` 100% Duty Cycle for Lowest Dropout
` Internal Softstart
` Dynamic Output Voltage Positioning
` Thermal Shutdown
` Short-Circuit Protection
` 10 Pin MSOP PowerPad™ Package
` 10 Pin QFN 3 X 3 mm Package

· PDA, Pocket PC and Smart Phones
· USB Powered Modems
· CPUs and DSPs
· PC Cards and Notebooks
· xDSL Applications
· Standard 5-V to 3.3-V Conversion

(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2) All voltage values are with respect to network ground terminal.

The TPS62020 is a high efficiency synchronous step-down dc-dc converter optimized for battery pow-ered portable applications. This device is ideal for portable applications powered by a single Li-Ion battery cell or by 3-cell NiMH/NiCd batteries. With an output voltage range from 6.0 V down to 0.7 V, the device supports low voltage DSPs and processors in PDAs, pocket PCs, as well as notebooks and subnotebook computers. The TPS62020 operates at a fixed switching frequency of 1.25 MHz and enters the power save mode operation at light load currents to maintain high efficiency over the entire load current range. For low noise applications, the TPS62020 can be forced into fixed frequency PWM mode by pulling the MODE pin high. The difference between the TPS62020 and the TPS62021 is the logic level of the MODE pin. The TPS62021 has an active-low MODE pin. The TPS62020 supports up to 600-mA load current.