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EAGLE Library Object
|Uploaded by:||Juergen Messerer|
|Remarks:||This library is a part of the archive file m-pad-2.1.zip|
Show other files in the archive
|Download options:||Download whole archive|
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( 2,969.6 KiB )
|Description:||Ti's TPS623** 500-mA, 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER|
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 device 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
device supports low-voltage DSPs and processors in smart-phones, PDAs as well as notebooks, and
The TPS62300 operates at 3-MHz fixed switching frequency 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 device 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 uA. The TPS623xx is available in a 10-pin leadless
package (3 ´ 3 mm QFN) and an 8-pin chip-scale package (CSP).
Features: Up to 93% Efficiency at 3-MHz Operation Up to 500-mA Output Current at VI = 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-uA 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 8-Pin NanoFree and NanoStar (CSP) Packaging APPLICATIONS Cell Phones, Smart-Phones WLAN and Bluetooth Applications Micro DC-DC Converter Modules PDAs, Pocket PCs USB-Based DSL Modems Digital Cameras
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