Wednesday, December 5, 2012

tps54620.pdf download Texas Instruments TI pdf datasheet

FEATURES  ?Adjustable Input Undervoltage Lockout 
?Integrated 26m. / 19m. MOSFETs  ?Supported by SwitcherPro?Software Tool 
?Split Power Rail: 1.6V to 17V on PVIN ?200kHz to 1.6MHz Switching Frequency  ?For SWIFT?Documentation and SwitcherPro? visit 
?Synchronizes to External Clock ?0.8V ?% Voltage Reference Over Temperature ?Low 2uA Shutdown Quiescent Current ?Monotonic Start-Up into Pre-biased Outputs ??0� to 150� Operating Junction Temperature Range 
?High Density Distributed Power Systems ?High Performance Point of Load Regulation ?Broadband, Networking and Optical Communications Infrastructure 
?Adjustable Slow Start/Power Sequencing 
?Power Good Output Monitor for Undervoltage 
and Overvoltage 
The TPS54620 in thermally enhanced 3.5mm x 3.5mm QFN package is a full featured 17V, 6A synchronous step
down converter which is optimized for small designs through high efficiency and integrating the high-side and
low-side MOSFETs. Further space savings are achieved through current mode control, which reduces
component count, and by selecting a high switching frequency, reducing the inductor's footprint.
The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone
power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and
the open drain power good pins.
Cycle by cycle current limiting on the high-side FET protects the device in overload situations and is enhanced
by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit
which turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part
when die temperature exceeds thermal shutdown temperature.

DatasheetDoc-Texas Instruments TI pdf datasheet download


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