Thursday, December 6, 2012

tps54425.pdf download Texas Instruments TI pdf datasheet

?D-CAP2?Mode Enables Fast Transient  The TPS54425 is an adaptive on-time D-CAP2?
Response ?Low Output Ripple and Allows Ceramic Output Capacitor  mode synchronous buck converter. The TPS54425 enables system designers to complete the suite of various end equipment抯 power bus regulators with a cost effective, low component count, low standby 
?Wide VIN Input Voltage Range: 4.5 V to 18 V  current solution. The main control loop for the 
?Output Voltage Range: 0.76 V to 5.5 V ?Highly Efficient Integrated FET抯 Optimized for Lower Duty Cycle Applications ?65 m. (High Side) and 55 m. (Low Side)  TPS54425 uses the D-CAP2?mode control which provides a very fast transient response with no external compensation components. The TPS54425 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance 
?High Efficiency, less than 10 霢 at shutdown ?High Initial Bandgap Reference Accuracy ?Adjustable Soft Start  (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V 
?Pre-Biased Soft Start  and 5.5 V. The device also features an adjustable 
?700-kHz Switching Frequency (fSW) ?Cycle By Cycle Over Current Limit  soft start time and a power good function. The TPS54425 is available in the 14-pin HTSSOP package, and designed to operate from ?0癈 to 
?Power Good Output  85癈. 
• Wide Range of Applications for Low Voltage
– Digital TV Power Supply
– High Definition Blu-ray Disc™ Players
– Networking Home Terminal
– Digital Set Top Box (STB)

DatasheetDoc-Texas Instruments TI pdf datasheet download


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