tps54425.pdf
| FEATURES | DESCRIPTION |
| ?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. |
APPLICATIONS
• Wide Range of Applications for Low Voltage
System
– 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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