TPS54426PWPR

4.5V至18V输入， 4 -A同步降压SWIFT ™转换器具有Eco-Mode ™ 4.5V to 18V Input, 4-A Synchronous Step-Down SWIFT™ Converter with Eco-Mode™

DESCRIPON

The TPS54426 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54426 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54426 uses the D-CAP2™ mode control which provides a very fast transient response with no external compensation components.

FEATURES

• D-CAP2™ Mode Enables Fast Transient Response

• Low Output Ripple and Allows Ceramic Output Capacitor

• Wide VIN Input Voltage Range: 4.5 V to 18 V

• Output Voltage Range: 0.76 V to 5.5 V

• Highly Efficient Integrated FET’ s Optimized for Lower Duty Cycle Applications

– 65 mΩ High Side and 55 mΩ Low Side

• High Efficiency, less than 10 μA at shutdown

• High Initial Bandgap Reference Accuracy

• Adjustable Soft Start

• Pre-Biased Soft Start

• 700-kHz Switching Frequency fSW

• Cycle By Cycle Over Current Limit

• Power Good Output

• Auto-Skip Eco-mode™ for High Efficiency at Light Load

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