TPS54226PWPR Datasheet PDF - TI

●DESCRIPTION

●The TPS54226 is a adaptive on-time D-CAP2™ mode synchronous buck converter. TheTPS54226 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 TPS54226 uses the D-CAP2™ mode control which provides a fast transient response with no external compensation components. The adoptive on-time control supports seamless operation between PWM mode at heavy load condition and reduced frequency Eco-Mode™ operation at light load for high efficiency.

●FEATURES

●• D-CAP2™ Mode Enables Fast Transient Response

●• Low Output Ripple and Allows Ceramic Output Capacitor

●• Wide VCC Input Voltage Range: 4.5 V to 18 V

●• Wide VIN Input Voltage Range: 2 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

●   – 160 mΩ (High Side) and 110 mΩ (Low Side)

●• High Efficiency, less than 10 μA at shutdown

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

●• 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 Mode

●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)