TPS54339DDAR Datasheet PDF - TI

●DESCRIPTION

●The TPS54339 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54339 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54339 uses the D-CAP2™ mode control that provides a fast transient response with no external compensation components. The TPS54339 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra low ESR ceramic capacitors.

●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 23 V

●• Output Voltage Range: 0.76 V to 7 V

●• Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications

●   – 140 mΩ (High Side) and 70 mΩ (Low Side)

●• High Efficiency, less than 10 μA at shutdown

●• High Initial Bandgap Reference Accuracy

●• Adjustable Soft Start

●• Pre-Biased Soft Start

●• 600-kHz Switching Frequency (fSW)

●• Cycle By Cycle Over Current Limit

●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)