●DESCRIPTION
●The TPS54429 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54429 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 TPS54429 uses the D-CAP2™ mode control which provides a very fast transient response with no
●external compensation components. The TPS54429 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. The device operates from 7-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable soft start time and a power good function. The TPS54429 is available in the 14-pin HTSSOP package, and designed to operate from –20°C to 85°C.
●FEATURES
●• D-CAP2™ Mode Enables Fast Transient Response
●• Low Output Ripple and Allows Ceramic Output Capacitor
●• Wide VIN Input Voltage Range: 7 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
●– 63 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
●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)
Part 3D Model
