The TPS54427 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54427 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 TPS54427 uses the D-CAP2™ mode control which provides a fast transient response with no external compensation components.
●The TPS54427 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 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7 V.
●The device also features an adjustable soft start time.
●The TPS54427 is available in the 8-pin DDA package and 10-pin DRC, and is designed to operate from –40°C to 85°C.
● 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 7.0 V
● Highly Efficient Integrated FETs Optimized
●for Lower Duty Cycle Applications
●– 70 mΩ (High Side) and 53 mΩ (Low Side)
● High Efficiency, Less Than 10 µA at Shutdown
● High Initial Bandgap Reference Accuracy
● Adjustable Soft Start
● Pre-Biased Soft Start
● 650-kHz Switching Frequency (fSW)
● Cycle by Cycle Over Current Limit
