TPS54428DDA Datasheet PDF - TI

●The TPS54428DDA is an adaptive on-time D-CAP2™ mode synchronous Buck Converter for use with networking home terminal. The TPS54428 enables system designers to complete the suite of various end-equipment power bus regulators with low component count and low standby current solution. The main control loop for the TPS54428 uses the D-CAP2™ mode control that provides a fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54428 to maintain high efficiency during lighter load conditions. The TPS54428 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 to 18V VIN input. The output voltage can be programmed between 0.76 and 7V.

● D-CAP2™ mode enables fast transient response

● Low output ripple and allows ceramic output capacitor

● Highly efficient integrated FETs optimized for lower duty cycle applications

● High initial bandgap reference accuracy

● Adjustable soft-start

● pre-biased soft-start

● Cycle-by-cycle overcurrent limit

● Auto-skip Eco-mode™ for high efficiency at light load

● High efficiency, less than 10µA at shutdown

● Green product and no Sb/Br