供应TPS54428DDAR 原装 DC-DC

TPS54428DDAR 原装 DC-DC

TPS54428 4.5-V to 18-V Input, 4-A Synchronous Step-Down Converter With Eco-Mode™

TPS54428DDAR 原装 DC-DC 的技术参数：

TPS54428DDAR 原装 DC-DC 的描述：

The TPS54428 is an adaptive on-time D-CAP2™mode synchronous buck converter.

The TPS54428 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 TPS54428 uses the DCAP2™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-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7.0 V. The device also features an adjustable soft start time. The TPS54428 is available in 8-pin DDA package and 10-pin DRC packages, and is designed to operate over the ambient temperature range of–40°C to 85°C.