ADI ADP1850双路25A电源转换解决方案

ADI 公司的ADP1850双路可配置输出电流的双路/单路同步降压转换器,每路输出电流可达25A,输入电压VIN2.75V-20V,输出电压从0.6V到90%VIN,可编程频率从200kHz到1.5MHz,两路的相移为180度,两路间的电流共享精度高, −40℃到+85℃内的基准电压精度为±0.85%,主要用在点负载电源,基站和网络设备,消费类电子和仪表以及医疗保健.本文介绍了ADP1850主要特性,方框图,单相和双相的应用电路, 14A和低电流应用电路, 双相50A电流应用电路和ADP1850SP-EVALZ评估板主要特性,电路图和材料清单.

The ADP1850 is a configurable dual output or two-phase, single output dc-to-dc synchronous buck controller capable of running from commonly used 3.3 V to 12 V (up to 20 V) voltage inputs. The device operates in current mode for improved transient response and uses valley current sensing for enhanced noise immunity. The architecture enables accurate current sharing between interleaved phases for high current outputs. The ADP1850 is ideal in system applications requiring multiple output voltages: the ADP1850 includes a synchronization feature to eliminate beat frequencies between switching devices; provides accurate tracking capability between supplies and includes precision enable for simple, robust sequencing.
..

查看全文