Intersil ISL8036双路3A电源控制解决方案

Intersil公司的ISL8036/ISL8036A是双路3A电流输出的降压电源控制器,工作频率为1MHz (ISL8036)/2.5MHz (ISL8036A),电源电压2.8V-6V,效率高达95%,输出精度2%,电流共享模式可达6A电流,外部同步高达6MHz,内部具有数字软起动1.5ms,主要用在DC/DC POL模块,uC/uP,FPGA和DSP电源,路由器和交换机的插入DC/DC模块,测试和测量系统,锂离子电池供电的设备以及条形码阅读器等.本文介绍了ISL8036/ISL8036A主要特性,方框图,单路输出6A和双路3A输出的典型应用电路和相应的元器件, ISL8036ADUALEVAL1Z评估板主要特性, 电路图,材料清单和元件布局图.

ISL8036/ISL8036A are integrated power controllers rated for dual 3A output current or current sharing operation with a 1MHz (ISL8036)/2.5MHz (ISL8036A) step-down regulator, which is ideal for any low power low-voltage applications. The channels are 180° out-of-phase for input RMS current and EMI reduction. It is optimized for generating low output voltages down to 0.8V each. The supply voltage range is from 2.8V to 6V, allowing for the use of a single Li+ cell, three NiMH cells or a regulated 5V input. The two channels are 180 degrees out of phase, and each one has a guaranteed minimum output current of 3A. They can be combined to form a single 6A output in the current sharing mode. While in current sharing, the interleaved PWM signals reduce input and output ripple.
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