[原创] TI LP8758四路DC－DC降压电源解决方案

TI公司的LP8758是四路DC/DC降压电源转换器,包含有四个降压DC/DC转换器核,最大输出电流16A,自动PWM-PFM和强迫PWM工作模式,输出电压0.5 V - 3.36 V,由I2C兼容的串口控制,主要用在智能手机,电子书和平板电脑以及游戏机.本文介绍了LP8758-B0主要特性,框图和四相应用配置图,以及评估板LP8758EVM主要特性,电路图,材料清单和PCB设计图.

The LP8758 is designed to meet the power management requirements of the latest application processors in mobile phones and similar portable applications. The device contains four step-down DC-DC converter cores, which are bundled together in a single 4-phase buck converter. The device is controlled by an I2C-compatible serial interface.

The automatic PWM-PFM (AUTO mode) operation, together with the automatic phase adding/shedding, maximizes efficiency over a wide output-current range. The LP8758 supports remote differential voltage sensing to compensate IR drop between the regulator output and the point-of-load, thus improving the accuracy of the output voltage.

The LP8758 supports programmable start-up and shutdown delays synchronized to Enable signal.
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