描述 Description

The EN5311QI is a 1A PowerSoC Synchronous Buck Regulator with integrated inductor. The ultra-low-profile regulator is targeted to applications where board area and profile are critical. It is a complete power conversion solution requiring only two low cost ceramic MLCC caps. Inductor, MOSFETS, PWM and compensation are integrated into a tiny 5mm x 4mm x 1.1mm. Engineered to simplify design and to minimize layout constraints. 4MHz switching frequency and internal type III compensation provides superior transient response. With a 1.1mm profile, the EN5311QI is ideal for space and height constrained applications. A 3-pin VID output voltage selector provides seven pre-programmed output voltages along with an option for external resistor divider. Output voltage can be programmed on-the-fly to provide fast, dynamic voltage scaling.

特性 Features

·Revolutionary integrated inductor
·Very small total solution foot print
·Only two low cost MLCC caps required
·Designed for low noise/low EMI
·Very low ripple voltage, 5mVp-p typical
·High efficiency up to 95%
·<1μA Standby current
·Excellent transient performance
·3-pin VID output voltage select
·0.6V to VIN-Vdropout external divider

應(yīng)用 Application

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