EN5311QI

DataSheeT – enpirion® power solutions EN5311QI 1A PowerSoC Step-Down DC-DC Switching Converter with Integrated Inductor DESCRIPTION The Ultra-Low-Profile EN5311QI is targeted to applications where board area and profile are critical. EN5311QI 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 QFN package. The EN5311QI is engineered to simplify design and to minimize layout constraints. 4 MHz switching frequency and internal type III compensation provides superior transient response. With a 1.1 mm 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. FEATURES Revolutionary Integrated Inductor 5mm x 4mm x1.1mm QFN package Very small total solution foot print 4 MHz switching frequency 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% Wide 2.4V to 6.6V input range 1000mA continuous output current Less than 1 µA standby current. Excellent transient performance 3 Pin VID Output Voltage select External divider: 0.6V to VIN-Vdropout 100% duty cycle capable Short circuit and over current protection UVLO an...