EN5311QI-E

EN5311QI-E is an evaluation board for EN5311QI, 1A point of load DC to DC buck converter with integrated inductor which represents a revolution in low power switching converters. The total solution footprint is 36mm2, without compromising efficiency. A complete PowerSoC, the EN5311QI integrates power switches, Inductor, gate drive, controller and loop compensation in a tiny 4mm x 5mm x 1.1mm, 20 lead QFN package. The 1.1mm profile and small footprint enables the use of this part where space is at a premium. A 3pin 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. This power management IC is an excellent choice for low power applications that require a small solution footprint, high efficiency, exceptional thermal performance, low noise, high reliability and ease of use.

• Revolutionary integrated inductor
• 2.4V to 6.6V input range
• Up to 95% peak efficiency
• Excellent transient response, low ripple
• Requires only two MLC filter capacitors (0805)
• 3pin VID output voltage programming
• Designed for low noise/low EMI
• 4MHz switching frequency
• 100% duty cycle capable

Applications

Power Management, Portable Devices

Warnings

Be mindful of the polarity. Even though the evaluation board comes with reverse polarity protection diodes, it is rarely a good idea to reverse the input polarity.