The Intel® Enpirion® EN29A0QI 10A PowerSoC DC-DC step-down power converter is designed to power supply rails requiring very low ripple, low EMI, and tight DC and AC accuracy. The device is optimized specifically to meet the stringent requirements for Intel® FPGA and SoC transceivers, as well as transceivers for other FPGA and ASIC devices. The EN29A0QI delivers high conversion efficiency while maintaining excellent accuracy.
The EN29A0QI utlizes a high-performance control loop that enables a significant reduction in bulk capacitor decoupling requirements. Bulk decoupling capacitors such as Poly-tantalum or OSCON can introduce reliability concerns, so reduction of these not only saves cost and space, but also improves system reliability. The low impedance loop enables the use of thin-film precision resistors which exhibit superior long-term stability and reliability. In addition, the EN29A0QI is highly integrated and designed, characterized, and qualified as a power system, which further enables improved system level reliability.
The EN29A0QI provides a high degree of programmability. This includes programmable startup and shutdown timing, and programmable switching frequency, which allows the user to optimize the trade-offs between ripple and efficiency. The EN29A0QI also features a precision enable and POK to optimize sequencing, and a bi-directional SYNC pin that enables the device to output a master clock or synchronize to another EN29A0QI or an external system clock.