EUP3265
DESCRIPTION
The EUP3265 is a high-frequency, high-current synchronous step-down dc-dc converter optimized to supply the different sub systems of smart-phones, Tablets, and portable applications powered by one cell Li- Ion or three cell Alkaline/Ni Cd/Ni MH batteries. The device is able to deliver up to 5A, with programmable output voltage from 0.6 V to 1.4V.
The EUP3265 operates at 3-MHz fixed switching frequency which allows the use of small low cost inductors and capacitors. During light load conditions, the regulator includes a PFM mode to enhance light-load efficiency. The regulator transitions smoothly between PWM and PFM modes. Synchronous rectification and automatic PWM/PFM transitions improve overall efficiency.
The serial interface is patible with Fast/Standard and High-Speed mode I2C specification allowing transfers at up to 3.4 Mbps. This munication interface is used for dynamic voltage scaling with voltage steps down to 6.25 m V, for reprogramming the mode of operation (PFM or...
