德信 EUP3265 3MHz同步降压DC-DC转化器
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/NiCd/NiMH 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 compatible with Fast/Standard and High-Speed mode I2C specification allowing transfers at up to 3.4 Mbps. This communication interface is used for dynamic voltage scaling with voltage steps down to 6.25 mV, for reprogramming the mode of operation (PFM or Forced PWM) or disable/enabling the output voltage.
APPLICATIONS
● Smart Phones
● Tablets
● Low-Voltage DSPs and Processors Core Power Supplies
