• Home
  • Products
  • > Power Management
  • > DC/DC Switching Regulator
  • > Step-Down (Buck) Converter/ Controller


2A, 2.25MHz Synchronous Step-Down DC/DC Regulator


The EUP3260A is synchronous step-down DC-DC converters optimized for battery powered portable applications. The 2.7V to 5.5V input voltage range makes EUP3260A ideal for powering portable equipment that runs from 1-cell Li-Ion or 3-cell NiMH/NiCD batteries. The device is also suitable to

operate from a standard 3.3V or 5V voltage rail.

The EUP3260A operates at 2.25MHz fixed switching frequency allowing the use of small inductors and capacitors to achieve a small solution size. The internal synchronous switch increases efficiency and eliminates the need for an external schottky diode.

The EUP3260A has internal soft start and avoids inrush current during startup.

The EUP3260A has a user able mode of forced PWM and PFM/PWM mode. The forced PWM mode operation provides the lowest ripple noise and the PFM mode operation provides high efficiency at light loads.

The EUP3260A is available in SOT23-5 and TDFN-6 package.


  • • High Efficiency Up to 95%
  • • 2.25MHz Constant Switching Frequency
  • • 2A Available Load Current
  • • 30μA Typical Quiescent Current
  • • 2.7V to 5.5V Input Voltage Range
  • • Adjustable Output Voltage as Low as 0.6V
  • • No Schottky Diode Required
  • • Short Circuit and Thermal Protection
  • • Internal Soft Start Function
  • • Available in TDFN-6 and SOT23-5 Packages
  • • RoHS Compliant and 100% Lead(Pb)-Free Halogen-Free


  • • SSD Module
  • • Smart Phones
  • • Tablet PC
  • • Portable Media Players
  • • μC/μP, FPGA and DSP Power
  • • Plug-in DC/DC Modules for Routers and Switchers
Copyright  ©  2014  Eutech Microelectronics Inc. All Rights Reserved.
Designed by: iware 網頁設計