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EUP3291 - 2.25MHz Synchronous Step-Down DC/DC Regulator

General Description

The EUP3291 is synchronous step-down DC-DC converters optimized for battery powered portable applications.

The 2.7V to 5.5V input voltage range makes EUP3291 ideal for powering portable equipment that runs from 1-cell Li-Ion or 3-cell NiMH/NiCD batteries.

Key Features

  • High Efficiency Up to 95% 2.25MHz Constant Switching Frequency 1.5A 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 Package RoHS Compliant and 100% Lead(Pb)-Free Halogen-Free.

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Datasheet Details

Part number EUP3291
Manufacturer Eutech Microelectronics
File Size 81.72 KB
Description 2.25MHz Synchronous Step-Down DC/DC Regulator
Datasheet download datasheet EUP3291 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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EUP3291 1.5A, 2.25MHz Synchronous Step-Down DC/DC Regulator DESCRIPTION The EUP3291 is synchronous step-down DC-DC converters optimized for battery powered portable applications. The 2.7V to 5.5V input voltage range makes EUP3291 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 EUP3291 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 EUP3291 has internal soft start and avoids inrush current during startup.