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EUP3406

Eutech Microelectronics
Part Number EUP3406
Manufacturer Eutech Microelectronics
Description 600mA Synchronous Step-Down Converter
Published Jul 17, 2014
Detailed Description EUP3406 1.5MHz, 600mA Synchronous Step-Down Converter DESCRIPTION The EUP3406 is a constant frequency, current mode, PWM...
Datasheet PDF File EUP3406 PDF File

EUP3406
EUP3406

Overview
EUP3406 1.
5MHz, 600mA Synchronous Step-Down Converter DESCRIPTION The EUP3406 is a constant frequency, current mode, PWM step-down converter.
The device integrates a main switch and a synchronous rectifier for high efficiency.
The 2.
5V to 5.
5V input voltage range makes the EUP3406 ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) battery or 3-cell NiMH/ NiCd batteries.
The output voltage can be regulated as low as 0.
6V.
The EUP3406 supports up to 600mA load current and can also run at 100% duty cycle for low dropout applications, extending battery life in portable systems.
Switching frequency is internally set at 1.
5MHz, allowing the use of small surface mount inductor and capacitors.
The internal synchronous switch increases efficiency while eliminate the need for an external Schottky diode.
The EUP3406 is available in a low profile 5 lead SOT package.
FEATURES z z z z z z z z z z z z z High Efficiency 1.
5MHz Constant Switching Frequency 600mA Available Load Current 270µA Typical Quiescent Current 2.
5V to 5.
5V Input Voltage Range Adjustable Output Voltage as Low as 0.
6V 100% Duty Cycle Low Dropout Operation No Schottky Diode Required Short Circuit and Thermal Protection Over Voltage Protection ¡Õ 1µA Shutdown Current Available in SOT23-5 Package RoHS Compliant and 100% Lead(Pb)-Free APPLICATIONS z z z z z Cellular and Smart Phones Portable Media Players/ MP3 Players Digital Still and Video Cameras Portable Instruments WLAN PC Cards Typical Application Circuit Figure1.
DS3406 Ver1.
2 Nov.
2007 1 EUP3406 Block Diagram Figure2.
Pin Configurations Package Type Pin Configurations SOT23-5 Pin Description PIN EN GND SW VIN VFB Pin 1 2 3 4 5 DESCRIPTION Chip Enable pin.
Forcing this pin above 1.
5V enables the part.
Forcing this pin below 0.
3V shuts down the device.
Do not leave EN floating.
Common ground Switch Node Connection to Inductor.
This pin connects to the drains of the internal main and synchronous power MOSFET switches.
...


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