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EUP3452A

Eutech Microelectronics
Part Number EUP3452A
Manufacturer Eutech Microelectronics
Description 300KHz Step-Down Converter
Published Jul 18, 2014
Detailed Description EUP3452A 2A,30V,300KHz Step-Down Converter DESCRIPTION The EUP3452A is current mode, step-down switching regulator capab...
Datasheet PDF File EUP3452A PDF File

EUP3452A
EUP3452A


Overview
EUP3452A 2A,30V,300KHz Step-Down Converter DESCRIPTION The EUP3452A is current mode, step-down switching regulator capable of driving 2A continuous load with excellent line and load regulation.
The EUP3452A can operate with an input voltage range from 4.
5V to 30V and the output can be externally set from 0.
8V to 12V with a resistor divider.
Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown.
In shutdown mode the regulator draws 1µA of supply current.
Programmable soft-start minimizes the inrush supply current and the output overshoot at initial startup.
The EUP3452A require a minimum number of external components.
FEATURES z z z z z z z z z z z z 35V Input Surge Protection 2A Output Current 0.
135Ω Internal DMOS Output Switch 4.
5V to 30V Input Operating Range Output Adjustable from 0.
8V to 12V Up to 95% Efficiency 1µA Shutdown Current Fixed 300KHz Frequency Thermal Shutdown and Overcurrent Protection Input Supply Overvoltage and Undervoltage Lockout Available SOP-8 Package RoHS Compliant and 100% Lead(Pb)-Free Halogen-Free APPLICATIONS z z z z VÛm w`R •yÑb € PC Monitors Distributed Power Systems Networking Systems Portable Electronics Typical Application Circuit ww w.
g ofot ech.
com Figure 1.
12V to 3.
3V/5V Application Circuit DS3452A Ver1.
0 Sep.
2010 1 N~§NãtÿmñW3^VÛmw`R•yÑb€g–PQlSø Tel: 0755-8398 3377 / 135 9011 2223 http://www.
gofotech.
com EUP3452A Typical Application Circuit (continued) Figure 2.
24V to 3.
3V/5V Application Circuit Pin Configurations Package Type Pin Configurations SOP-8 VÛm w`R •yÑb € Pin Description Pin Name BS SOP-8 1 DESCRIPTION High-Side Gate Driver Boostrap Supply.
BS provides power to the gate driver of high-side n-channel MOSFET switch.
Connect a 10nF or greater capacitor from SW to BS.
Input Supply Pin.
IN supplies the power to the IC and the high side power switch.
Connect IN to a 4.
5V to 30V power source.
Bypass IN to GND with a suitably large value capacitor to minimize input ripp...


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