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SHENZHEN GSM ELECTAONIC - 5A 350KHz 25V Buck DC to DC Converter

Numéro de référence GS2678
Description 5A 350KHz 25V Buck DC to DC Converter
Fabricant SHENZHEN GSM ELECTAONIC 
Logo SHENZHEN GSM ELECTAONIC 





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GS2678 fiche technique
5A 350KHz 25V Buck DC to DC Converter
Datasheet
Features
„ Wide 3.6V to 25V Input Voltage Range
„ Output Adjustable from 0.8V to 23V
„ Maximum Duty Cycle 100%
„ Minimum Drop Out 0.6V
„ Fixed 350KHz Switching Frequency
„ 5A Constant Output Current Capability
„ Internal Optimize Power MOSFET
„ High efficiency
„ Excellent line and load regulation
„ TTL shutdown capability
„ EN pin with hysteresis function
„ Built in thermal shutdown function
„ Built in current limit function
„ Built in output short protection function
„ Available in TO-263 package
Applications
„ LCD Monitor and LCD TV
„ Digital Photo Frame
„ Set-up Box
„ ADSL Modem
„ Telecom / Networking Equipment
General Description
The GS2678 is a 350 KHz fixed frequency
PWM buck (step-down) DC/DC converter,
capable of driving a 5A load with high
efficiency, low ripple and excellent line and
load regulation. Requiring a minimum
number of external components, the regulator
is simple to use and include internal
frequency compensation and a
fixed-frequency oscillator.
The PWM control circuit is able to adjust the
duty ratio linearly from 0 to 100%. An enable
function, an over current protection function
is built inside. When short protection function
happens, the operation frequency will be
reduced from 350KHz to 80KHz. An internal
compensation block is built in to minimize
external component count.
Figure1. Package Type of GS2678
wSwHwEN.DZHatEaNShGeSeMt4EUL.EnCeTt AONIC CO.,LTD http://www.086ic.cn tel:0755-81275006 mob:13424297678
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