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YB1685SPX8P Datasheet(PDF) 1 Page - YOBON TECHNOLOGIES,INC. |
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YB1685SPX8P Datasheet(HTML) 1 Page - YOBON TECHNOLOGIES,INC. |
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1 / 9 page  YB1685 2A 380KHz 32V PWM Buck DC/DC Converter YB1685 Rev.1.0 www.yobon.com.tw 1 Description The YB1685 is a 380 KHz fixed frequency monolithic step down switch mode regulator with a built in internal Power MOSFET. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation. The device includes a voltage reference, oscillation circuit, error amplifier, internal PMOS and etc. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function and a short circuit protection function are built inside. An internal compensation block is built in to minimize external component count. The YB1685 serves as ideal power supply units for portable devices. Features 2A Constant Output Current 140mΩ RDSON Internal Power PMOSFET Switch Up to 92% Efficiency Fixed 380KHz Frequency Wide 3.6V to 32V Input Voltage Range Output Adjustable from 1.235V to 30V Output Current Protection Built in Frequency Compensation Built in Thermal Shutdown Function Built in Current Limit Function SOP8 Package is Available The Minimum Dropout up to 0.3V Pb-free Package Applications Portable DVD LCD Monitor / TV Battery Charger ADSL Modem Telecom / Networking Equipment Typical Application Circuit Figure 1: Typical Application Circuit |
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