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发布者:来自网络 发布时间:2020/9/16 阅读:158次    关键字: DC-DC
AX3901-18V/2A Synchronous Step-Down Converter


AX3901-18V/2A High Efficiency Synchronous Rectified Step-Down DC/DC Converter DataSheet

GENERAL DESCRIPTION
    The AX3901 is a high efficiency synchronous step-down DC/DC converterseries
with 2A continuous output current supplied. A built-in Under Voltage Lockout (UVLO)
circuit is provided to preventstart-up until the input voltage reaches to 4.5V.
In addition, it featuresover-current protection and thermal shutdown.
To improve the light loadefficiency, it is designed as the power saving mode (PSM)
to minimize the switching loss by reducing the switching frequency.
    The AX3901 is available in SOT-23-6L package

FEATURES
-Input Voltage Supply Range from 4.5V to 18V
-Power Saving Mode(PSM)during the light Load Operation
-High Efficiency up to 95%
-Adjustable Output Voltage from 0.6V to 12V
-2A Continuous Output Current
-500kHz Constant Frequency Operation
-Current Mode Operation
-Over-temperature Protection
-Over-current Protection
-Input Under Voltage Lockout(UVLO)
-10µA Shutdown Current
-RoHS Compliant(100% Green Available)

Applications
-Datacom. DSL CPE Graphics Cards
-Set-Top-Box, DVD
-Servers/Networking
-DSP and FPGA Power Supply
-Telecomm Equipment
-DC-DC Regulator Modules
-LCD Monitor and LCD TV

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