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发布者:来自网络 发布时间:2019/4/2 阅读:508次    关键字: DC-DC
AX3055-Wide input Range CC/CV Step-down Converter


AX3055-Wide input Range CC/CV Step-down Converter DataSheet  AEC-Q100

GENERAL DESCRIPTION
TheAX3055isa step down PWM converterwith a driving dual output current to4.8A.It is designed to allow for operating a wide supply voltage range from8V to 40V. Theexternal shutdown function can be controlled by logic level to pull COMPpin down, and thencomes into standby mode. The external compensation makes feedback control have goodline and load regulation with flexible external design.
TheAX3055operates in the CC (Constant outputCurrent) mode or CV (Constantoutput Voltage) mode, and the OCP current value is set by current sensing resisters.
TheAX3055is suitable for the DC/DC switching power applications when requestedthe current limit function. The devices are available inQFN5*5-20Lpackageand require
very few external devices for operation.

FEATURES
-VINOperatewith8V ~ 40V Supply Voltage
-VOUTAccuracy (VREF=1.0V) ±1.0%
-Dual-Channeling CC/CV Mode Control
-External Current Limit Settingfor 2 channel
-Thermal, Over voltageand ShortCircuitProtection
-Internal Soft Start ~3ms
-Fixed Frequency120KHz
-UVLO Protection (min=7V, typ=7.5V, max=8V)
-Duty Cycle Range(0~93%)
-Single Pin to External Compensation and Shutdown Control
-COUTMLCC support.
-Built in AdjustableCable-Compensation
-QFN5*5-20LPackage
-RoHS and Halogen free compliance

APPLICATION
-Car Charger
-High-Brightness Lighting
-Portable Charger Devices
-General-Purpose DC/DC Controller with Current Limit


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