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AP4306
胡袁熙
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Description The AP4306 is a highly integrated solution for a constant voltage/constant current mode SMPS application. The AP4306 contains one 1.21V voltage reference， one low voltage reference used in current sensing circuit and two operational amplifiers. The 1.21V voltage reference， combined with one operational amplifier， makes of an ideal voltage controller for use in adapters and battery chargers. The low voltage reference， combined with another operational amplifier， makes of an ideal current limiter for output low side current sensing. The AP4306 is fully compatible with AP4305 in functionality and electrical characteristics except its lower reference voltage for current control loop， thus higher power efficiency in SMPS applications such as low power charger can be realized with AP4306 compared to AP4305. The AP4306 is available in SOT26 package.
Features Constant Voltage and Constant Current Control Precision Internal Voltage Reference Low External Component Count Easy Compensation Low Supply Current： 0.5mA Current Control Loop Reference A Version： 70mV B Version： 100mV C Version： 150mV Operating Temperature Range： -40 to +105oC Operating Supply Voltage： 2.5V to 18V Totally Lead-free & Fully RoHS Compliant （Note1 & 2） Halogen and Antimony Free. “Green” Device （Note 3）
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