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ACE50249BM+ Datasheet(PDF) 5 Page - ACE Technology Co., LTD. |
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ACE50249BM+ Datasheet(HTML) 5 Page - ACE Technology Co., LTD. |
5 / 12 page ACE502 Technology 400mA CMOS Low Dropout Voltage Low consumption Regulator VER 1.2 5 ACE502-3.3V Parameter Symbol Conditions Min Typ Max Units Input Voltage VIN 8 V Output Voltage VOUT VIN=VOUT+1.0V,IOUT=40mA 3.234 3.3 3.366 V Maximum Output Current IOUT(Max.) VIN=VOUT+1.0V,VOUT>3.3*0.95 400 mA IOUT=100Ma 200 400 Input-Output Voltage Differential Dropout Voltage IOUT=200mA 400 600 mV Line Regulation ΔVOUT / ΔVIN•VOUT IOUT=40mA 3.5≦VIN≦8A 0.2 0.3 %/V Load Regulation ΔVOUT VIN=4.3V 1mA≦IOUT≦100mA 20 40 mA Quiescent Current Iq VIN=VOUT+1V 7 10 uA Output Noise Noise f=10Hz to 100kHz, COUT=1μF 40 uVrms Ripple Rejection PSRR f=100Hz,IOUT=40mA, COUT=1μF 60 dB Output Voltage Temperature Coefficient ΔVOUT / ΔT•VOUT 50 ppm/℃ Typical Application Circuit ACE502 Vin Vin Vout Vout GND + 1uF + 1uF Cin Cout Application hints: Note 1:Input capacitor (Cin=1uF) is recommended in all application circuit. Tantalum capacitor is recommended. Note 2:Output capacitor (Cout=1uF) is recommended in all application to assure the stability of circuit. Tantalum capacitor is recommended. Explanation: ACE502 is a series of low dropout voltage and low power consumption three pins regulator. Its application circuit is very simple, which only needs two outside capacitors. It is composed of these modules: high accuracy voltage reference, current limit circuit, error amplifier, output driver and power transistor. Current Limit module can keep chip and power system away from danger when load current is more than 400mA. ACE502 uses trimming technique to assure the accuracy of output value within±2%, at the same time, temperature compensated is elaborately considered in this chip, which makes ACE502 ’s temperature coefficient within 50ppm/℃. |
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