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APA18T12 Datasheet(PDF) 5 Page - Astec America, Inc |
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APA18T12 Datasheet(HTML) 5 Page - Astec America, Inc |
5 / 17 page Model: APA18T12 Series Date: June 2004 SH 5 OF 17 Technical Reference Note APA18T12 DC - DC Series Preliminary OUTPUT SPECIFICATIONS Parameter Device Symb Min Typ Max Unit Output Voltage Set point VIN = VIN, MIN to VIN,MAX; IO =IO,Max VO,SET 0.74 0.75 0.76 Vdc Output Regulation Line: VIN = VIN, min to VIN, max Load: IO = IO, min to IO, max Temp: TA = -40 ºC to +85ºC All 0.75V 0.75<Vo<3.3V 3.3V ≤Vo All - - - - - - - - - - - - 0.5 7.0 15.0 25.0 1.0 % mV mV mV % Ripple and Noise2 Peak-to-Peak: (5Hz to 20MHz) 0.75 ≤Vo<5.0V 5V ≤Vo - - - - 45 55 60 75 mVp-p mVp-p Output Current and output power3 0.75 ≤Vo<4.16V 4.16V ≤Vo Io Po 0 0 - - 18 75 A W External Load Capacitance Capacitor ESR All - - 10 - - 5000 - µF m Ω Output Current-limit Inception VOUT = 90% VO,SET 4,9,10 1.5V ≤Vo IO 18.5 - - A Over Temperature Range6 (AVG. PCB TEMP) All - 100 110 125 °C Efficiency VIN = VIN-NOM IO = IO,MAX ; TA=25°C 0.75V 1.20V 1.50V 1.80V 2.50V 3.30V 5.00V η η η η η η η 73.6 81.0 83.8 85.5 88.0 90.3 92.6 74.8 82.0 84.5 86.5 89.0 92.4 93.5 % % % % % % % Turn-On Response Time5 VIN = VIN-MIN to VIN-MAX All - 2.0 - 6.0 ms Enable to Output Turn-ON Delay VIN = VIN-MIN to VIN-MAX IO = IO,MIN to IO,MAX All - - - 20.0 ms +VIN to Output Turn-On Delay Enable Pin: Active VIN = VIN-MIN to VIN-MAX IO = IO,MIN to IO,MAX All - - - 20.0 ms Switching Frequency All - 270 300 330 KHz Output Overshoot at T-on / T-off Passive Resistive Full Load All - - - 5 %Vo |
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