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AP1604 Datasheet(PDF) 3 Page - Anachip Corp |
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AP1604 Datasheet(HTML) 3 Page - Anachip Corp |
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3 / 7 page  AP1604 PWM/PFM Dual Mode Step-down DC/DC Converter Anachip Corp. www.anachip.com.tw Rev.1.1 Jun. 27, 2005 3/7 Electrical Characteristics VIN=5V, VOUT＝2V, Load=300mA, Ta=25°C Sym. Parameter Conditions Min. Typ. Max. Units VFB FB 0.975 1.0 1.025 V VIN Input Voltage 2.2 - 5.5 V Line Regulation VIN=2.2~5.5V, Load=10mA - - 0.12 % Load Regulation IOUT=10~800mA - - 1.2 % VUVLO UVLO Voltage（min. operating voltage） VCC, voltage required to maintain H at VOUT - - 2 V ICC Operating Current CE/SS=VIN, No Load - 100 150 µA ICCQ Supply Current No external components, CE/SS=VIN, VFB=1.2V - 90 120 µA ISTB Stand-by Current No external components, CE/SS=0V, VFB=0V - 2 - µA ICL Current Limit peak current VIN=5V, VOUT=2V 800 1000 1200 mA Fosc Oscillator Frequency Load=300mA, VIN=5V, VOUT=2V 500 600 700 kHz MAXDTY Maximum Duty Ratio 85 90 - % PFMDTY PFM Duty Ratio No load 15 25 35 % VCEH CE/SS ”High” Voltage Apply 1.4V (min.) to CE/SS, determine VOUT ”High” 1.4 - - V VCEL CE/SS ”Low” Voltage Same as VCEH, determine VOUT/”Low” - - 0.6 V EFFI Efficiency VCC=5V, VOUT=3.3V, Load=300mA - 93 - % Rdson Rdson Condition IOUT=300mA, VIN=5V, VOUT=2V - 350 450 mΩ Typical Performance Characteristics Vcc v.s. Operating Current Vcc v.s. Quiescent Current 0 20 40 60 80 100 120 140 160 180 200 2.5 3 3.5 4 4.5 5 5.5 Vcc (V) 0 20 40 60 80 100 120 140 160 180 200 2.533.5 44.555.5 Vcc (V) |
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