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AOZ1110QI Datasheet(PDF) 4 Page - Alpha & Omega Semiconductors |
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AOZ1110QI Datasheet(HTML) 4 Page - Alpha & Omega Semiconductors |
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4 / 16 page  AOZ1110 Rev. 1.0 October 2010 www.aosmd.com Page 4 of 16 Electrical Characteristics TA = 25°C, VIN = VEN = 3.3V, unless otherwise specified (3) Symbol Parameter Condition Min. Typ. Max. Units VIN Supply Voltage 2.7 5.5 V VUVLO Input Under-Voltage Lockout Threshold VIN rising VIN falling 2.20 2.50 2.30 2.60 V V IIN Supply Current (Quiescent) VFB = 1.0V, L disconnected 1.5 3 mA IOFF Shutdown Supply Current VEN = 0V, Active PGood = 100k Ω Excluding PG current 1 μA VFB Feedback Voltage TA = 25°C TA = -40°C to 85°C 0.792 0.784 0.800 0.800 0.808 0.816 V Load Regulation 0A < Iload < 3A, VIN = 3.3V, VOUT =1 .5V 0.2 % Line Regulation 2.7V < VIN < 5.5V, VOUT = 1.5V Iload = 100mA 0.2 % IFB FB Input Current 200 nA ENABLE VEN EN Input Threshold Off threshold On threshold 1.2 0.4 V V VHYS EN Input Hysteresis 200 mV OSCILLATOR fO Frequency FSEL = VDD 0.85 1.0 1.15 MHz FSEL = GND 425 500 575 kHz DMAX Maximum Duty Cycle(4) 100 % tON_MIN Minimum Controllable on time(4) 200 ns ERROR AMPLIFIER GVEA Error Amplifier Open Loop Voltage gain(4) 60 dB GEA Error Amplifier Transconductance(4) 200 μA / V OVER CURRENT, OVER VOLTAGE AND OVER TEMPERATURE ILIM Current Limit VIN = 3.3V 5 6 7 A Current Limit Response Time(4) 200 ns TLO Short Circuit Latch off Time VFB = 0V 2 ms OVP Over Voltage Protection 115 % OVP Hyteresis 3 % Over-Temperature shutdown limit TJ rising TJ falling 150 100 °C °C OSCILLATOR ISS_OUT Soft Start Pin Source Current SS = 0V, CSS = 0.001μF to 0.1μF 1.5 2.0 3.0 μA ISS_IN Soft Start Pin Sink Current VIN = 2.7V, CSS = 0.001μF to 0.1μF 1.5 3.0 5.0 mA tSS Internal Soft Time CSS = open 500 μs |
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