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RT8026 Datasheet(PDF) 3 Page - Richtek Technology Corporation |
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RT8026 Datasheet(HTML) 3 Page - Richtek Technology Corporation |
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3 / 12 page  RT8026 3 DS8026-02 March 2011 www.richtek.com Absolute Maximum Ratings (Note 1) Supply Input Voltage ------------------------------------------------------------------------------------------------------ 6.5V EN, FB Pin Voltage ------------------------------------------------------------------------------------------------------- −0.3V to VIN Power Dissipation, PD @ TA = 25 °C MSOP-10 -------------------------------------------------------------------------------------------------------------------- 833mW Package Thermal Resistance (Note 2) MSOP-10, θJA -------------------------------------------------------------------------------------------------------------- 120°C/W Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260 °C Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C Junction Temperature ----------------------------------------------------------------------------------------------------- 150 °C ESD Susceptibility (Note 3) HBM (Human Body Mode) ---------------------------------------------------------------------------------------------- 2kV MM (Machine Mode) ------------------------------------------------------------------------------------------------------ 200V Electrical Characteristics (VIN = 3.6V, VOUT = 2.5V, VREF = 0.6V, L = 2.2 μH, CIN = 4.7μF, COUT = 10μF, TA = 25°C unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Quiescent Current IQ IOUT = 0mA, VFB = VREF + 5% -- 50 70 μA Shutdown Current ISHDN EN = GND -- 0.1 1 μA Reference Voltage VREF For Adjustable Output Voltage 0.588 0.6 0.612 V Adjustable Output Range VOUT (Note 6) 1 -- VIN − 0.2V V Output Voltage Accuracy ΔVOUT VIN = VOUT + ΔV to 5.5V 0A < IOUT < 1A (Note 5) −3 -- +3 % FB Input Current IFB VFB = VIN −50 -- 50 nA PMOSFET RON RDS(ON)_P IOUT = 200mA, VIN = 3.6V -- 0.28 -- Ω NMOSFET RON RDS(ON)_N IOUT = 200mA, VIN = 3.6V -- 0.25 -- Ω P-Channel Current Limit ILIM_P VIN = 2.7V to 5.5 V 1.2 1.5 -- A EN High-Level Input Voltage VEN_H VIN = 2.7V to 5.5V 1.5 -- -- V EN Low-Level Input Voltage VEN_L VIN = 2.7V to 5.5V -- -- 0.4 V Under Voltage Lock Out threshold UVLO -- 1.8 -- V UVLO Hysteresis -- 0.1 -- V Oscillator Frequency fOSC VIN = 3.6V, IOUT = 100mA 1.2 1.5 1.8 MHz Thermal Shutdown Temperature TSD -- 160 -- °C Max. Duty Cycle 100 -- -- % Recommended Operating Conditions (Note 4) Supply Input Voltage, VIN ------------------------------------------------------------------------------------------------ 2.7V to 5.5V Junction Temperature Range -------------------------------------------------------------------------------------------- −40°C to 125°C Ambient Temperature Range -------------------------------------------------------------------------------------------- −40°C to 85°C |
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