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RT8048 Datasheet(PDF) 4 Page - Richtek Technology Corporation |
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RT8048 Datasheet(HTML) 4 Page - Richtek Technology Corporation |
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4 / 11 page  RT8048 4 DS8048-01 June 2011 www.richtek.com Absolute Maximum Ratings (Note 1) Supply Input Voltage, VIN ---------------------------------------------------------------------------------------------- 6.5V Power Dissipation, PD @ TA = 25 °C WDFN-6L 2x2 ------------------------------------------------------------------------------------------------------------- 0.833W Package Thermal Resistance (Note 2) WDFN-6L 2x2, θJA ------------------------------------------------------------------------------------------------------- 120°C/W Lead Temperature (Soldering, 10 sec.) ----------------------------------------------------------------------------- 260 °C Junction Temperature --------------------------------------------------------------------------------------------------- 150 °C Storage Temperature Range ------------------------------------------------------------------------------------------- −65°C to 150°C ESD Susceptibility (Note 3) HBM ------------------------------------------------------------------------------------------------------------------------ 2kV MM -------------------------------------------------------------------------------------------------------------------------- 200V Recommended Operating Conditions (Note 4) Supply Input Voltage, VIN ---------------------------------------------------------------------------------------------- 2.5V to 5.5V Junction Temperature Range ------------------------------------------------------------------------------------------ −40°C to 125°C Ambient Temperature Range ------------------------------------------------------------------------------------------ −40°C to 85°C Electrical Characteristics Parameter Symbol Test Conditions Min Typ Max Unit Quiescent Current IQ -- 81 -- μA Reference Voltage VREF 0.588 0.6 0.612 V VIN Rising -- 2.3 -- Under Voltage Lockout Threshold VUVLO VIN Falling -- 2.1 -- V Shutdown Current ISHDN -- 0.1 1 μA Switching Frequency fOSC -- 3 -- MHz Logic-High VIH 1.5 -- VIN EN Input Threshold Voltage Logic-Low VIL -- -- 0.4 V Thermal Shutdown Temperature TSD -- 140 -- °C Switch On Resistance, High RPFET ILX = 0.2A -- 250 -- m Ω Switch On Resistance, Low RNFET ILX = 0.2A -- 260 -- m Ω Peak Current Limit ILIM -- 1.5 -- A Output Voltage Line Regulation VIN = 2.5V to 5.5V -- -- 1 %/V Output Voltage Load Regulation 0mA < ILOAD < 0.6A -- -- 1 % (VIN = 3.6V, TA = 25 °C unless otherwise specified) |
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