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RT9266GX5 Datasheet(PDF) 5 Page - Richtek Technology Corporation |
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RT9266GX5 Datasheet(HTML) 5 Page - Richtek Technology Corporation |
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5 / 14 page  RT9266 5 DS9266-12 May 2007 www.richtek.com Absolute Maximum Ratings l Supply Voltage --------------------------------------------------------------------------------------------------- −0.3V to 7V l LX Pin Switch Voltage ------------------------------------------------------------------------------------------ −0.3V to 7V l Other I/O Pin Voltages ------------------------------------------------------------------------------------------ −0.3V to (V DD + 0.3V) l LX Pin Switch Current ------------------------------------------------------------------------------------------- 2.5A l EXT Pin Driver Current ------------------------------------------------------------------------------------------ 200mA l Package Thermal Resistance SOT-23-6, θJC-----------------------------------------------------------------------------------------------------145°C/W SOT-89-5, θJC-----------------------------------------------------------------------------------------------------45°C/W l Operating Junction Temperature ------------------------------------------------------------------------------ 125 °C l Storage Temperature Range ----------------------------------------------------------------------------------- −65°C to +150°C Electrical Characteristics (VIN = 1.5V, VDD set to 3.3V, Load Current = 0, TA = 25° C, unless otherwise specified) NOTE: Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under any conditions. Moreover, such values for any two items must not be reached simultaneously. Operation above these absolute maximum ratings may cause degradation or permanent damage to the device. These are stress ratings only and do not necessarily imply functional operation below these limits Parameter Symbol Test Conditions Min Typ Max Units Start-UP Voltage VST IL = 1mA -- 0.98 1.05 V Operating VDD Range VDD VDD pin voltage 2 -- 6 V Shutdown Current I (VIN) IOFF EN Pin = 0V, VIN = 4.5V -- 0.01 1 µA Switch-off Current I (VDD) ISWITCH OFF VIN = 6V -- 17 25 µA Continuous Switching Current ISWITCH VIN = EN = 3.3V, VFB = GND 0.4 0.55 0.7 mA No Load Current I (VIN) INO LOAD VIN = 1.5V, VOUT = 3.3V -- 75 * -- µA Feedback Reference Voltage VREF Close Loop, VDD = 3.3V 1.225 1.25 1.275 V Switching Frequency FS VDD = 3.3V 425 500 575 kHz Maximum Duty DMAX VDD = 3.3V 85 95 -- % LX ON Resistance VDD = 3.3V -- 0.3 1.1 Ω Current Limit Setting ILIMIT VDD = 3.3V 1.6 2 2.6 ** A EXT ON Resistance to VDD VDD = 3.3V -- 5 8.5 Ω EXT ON Resistance to GND VDD = 3.3V -- 5 8.5 Ω Line Regulation ∆VLINE VIN = 3.5 ~ 6V, IL = 1mA -- 1.5 10 mV/V Load Regulation ∆VLOAD VIN = 2.5V, IL = 1 ~ 100mA -- 0.25 *** -- mV/mA EN Pin Trip Level VDD = 3.3V 0.4 0.8 1.2 V Temperature Stability for Vout TS -- 50 -- ppm/°C Thermal Shutdown Hysterises ∆TSD -- 10 -- °C |
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