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RT8223MZQW Datasheet(PDF) 7 Page - Richtek Technology Corporation |
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RT8223MZQW Datasheet(HTML) 7 Page - Richtek Technology Corporation |
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7 / 24 page  RT8223L/M 7 DS8223L/M-04 April 2011 www.richtek.com Electrical Characteristics To be continued (VIN = 12V, VEN = VENC = 5V, VENTRIP1 = VENTRIP2 = 2V, No Load, TA = 25 °C, unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Input Supply VIN Standby Current IVIN_SBY VIN = 6V to 25V, ENTRIPx = GND -- 200 -- μA VIN Shutdown Supply Current IVIN_SHDN VIN = 6V to 25V, ENTRIPx = EN = GND -- 20 40 μA Quiescent Power Consumption PVIN +PPVCC Both SMPS On, VFBx = 2.1V, SKIPSEL = GND, VOUT1 = 5V, VOUT2 = 3.3V (Note 5) -- 5 7 mW SMPS Output and FB Voltage FBx Voltage VFBx DEM Mode 1.975 2 2.025 V PWM Mode (Note 6) -- 2 -- Ultrasonic Mode -- 2.032 -- Output Voltage Adjust Range VOUTx SMPS1, SMPS2 2 -- 5.5 V VOUTx Discharge Current VOUTx = 0.5V, VENTRIPx = 0V 10 45 -- mA On-Time On-Time Pulse Width tON TONSEL = GND VOUT1 = 5.05V (200kHz) 1895 2105 2315 ns VOUT2 = 3.33V (250kHz) 999 1110 1221 TONSEL = REF VOUT1 = 5.05V (300kHz) 1227 1403 1579 VOUT2 = 3.33V (375kHz) 647 740 833 TONSEL = VREG5 VOUT1 = 5.05V (400kHz) 895 1052 1209 VOUT2 = 3.33V (500kHz) 475 555 635 Minimum Off-Time tOFF VFBx = 1.9V 200 300 400 ns Ultrasonic Mode Frequency SKIPSEL = VREG5 or VREG3 22 33 -- kHz Soft-Start Soft-Start Time tSSx Internal Soft-Start -- 2 -- ms Current Sense ENTRIPx Source Current IENTRIPx VENTRIPx = 0.9V 9.4 10 10.6 μA ENTRIPx Current Temperature Coefficient TCIENTRIPx In Comparison with 25°C (Note 6) -- 4700 -- ppm/°C ENTRIPx Adjustment Range VENTRIPx = IENTRIPx x RENTRIPx -- -- 3 V Current Limit Threshold GND − PHASEx, VENTRIPx = 2V 180 200 220 mV Zero-Current Threshold GND − PHASEx in DEM -- 3 -- mV |
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