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RT5047A Datasheet(PDF) 4 Page - Richtek Technology Corporation |
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RT5047A Datasheet(HTML) 4 Page - Richtek Technology Corporation |
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4 / 16 page  RT5047A Copyright © 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS5047A-01 November 2016 4 Absolute Maximum Ratings (Note 1) Supply Input Voltage, VIN------------------------------------------------------------------------------------------- 0.3V to 28V Output Voltage LNB, LX and BOOST Pins --------------------------------------------------------------------- 0.3V to 30V Others Pin to GND ---------------------------------------------------------------------------------------------------- 0.3V to 6V Power Dissipation, PD @ TA = 25C SOP-8 (Exposed pad) ------------------------------------------------------------------------------------------------ 3.44W Package Thermal Resistance (Note 2) SOP-8 (Exposed pad), JA------------------------------------------------------------------------------------------29C/W SOP-8 (Exposed pad), JC------------------------------------------------------------------------------------------2C/W Lead Temperature (Soldering, 10 sec.)-------------------------------------------------------------------------- 260C Junction Temperature ------------------------------------------------------------------------------------------------ 150C Storage Temperature Range --------------------------------------------------------------------------------------- 65C to 150C ESD Susceptibility (Note 3) HBM (Human Body Model) -----------------------------------------------------------------------------------2kV Recommended Operating Conditions (Note 4) Supply Input Voltage ------------------------------------------------------------------------------------------------- 8V to 16V Ambient Temperature Range--------------------------------------------------------------------------------------- 40C to 85C Junction Temperature Range -------------------------------------------------------------------------------------- 40C to 125C Electrical Characteristics (VIN (typ.) = 12V, VIN = 8V to 16V, TA = 25C, unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit General LNB Output Accuracy, Load and Line Regulation ERR Relative to selected VLNB target level, ILNB = 0 to 450mA 3 -- 3 % Supply Current IIN_OFF EN = 0, LNB output disabled -- 0.3 0.5 mA IIN_ON EN = 1, VLNB = 18.3V, Tone = 0V -- 10 18 mA IIN_ON EN = 1, VLNB = 18.3V, 22kHz TONE Input -- 16 28 mA Boost Switch On Resistance RDS(ON) ILNB = 450mA -- 150 300 m Switching Frequency fSW 600 700 800 kHz Switch Current Limit ILIMSW VIN = 10V, VLNB = 20.5V -- 3 -- A Linear Regulator Voltage Drop VDROP VBOOST-VLNB, ILNB = 450mA -- 0.85 -- V Output Voltage Rise Time TR_LNB For VLNB = 13.3V18.3V, CLNB = 100nF, ILNB = 450mA -- 3 10 ms Output Voltage Pull-Down Time TF_LNB For VLNB = 18.3V13.3V, CLNB = 100nF, ILNB = 0mA -- 3 10 ms |
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