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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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RT8079 Datasheet(PDF) 4 Page - Richtek Technology Corporation |
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RT8079 Datasheet(HTML) 4 Page - Richtek Technology Corporation |
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4 / 13 page  4 DS8079-01 February 2013 www.richtek.com RT8079 © Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Electrical Characteristics (VIN = 5V, CIN = 10 μF, TA = 25°C, unless otherwise specified) Absolute Maximum Ratings (Note 1) Supply Input Voltage, VIN ----------------------------------------------------------------------------------------- −0.3V to 7V Switch Note Voltage, SW ----------------------------------------------------------------------------------------- −0.3V to (VIN + 0.3V) BOOT to SW --------------------------------------------------------------------------------------------------------- −0.3V to 7V Other Pins ------------------------------------------------------------------------------------------------------------- −0.3V to (VIN + 0.3V) Power Dissipation, PD @ TA = 25 °C WQFN-16L 3x3 ------------------------------------------------------------------------------------------------------ 2.128W Package Thermal Resistance (Note 2) WQFN-16L 3x3, θJA ------------------------------------------------------------------------------------------------- 47°C/W WQFN-16L 3x3, θJC ------------------------------------------------------------------------------------------------ 7.5°C/W Junction Temperature ----------------------------------------------------------------------------------------------- 150 °C Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------- 260 °C Storage Temperature Range -------------------------------------------------------------------------------------- −65°C to 150°C ESD Susceptibility (Note 3) HBM (Human Body Model) ---------------------------------------------------------------------------------------- 2kV Recommended Operating Conditions (Note 4) Supply Input Voltage ------------------------------------------------------------------------------------------------ 2.95V to 6V Junction Temperature Range -------------------------------------------------------------------------------------- −40°C to 125°C Ambient Temperature Range -------------------------------------------------------------------------------------- −40°C t o 85°C Parameter Symbol Test Conditions Min Typ Max Unit Input Power Supply Under Voltage Lockout Threshold VUVLO VIN Rising -- 2.7 2.8 V Under Voltage Lockout Hysteresis ΔVUVLO -- 200 -- mV Quiescent Current IQ Active, VFB = 1V, Not Switching -- 550 800 μA Shutdown Current ISHDN -- 2 5 μA Feedback Voltage Feedback Voltage VFB 0.802 0.827 0.852 V Enable Logic-High VIH Rising -- 1.25 -- EN Input Voltage Threshold Logic-Low VIL Falling -- 1.18 -- V VEN = VIH + 50mV -- −4.6 -- Input Current VEN = VIL − 50mV -- −1.2 -- μA PGOOD Falling (Fault) -- 88 -- PGOOD Rising (Good) -- 93 -- PGOOD Rising (Fault) -- 113 -- Power Good Threshold Voltage PGOOD Falling (Good) -- 107 -- %VREF |
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