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RT4533 Datasheet(PDF) 4 Page - Richtek Technology Corporation |
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RT4533 Datasheet(HTML) 4 Page - Richtek Technology Corporation |
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4 / 11 page  4 RT4533/A www.richtek.com DS4533/A-02 September 2015 © Copyright 2015 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Electrical Characteristics 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 (VIN = 3.6V, CIN = 4.7 μF, COUT = 1μF, L = 22μH, fSW = 1.1MHz, TA = 25°C, unless otherwise specified) Absolute Maximum Ratings (Note 1) VIN ---------------------------------------------------------------------------------------------------------------------- −0.3V to 6V EN, FB to GND ------------------------------------------------------------------------------------------------------- −0.3V to (VIN + 0.3V) LX to GND ------------------------------------------------------------------------------------------------------------- −0.3V to 38V VOUT to GND ---------------------------------------------------------------------------------------------------------- −0.3V to 40V Power Dissipation, PD @ TA = 25 °C TSOT-23-6 ------------------------------------------------------------------------------------------------------------- 0.5W Package Thermal Resistance (Note 2) TSOT-23-6, θJA ------------------------------------------------------------------------------------------------------- 197.4°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 MM (Machine Model) ----------------------------------------------------------------------------------------------- 200V Parameter Symbol Test Conditions Min Typ Max Unit Power Supply IC Operating Current (switching) IQ_SW VFB = 0V 0.25 0.8 1.5 mA IC Quiescent Current (non-switching) IQ VFB = 0.4V 0.25 0.35 0.5 mA VIN Pin Shutdown Current ISD EN = GND -- 0.3 1 A Under-Voltage Lockout Threshold, UVLO VIN Rising Edge 2.25 2.37 2.5 V Under-Voltage Lockout Hysteresis UVLO_hys VIN Falling Edge -- 80 -- mV Enable and Reference Control Logic-High VIH 1.4 -- -- EN Input Voltage Logic-Low VIL -- -- 0.4 V EN Pull Low Resistance REN -- 300 -- k EN Minimum Shut down Pulse Width Toff 20 -- -- ms EN Minimum Logic High Pulse Width THigh_Min 0.5 -- -- s EN Minimum logic low pulse width TLow 1 -- 10000 s Internal Comp Resistance Rcomp -- 7 -- M PWM Minimum Duty Dpwm min -- 3 -- % PWM Frequency fPWM 5 -- 100 kHz |
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