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RT8020DPQW Datasheet(PDF) 4 Page - Richtek Technology Corporation |
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RT8020DPQW Datasheet(HTML) 4 Page - Richtek Technology Corporation |
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4 / 14 page  RT8020 4 DS8020-03 August 2007 www.richtek.com Absolute Maximum Ratings (Note 1) l Supply Input Voltage, VIN1, VIN2 ---------------------------------------------------------------------------------- −0.3V to 6.5V l EN1, FB1, LX1, EN2, FB2 and LX2 Pin Voltage -------------------------------------------------------------- −0.3V to VIN + 0.3V l Power Dissipation, PD @ TA = 25 °C WDFN-12L 3x3 ------------------------------------------------------------------------------------------------------- 1.667W l Package Thermal Resistance (Note 4) WDFN-12L 3x3, θJA -------------------------------------------------------------------------------------------------- 60°C/W WDFN-12L 3x3, θJC ------------------------------------------------------------------------------------------------- 8.2°C/W l Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------- 260 °C l Junction Temperature ----------------------------------------------------------------------------------------------- 150 °C l Storage Temperature Range --------------------------------------------------------------------------------------- −65°C to 150°C l ESD Susceptibility (Note 2) HBM (Human Body Mode) ----------------------------------------------------------------------------------------- 2kV MM (Machine Mode) ------------------------------------------------------------------------------------------------ 200V Electrical Characteristics Parameter Symbol Test Conditions Min Typ Max Units Channel 1 and Channel 2 Input Voltage Range VIN 2.5 -- 5.5 V Under Voltage Lock Out threshold UVLO -- 1.8 -- V Hysteresis -- 0.1 -- V Quiescent Current IQ IOUT = 0mA, VFB = VREF + 5% -- 50 70 µA Shutdown Current ISHDN EN = GND -- 0.1 1 µA Reference Voltage VREF For Adjustable Output Voltage 0.588 0.6 0.612 V Adjustable Output Voltage Range VOUT (Note 6) VREF -- VIN −∆V V ∆VOUT VIN = 2.5V to 5.5V, VOUT = 1.2V 0A < IOUT < 1A −3 -- +3 % ∆VOUT VIN = 2.5V to 5.5V, VOUT = 1.3V 0A < IOUT < 1A −3 -- +3 % ∆VOUT VIN = 2.5 to 5.5V, VOUT = 1.8V 0A < IOUT < 1A −3 -- +3 % ∆VOUT VIN = VOUT + ∆V to 5.5V (Note 5) VOUT = 2.5V, 0A < IOUT < 1A −3 -- +3 % Output Voltage Accuracy Fix ∆VOUT VIN = VOUT + ∆V to 5.5V (Note 5) VOUT = 3.3V, 0A < IOUT < 1A −3 -- +3 % To be continued Recommended Operating Conditions (Note 3) l Supply Input Voltage ------------------------------------------------------------------------------------------------ 2.5V to 5.5V l Junction Temperature Range -------------------------------------------------------------------------------------- −40°C to 125°C l Ambient Temperature Range -------------------------------------------------------------------------------------- −40°C to 85°C (VIN = 3.6V, VOUT = 2.5V, VREF = 0.6V, L = 2.2uH, CIN = 4.7uF, COUT = 10uF, TA = 25° C, IMAX= 1A unless otherwise specified) |
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