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GRM188R71E103KA01J Datasheet(PDF) 6 Page - International Rectifier |
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GRM188R71E103KA01J Datasheet(HTML) 6 Page - International Rectifier |
6 / 46 page - 6 - JANURARY 18, 2013 | DATA SHEET | Rev 3.5 6 IR3898 6A Highly Integrated SupIRBuck TM Single-Input Voltage, Synchronous Buck Regulator PD-97662 ELECTRICAL SPECIFICATIONS RECOMMENDED OPERATING CONDITIONS FOR RELIABLE OPERATION WITH MARGIN SYMBOL MIN MAX UNITS Input Voltage Range* PVin 1.0 21 V Input Voltage Range** Vin 5 21 Supply Voltage Range*** VCC 4.5 7.5 Supply Voltage Range Boot to SW 4.5 7.5 Output Voltage Range VO 0.5 0.86xVin Output Current Range IO 0 ±6 A Switching Frequency FS 300 1500 kHz Operating Junction Temperature TJ -40 125 °C *Maximum SW node voltage should not exceed 25V. ** For internally biased single rail operation. When Vin drops below 6.8V, the internal LDO enters dropout. Please refer to Smart LDO section and Over Current Protection for detailed application information. ***Vcc/LDO_Out can be connected to an external regulated supply. If so, the Vin pin should be connected to Vcc/LDO_Out pin. ELECTRICAL CHARACTERISTICS Unless otherwise specified, these specifications apply over, 6.8V < Vin = PVin < 21V, Vref = 0.5V in 0°C < TJ < 125°C. Typical values are specified at Ta = 25°C. PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT Power Stage Power Losses PLOSS Vin = 12V, VO = 1.2V, IO = 6A, Fs = 600kHz, L = 1uH, Vcc = 6.4V, Note 4 0.85 W Top Switch Rds(on)_Top VBoot-Vsw= 6.4V,IO= 6A,Tj=25°C 17.5 22.5 mΩ Bottom Switch Rds(on)_Bot Vcc = 6.4V, IO = 6A, Tj=25°C 11.4 14.8 Bootstrap Diode Forward Voltage I(Boot) = 10mA 180 260 470 mV SW Leakage Current ISW SW = 0V, Enable = 0V 1 µA SW = 0V, Enable = high, Vp = 0V Dead Band Time Tdb Note 4 5 10 30 ns Supply Current VIN Supply Current (standby) Iin(Standby) EN = Low, No Switching 100 µA VIN Supply Current (dynamic) Iin(Dyn) EN = High, Fs = 600kHz, Vin = PVin = 21V 11 15 mA Vcc/ LDO_Out Output Voltage Vcc Vin(min) = 6.8V, Icc = 0-30mA, Cload = 2.2uF, DCM = 0 6.0 6.4 6.7 V Vin(min) = 6.8V, Icc = 0-30mA, Cload = 2.2uF, DCM = 1 4.0 4.4 4.8 LDO dropout Voltage Vcc_drop Icc=30mA,Cload=2.2uF 0.7 V |
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