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BD35390FJ датащи(PDF) 1 Page - Rohm |
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BD35390FJ датащи(HTML) 1 Page - Rohm |
1 / 11 page 1/10 www.rohm.com 2009.10 - Rev.A © 2009 ROHM Co., Ltd. All rights reserved. Hi-performance Regulator IC Series for PCs Termination Regulator for DDR-SDRAMs BD35390FJ ● Description BD35390FJ is a termination regulator compatible with JEDEC DDR1/2/3-SDRAM, which functions as a linear power supply incorporating an N-channel MOSFET and provides a sink/source current capability up to 1A respectively. A built-in high-speed OP-AMP specially designed offers an excellent transient response. Requires 3.3 volts or 5.0 volts as a bias power supply to drive the N-channel MOSFET. Has an independent reference voltage input pin (VDDQ) and an independent feedback pin (VTTS) to maintain the accuracy in voltage required by JEDEC, and offers an excellent output voltage accuracy and load regulation. ● Features 1) Incorporates a push-pull power supply for termination (VTT) 2) Incorporates an enabler 3) Incorporates an under voltage lockout (UVLO) 4) Employs SOP-J8 package : 3.9×4.9×1.375(mm) 5) Incorporates a thermal shutdown protector (TSD) 6) Operates with input voltage from 2.7 to 5.5 volts 7) Compatible with Dual Channel (DDR1, DDR2, DDR3) 8) Incorporates PGOOD function ● Use Power supply for DDR1/2/3 SDRAM ● Absolute Maximum Ratings Parameter Symbol Limit Unit Input Voltage VCC 7 *1*2 V Enable Input Voltage VEN 7 *1*2 V Termination Input Voltage VTT_IN 7 *1*2 V VDDQ Reference Voltage VDDQ 7 *1*2 V Output Current (when pulse is active *3) ITT 1 *1 A Power Dissipation1 Pd1 563 *4 mW Power Dissipation2 Pd2 675 *5 mW Operating Temperature Range Topr -30~+100 ℃ Storage Temperature Range Tstg -55~+150 ℃ Maximum Junction Temperature Tjmax +150 ℃ *1 Should not exceed Pd. *2 Instantaneous surge voltage, back electromotive force and voltage under less than 10% duty cycle. *3 Voltage under less than 10u sec. *4 Reduced by 4.50℃/W for each increase in Ta of 1℃ over 25℃ (when don’t mounted on a heat radiation board) *5 Reduced by 5.40℃/W for each increase in Ta of 1℃ over 25℃ (when mounted on a 70mm×70mm×1.6mm glass epoxy board) ● Operating Conditions(Ta=25℃) Parameter Symbol Limit Unit MIN MAX Input Voltage VCC 2.7 5.5 V Termination Input Voltage VTT_IN 1.0 5.5 V VDDQ Reference Voltage VDDQ 1.0 2.75 V Enable Input Voltage VEN -0.3 5.5 V No.09030EAT25 |
Аналогичный номер детали - BD35390FJ |
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Аналогичное описание - BD35390FJ |
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