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LX8384-00CP Datasheet(PDF) 1 Page - Microsemi Corporation |
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LX8384-00CP Datasheet(HTML) 1 Page - Microsemi Corporation |
1 / 8 page DESCRIPTION KEY FEA TURES s THREE-TERMINAL ADJUSTABLE OR FIXED OUTPUT s GUARANTEED < 1.3V HEADROOM AT 5A (LX8384A-xx) s GUARANTEED 2.0% MAX. REFERENCE TOLERANCE (LX8384A-xx) s GUARANTEED 1.0% MAX. REFERENCE TOLERANCE (LX8384B-xx) s OUTPUT CURRENT OF 5A MINIMUM p 0.015% LINE REGULATION p 0.15% LOAD REGULATION The LX8384/84A/84B Series ICs are posi- tive regulators designed to provide 5A output current. These regulators yield higher efficiency than currently available devices with all internal circuitry designed to operate down to a 1V input-to-output differential. In each of these products, the dropout voltage is fully specified as a function of load current. Dropout is guaranteed at a maximum of 1.3V (8384A) and 1.5V (8384) at maximum output current, decreasing at lower load currents. In addition, on-chip trimming adjusts the reference voltage tolerance to 1% maximum at room temperature and 2% maximum over the 0 to 125°C range for the LX8384A, making this ideal for the Pentium P54C-VRE specification. The LX8384B offers 0.8% tolerance at room temperature and 1.0% maximum over line, load and temperature. Fixed versions are also available and specified in the Available Options table below. The LX8384/84A/84B Series devices are pin-compatible with earlier 3- terminal regulators, such as the 117 series products. While a 10µF output capacitor is required on both input and output of these new devices, this capacitor is generally included in most regulator designs. The LX8384/84A/84B Series quiescent current flows into the load, thereby increasing efficiency. This feature constrasts with PNP regulators where up to 10% of the output current is wasted as quiescent current. The LX8384-xxI is specified over the industrial temperature range of -25°C to 125°C, while the LX8384-xxC/84A-xxC/84B-xxC is specified over the commercial range of 0°C to 125°C. APPLICA TIONS s PENTIUM® PROCESSOR VRE APPLICATIONS s HIGH EFFICIENCY LINEAR REGULATORS s POST REGULATORS FOR SWITCHING POWER SUPPLIES s BATTERY CHARGERS s CONSTANT CURRENT REGULATORS s CYRIX® 6x86TM s AMD-K5TM 5A L OW D ROPOUT P OSITIVE R EGULA TORS P RODUCTION D ATA S HEET T HE I NFINITE P OWER OF I NNOV A TION LX8384-xx/8384A-xx/8384B-xx LIN DOC #: 8384 PRODUCT HIGHLIGHT 3.5V, 5A REGULATOR LX8384A 218 Ω 0.1% 0.1% 3.5V at 5A * Capacitors must have < 20m Ω Total ESR. 5V OUT IN ADJ *1500µF 6MV1500GX Sanyo 1500µF * 5x 6MV1500GX Sanyo 121 Ω Note: All surface-mount packages are available in Tape & Reel, append the letter "T" to part number. (i.e. LX8384A-xxCDDT) "xx" refers to output voltage, please see table above. An application of the LX8384A for the Pentium P54C processors meeting VRE specfication. P ACKAGE ORDER INFORMA TION T A (°C) Plastic TO-220 3-pin P Plastic TO-263 3-pin DD 2.0% 1.5V LX8384-xxCP LX8384-xxCDD 0 to 125 2.0% 1.3V LX8384A-xxCP LX8384A-xxCDD 1.0% 1.3V LX8384B-xxCP LX8384B-xxCDD -25 to 125 2.0% 1.5V LX8384-xxIP LX8384-xxIDD Max. Dropout Voltage Max. Ref. Accuracy LX8384/84A/84B-00 Adjustable LX8384/84A/84B-15 1.5V LX8384/84A/84B-33 3.3V Part # Output Voltage AVAILABLE O PTIONS PER PAR T # Other voltage options may be available — Please contact factory for details. Copyright © 1997 Rev. 1.9 12/97 1 11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570 L IN F INITY M ICROELECTRONICS I NC . IMPORTANT: For the most current data, consult LinFinity's web site: http://www.linfinity.com. |
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