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LX8383B-33CP Datasheet(PDF) 1 Page - Microsemi Corporation |
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LX8383B-33CP Datasheet(HTML) 1 Page - Microsemi Corporation |
1 / 7 page DESCRIPTION KEY FEA TURES s THREE-TERMINAL ADJUSTABLE OR FIXED OUTPUT VOLTAGE s GUARANTEED < 1.3V HEADROOM AT 7.5A (LX8383A/8383B) s GUARANTEED < 1.5V HEADROOM AT 7.5A (LX8383) s OUTPUT CURRENT OF 7.5A MINIMUM p 0.015% LINE REGULATION p 0.15% LOAD REGULATION s EVALUATION BOARD AVAILABLE: REQUEST LXE9001 EVALUATION KIT The LX8383/8383A/8383B series ICs are positive regulators designed to provide 7.5A output current. All internal circuitry is designed to operate down to a 1V in- put-to-output differential, so the LX8383/ 83A/83B can operate with greater effi- ciency than previously available devices. The dropout voltage for each product is fully specified as a function of load cur- rent. Dropout is guaranteed at a maxi- mum of 1.3V for the LX8383A/83B and 1.5V for the LX8383, at maximum output current, decreasing at lower load currents. Fixed versions are also available and speci- fied in the Available Options table below. The LX8383B offers a tighter voltage ref- erence tolerance: 0.8% initial accuracy and 1% over line, load and temperature. The LX8383/83A have 1% initial accuracy and 2% over line, load and temperature. The LX8383/83A/83B series devices are pin-compatible with earlier 3-terminal regulators, such as the 117 series prod- ucts. 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 LX8383/83A/83B series quiescent current flows into the load, thereby increasing efficiency. This feature contrasts with PNP regulators, where up to 10% of the output current is wasted as quiescent current. The LX8383I/8383AI is specified over the industrial temperature range of -25°C to +125°C and the LX8383C/8383AC/8383BC is specified over the commercial range of 0°C to +125°C. 7.5A L OW D ROPOUT P OSITIVE R EGULATORS P RODUCTION D AT A S HEET T HE I NFINITE P OWER OF I NNOV A TION Copyright © 1996 Rev. 1.0 12/96 11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841 LX8383-xx/8383A-xx/8383B-xx LIN D OC #: 8383 1 APPLICA TIONS s PENTIUM® PROCESSOR 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 P ACKAGE ORDER INFORMA TION T A (°C) Plastic TO-220 3-pin P Plastic TO-247 3-terminal V 1.5V LX8383-xxCP LX8383-xxCV 0 to 125 1.3V LX8383A-xxCP LX8383A-xxCV 1.3V LX8383B-xxCP LX8383B-xxCV -25 to 125 1.5V LX8383-xxIP LX8383-xxIV 1.3V LX8383A-xxIP LX8383A-xxIV Application of the LX8383A for the standard voltage (non VRE) Pentium Processor motherboard with less than 130mV dynamic response to a 7.5A load transient. PRODUCT HIGHLIGHT LX8383A 205 Ω 1% 1% 3.38V at 7.5A V IN ≥ 4.75V OUT IN ADJ 1500µF 6.3V 6MV1500GX from Sanyo 2x 330µF, 6.3V Oscon SA type from Sanyo -or- 3x 1500µF, 6.3V 6MV1500GX from Sanyo 121 Ω 3.3V, 7.5A REGULATOR Dropout Voltage FOR FUR THER INFORMA TION CALL (714) 898-8121 LX8383/83A/83B-00 Adjustable LX8383/83A/83B-33 3.3V Part # Output Voltage AVAILABLE O PTIONS PER PAR T # Other voltage options may be available — Please contact factory for details. "xx" refers to output voltage, please see table above. |
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