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LX8384-XXCDT Datasheet(PDF) 1 Page - Microsemi Corporation |
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LX8384-XXCDT Datasheet(HTML) 1 Page - Microsemi Corporation |
1 / 11 page Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 1 Copyright © 2000 Rev. 2.1d, 2001-03-15 LX8384x-xx 5A Low Dropout Positive Regulators PRODUCTION A M I CROS E M I COM P A N Y The LX8384/84A/84B Series ICs are positive 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, but they do require input and output capacitors. A minimum 10µF capacitor is required on the input and a 15µF or greater on the output of these new devices for stability. Although, these capacitors are generally included in most regulator designs. The LX8384/84A/84B 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 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. IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com *1500µ F 6M V1500G X Sanyo LX 8384A 121 Ω 0.1% 218 Ω 0.1% IN AD J OU T 5V 3.5 V at 5A 1500µ F 5x 6M V1500G X Sanyo + + * C apacitors must have < 20m Ω T o tal E S R for th e V R E Sp ecifica tion An Application of the LX8384A for the Pentium P54C Processors Meeting VRE Specification. Three-Terminal Adjustable Or Fixed Output Guaranteed < 1.3V Headroom a 5A (LX8384A) Guaranteed 2.0% Max. Reference Tolerance (LX8384A) Guaranteed 1.0% Max. Reference Tolerance (LX8384B) 0.015% Line Regulation 0.15% Load Regulation Pentium ® Processor VRE Application High Efficiency Linear Regulators Power Regulators For Switching Power Supplies Battery Chargers Constant Current Regulators Cyrix ® 6x86™ AMD-K5™ LX8384/84A/84B-00 Adjustable LX8384/84A/84B-15 1.5V LX8384/84A/84B-33 3.3V Table 1 - Available Options TA ( °C) Max Ref Accuracy Max Dropout Voltage DT Plastic TO-252 (D-Pak) 3-Pin P Plastic TO-220 3-Pin DD Plastic TO-263 3-Pin 0 to 125 2.0% 1.5V LX8384-xxCDT LX8384-xxCP LX8384-xxCDD 2.0% 1.3V LX8384A-xxCDT LX8384A-xxCP LX8384A-xxCDD 1.0% 1.3V LX8384B-xxCDT LX8384B-xxCP LX8384B-xxCDD -25 to 125 2.0% 1.5V LX8384-xxIDT LX8384-xxIP LX8384-xxIDD Note: Available in Tape & Reel. Append the letter “T” to the part number. (i.e. LX8384-xxCPT) |
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