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JAN7812K Datasheet(PDF) 1 Page - Microsemi Corporation |
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JAN7812K Datasheet(HTML) 1 Page - Microsemi Corporation |
1 / 8 page SG78xxA/78xx PRODUCT DATASHEET Microsemi Analog Mixed Signal Group 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 1 Copyright © 1997 Rev. 1.5, 2010-07-13 TM ® Positive Fixed Voltage Regulator DESCRIPTION The SG78xxA/SG78xx series of positive regulators offer self contained, fixed-voltage capability with up to 1.5A of load current and input voltage up to 50V (SG78xxA series only). These units feature a unique on-chip trimming system to set the output voltages to within ±1.5% of nominal on the SG78xxA series, ±2.0% on the SG78xx series. The SG78xxA versions also offer much improved line and load regulation characteristics. Utilizing an improved bandgap reference design, problems have been eliminated that are normally associated with the Zener diode references, such as drift in output voltage and large changes in the line and load regulation. All protective features of thermal shutdown, current limiting, and safe-area control have been designed into these units and since these regulators require only a small output capacitor for satisfactory performance, ease of application is assured. Although designed as fixed-voltage regulators, the output voltage can be increased through the use of a simple voltage divider. The low quiescent drain current of the device insures good regulation when this method is used. Product is available in hermetically sealed TO-257 (both case grounded ‘G’ and isolated ‘IG’), TO-3, TO-39 and LCC packages. IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com KEY FEA T URES Output Voltage Set Internally to ±1.5% on SG78xxA Input Voltage Range to 50V max. on SG78xxA Two Volt Input-Output Differential Excellent Line and Load Regulation Foldback Current Limiting Thermal Overload Protection Voltages Available: 5V, 12V, 15V Contact Factory for Other Voltage Options Available in Surface Mount Package HIGH RELIABILITY FEATURES - SG78xxA/78xx Available to MIL-STD – 883, ¶ 1.2.1 MIL-M38510/10702BXA - JAN7805T MIL-M38510/10703BXA - JAN7812T MIL-M38510/10704BXA - JAN7815T MIL-M38510/10706BYA - JAN7805K MIL-M38510/10707BYA - JAN7812K MIL-M38510/10708BYA - JAN7815K Radiation Data Available MSC-AMSG level "S" Processing Available Available to DSCC – Standard Microcircuit Drawing (SMD) PRODUCT HIGHLIG HT SCHEMATIC DIAGRAM * * For normal operation the (V OS) sense pin must be externally connected to the load. |
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