LP3872ESX-5.0 National Semiconductor, LP3872ESX-5.0 Datasheet
LP3872ESX-5.0
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LP3872ESX-5.0 Summary of contents
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... Typical Application Circuits *SD and ERROR pins must be pulled high through a 10kΩ pull-up resistor. Connect the ERROR pin to ground if this function is not used. See applications section for more information. © 2003 National Semiconductor Corporation Features n Ultra low dropout voltage n Low ground pin current n Load regulation of 0 ...
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Typical Application Circuits *SD must be pulled high through a 10kΩ pull-up resistor. See applications section for more information. Connection Diagrams Top View TO220-5 Package Bent, Staggered Leads Pin Description for TO220-5 and TO263-5 Packages Pin # Name 1 SD ...
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... Ordering Information Package Type Designator is "T" for TO220 package, and "S" for TO263 package. TABLE 1. Package Marking and Ordering Information Output Voltage Order Number 5.0 LP3872ES-5.0 5.0 LP3872ESX-5.0 3.3 LP3872ES-3.3 3.3 LP3872ESX-3.3 2.5 LP3872ES-2.5 2.5 LP3872ESX-2.5 1.8 LP3872ES-1.8 1.8 LP3872ESX-1.8 5.0 LP3875ES-5.0 5.0 LP3875ESX-5.0 3.3 LP3875ES-3.3 3.3 LP3875ESX-3.3 2.5 LP3875ES-2.5 2.5 LP3875ESX-2.5 1.8 LP3875ES-1.8 1 ...
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Block Diagrams www.national.com LP3872 20063303 LP3875 20063329 4 ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature Range Lead Temperature (Soldering, 5 sec.) ESD Rating (Note 3) Power Dissipation (Note 2) Input Supply Voltage (Survival) Shutdown Input Voltage (Survival) ...
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Electrical Characteristics LP3872/LP3875 (Continued) Limits in standard typeface are for T Unless otherwise specified Symbol Parameter Shutdown Input V Shutdown Threshold SDT T Turn-off delay dOFF T Turn-on delay dON I SD Input Current SD Error ...
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Typical Performance Characteristics Ground Current vs Output Voltage I = 1.5A +1V OUT Errorflag Threshold vs Junction Temperature DC Line Regulation vs Temperature V = 2.5V OUT = 25˚C Shutdown I J 20063354 DC ...
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Application Hints V RESTRICTIONS FOR PROPER START- prevent misoperation, ensure that V before start-up is initiated. This scenario can occur in sys- tems with a backup battery using reverse-biased "blocking" diodes which may allow enough leakage current to ...
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Application Hints (Continued) used at the ground points of the IC and the input and output capacitors. This was caused by varying ground potentials at these nodes resulting from current flowing through the ground plane. Using a single point ground ...
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Application Hints (Continued) SENSE PIN In applications where the regulator output is not very close to the load, LP3875 can provide better remote load regulation using the SENSE pin. Figure 2 depicts the advantage of the SENSE option. LP3872 regulates ...
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Application Hints (Continued) DROPOUT VOLTAGE The dropout voltage of a regulator is defined as the minimum input-to-output differential required to stay within 2% of the nominal output voltage. For CMOS LDOs, the dropout volt- age is the product of the ...
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Physical Dimensions TO220 5-lead, Molded, Stagger Bend Package (TO220-5) For Order Numbers, refer to the “Ordering Information” section of this document. www.national.com inches (millimeters) unless otherwise noted NS Package Number T05D 12 ...
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... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...