LT1120A Linear Technology, LT1120A Datasheet
LT1120A
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LT1120A Summary of contents
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... DESCRIPTION The LT1120A is a combination micropower positive regu- lator and free collector comparator on a single monolithic chip. With only 20 A supply current, the LT1120A can supply over 125mA of output current. Input voltage range is from 4.5V to 36V and dropout voltage is 0.6V at 125mA. Dropout voltage decreases with lower load currents. Also included on the chip is a class B output 2 ...
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... LT1 120A ABSOLUTE MAXIMUM Input Voltage ........................................................... 36V NPN Collector Voltage ............................................. 36V Output Short-Circuit Duration .......................... Indefinite Power Dissipation............................... Internally Limited Operating Temperature Range LT1120AC .............................................. 100 C Storage Temperature Range LT1120AC .......................................... – 150 C ELECTRICAL CHARACTERISTICS PARAMETER CONDITIONS Reference Reference Voltage 4.5V V Line Regulation 4 ...
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ELECTRICAL CHARACTERISTICS PARAMETER CONDITIONS Reference Reference Voltage 4.5V V Line Regulation 4.5V V Load Regulation –2.0mA I Output Source Current Output Sink Current Regulator Supply Current ...
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LT1 120A W U TYPICAL PERFORMANCE CHARACTERISTICS Dropout Voltage 100mV OUT 0.1 0.01 0 100 1000 REGULATOR OUTPUT CURRENT (mA) 1120A G04 Supply Current 100mA OUT 10mA 0.1 OUT ...
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... INFORMATION The LT1120A is especially suited for micropower system applications. For example, the comparator section of the LT1120A may be used as a battery checker to provide an indication of low battery. Another type of system applica- tion for the LT1120A would be to generate the equivalent of split supplies off of a single power input. The regulator ...
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... U U APPLICATIONS INFORMATION Reference Internal to the LT1120A is a 2.5V trimmed class B output reference. The reference was designed to be able to source or sink current so it could be used in supply splitting applications as well as a general purpose reference for external circuitry. The design of the reference allows it to source and sink typically 4mA ...
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... V IN INPUT INTERNAL PARASITIC DIODES OF LT1120A V IN Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
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... MIN (0.508) MIN 0.018 ± 0.003 (0.457 ± 0.076) N8 0392 0.150 – 0.157 (3.810 – 3.988 0.004 – 0.010 (0.101 – 0.254) 0.050 (1.270) BSC SO8 0392 LT/GP 0494 10K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1994 ...