lt1585a-3.3 Linear Technology Corporation, lt1585a-3.3 Datasheet
lt1585a-3.3
Related parts for lt1585a-3.3
lt1585a-3.3 Summary of contents
Page 1
... On-chip thermal lim- iting provides protection against any combination of over- load that would create excessive junction temperatures. The LT1585A/LT1585A-3.3 are available in the industry standard 3-pin TO-220 power package. Adjustable , LTC and LT are registered trademarks of Linear Technology Corporation. ...
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... V IN Adjust Pin Current LT1585A Adjust Pin Current LT1585A 1.5V ≤ (V Change (Note 3) Minimum LT1585A 1.5V ≤ (V Load Current Quiescent Current LT1585A-3 RATINGS Storage Temperature Range ................. – 65°C to 150°C Lead Temperature (Soldering, 10 sec).................. 300°C PRECONDITIONI G 100% Thermal Limit Functional Test ...
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... Tant., (V – 3V, OUT IN OUT = 5A = 100µF Tant 6.3V, OUT Note 3: I FULL LOAD as a function of input-to-output voltage. I LT1585A/LT1585A-3.3. The LT1585A has constant current limit with changes in input-to-output voltage. LT1585A Short-Circuit Current vs Temperature 6.0 5.5 5.0 4.5 4.0 –75 –50 – 100 ...
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... LT1585A-3.3 Output Voltage vs Temperature 3.35 3.34 3.33 3.32 3. 3.3V OUT 3.30 3.29 3.28 3.27 3.26 3.25 150 175 –75 –50 – TEMPERATURE (°C) LT1585A • TPC05 LT1585A-3.3 Quiescent Current vs Temperature – 150 175 –75 – TEMPERATURE (°C) LT1585A • TPC08 100 110 120 130 140 150 CASE TEMPERATURE (˚ ...
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... Output voltage tolerances are tighter and include transient re- sponse as part of the specification. The LT1585A/ LT1585A-3.3 are specifically designed to meet the fast current load-step requirements of these microprocessors and save total cost by needing less output capacitance in order to maintain regulation. ...
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... A possible stability problem that occurs in monolithic linear regulators is current limit oscillations. The LT1585A/ LT1585A-3.3 essentially have a flat current limit over the range of input supply voltage. The lower current limit rating and 7V maximum supply voltage rating for these devices permit this characteristic ...
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... INFORMATION A protection diode between the input and output pins is usually not needed. An internal diode between the input and output pins on the LT1585A/LT1585A-3.3 can handle microsecond surge currents of 50A to 100A. Even with large value output capacitors it is difficult to obtain those values of surge currents in normal operation. Only with large values of output capacitance, such as 1000µ ...
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... APPLICATIONS INFORMATION Load Regulation It is not possible to provide true remote load sensing because the LT1585A/LT1585A-3.3 are 3-terminal de- vices. Load regulation is limited by the resistance of the wire connecting the regulators to the load. Load regula- tion per the data sheet specification is measured at the bottom of the package. ...
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... Considerations for Power Semiconduc tors” 1990 Linear Applications Handbook, Volume I , Pages RR3-1 to RR3-20. The output connects to the case of both the LT1585A and the LT1585A-3.3. For example, using an LT1585ACT-3.3 (TO-220, com- mercial) and assuming: V (Max Continuous) = 5.25V (5V + 5%), V ...
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... LT1585A/LT1585A-3.3 U TYPICAL APPLICATIONS 4.75V TO 5.25V 220µF AVX TPS 3 EACH V 50mV/DIV 2A/DIV 10 N Minimum Parts Count LT1585A Adjustable Circuit for the Intel 120MHz Pentium Processor THERMALLOY PLACE IN MICROPROCESSOR 7020B-MT IN OUT + LT1585ACT + C10 110Ω 100µF 10V ADJ 0.1% 10V ...
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... PGND LT1585A/LT1431 Transient Response for 3.8A Load Current Step* OUT OUT 100µs/DIV *TRANSIENT RESPONSE MEASURED WITH AN INTEL POWER VALIDATOR MEASURED AT THE OUT POWER VALIDATOR LT1585A/LT1585A-3.3 PLACE IN MICROPROCESSOR SOCKET CAVITY OUT C8 TO C13 C14 TO C23 + + 100µF 1µF 10V 16V ...
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... LT1585A/LT1585A-3.3 PACKAGE DESCRIPTION .390 – .415 (9.906 – 10.541) .460 – .500 (11.684 – 12.700) .980 – 1.070 (24.892 – 27.178) .520 – .570 (13.208 – 14.478) .100 (2.540) RELATED PARTS PART NUMBER DESCRIPTION LT1129 700mA, Micropower, LDO LT1175 500mA, Micropower Negative, LDO ...