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LX8117-05 Dataheets PDF



Part Number LX8117-05
Manufacturers Microsemi Corporation
Logo Microsemi Corporation
Description 0.8/ 1 & 1.2A LOW DROPOUT POSITIVE REGULATORS
Datasheet LX8117-05 DatasheetLX8117-05 Datasheet (PDF)

LIN D O C #: 8117 LX8117-xx/8117A-xx/8117B-xx 0.8, 1 & 1.2A L O W D R O P O U T P O S I T I V E R E G U L AT O R S T H E I N F I N I T E P O W E R O F I N N O VA T I O N P R O D U C T I O N D A T A S H E E T DESCRIPTION The LX8117/8117A/8117B series are positive Low Dropout (LDO) regulators. At the designed maximum load current, the LX8117 series dropout voltage is guaranteed to be 1.2V or lower at 0.8A (LX8117A 1.3V @ 1A). The dropout voltage decreases with load current. An adjus.

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LIN D O C #: 8117 LX8117-xx/8117A-xx/8117B-xx 0.8, 1 & 1.2A L O W D R O P O U T P O S I T I V E R E G U L AT O R S T H E I N F I N I T E P O W E R O F I N N O VA T I O N P R O D U C T I O N D A T A S H E E T DESCRIPTION The LX8117/8117A/8117B series are positive Low Dropout (LDO) regulators. At the designed maximum load current, the LX8117 series dropout voltage is guaranteed to be 1.2V or lower at 0.8A (LX8117A 1.3V @ 1A). The dropout voltage decreases with load current. An adjustable output voltage version of the LX8117/17A/17B is available, as well as versions with fixed outputs of 2.5V, 2.85V, 3.3V and 5V. The 2.85V version is specifically designed for use as a component of active termination networks for the SCSI bus. On-chip trimming of the internal voltage reference allows specification of the initial output voltage to within ±1% of its nominal value. The output current-limit point is also trimmed, which helps to minimize stress on both the regulator and the system power source when they are operated under short-circuit conditions. The regulator's internal circuitry will operate at input-to-output differential voltages down to 1V. Most regulator circuit designs include output capacitors with values in the range of tens to hundreds of microfarads or more. The LX8117/17A/17B typically requires at least 10µF of output capacitance for stable operation. PNP-type regulators can waste current equal to as much as 10 percent of their output as a quiescent current which flows directly to ground, bypassing the load. Quiescent current from the LX8117/17A/ 17B flows through the load, increasing power-use efficiency and allowing cooler operation. The LX8117 is available in low-profile plastic SOT-223 and D-Pak packages for applications where space is at a premium. The LX8117 is also available in a plastic TO-263 package for instances when the thermal resistance from the circuit die to the environment must be minimized. K E Y F E AT U R E S s 0.2% Line Regulation Maximum s 0.4% Load Regulation Maximum s Output Current Of 800mA s Regulates Down To 1.2V Dropout (LX8117) And 1.3V Dropout (LX8117A) s Operates Down To 1V Dropout s Space Saving SOT-223 Surface Mount Package s Guaranteed Dropout Voltage At Multiple Current Levels s Three-Terminal Adjustable Or Fixed 2.5V, 2.85V, 3.3V & 5V A P P L I C AT I O N S s s s s s Battery Chargers Active SCSI Terminators 5V To 3.3V Linear Regulators High-Efficiency Linear Regulators Post Regulators For Switching Supplies PER A VA I L A B L E O P T I O N S Part # P A RT # Output Voltage Adjustable 2.5V 2.85V 3.3V 5V NOTE: For current data & package dimensions, visit our web site: http://www.linfinity.com. PRODUCT HIGHLIGHT ACTIVE TERMINATOR FOR SCSI-2 BUS 110Ω 110Ω LX8117/8117A/8117B-00 LX8117/8117A/8117B-25 LX8117/8117A/8117B-28 LX8117/8117A/8117B-33 LX8117/8117A/8117B-05 LX8117-28 IN 4.75V to 5.25V GND 10µF 22µF OUT 110Ω 18 to 27 Lines 110Ω PA C K A G E O R D E R I N F O R M AT I O N TA (°C) .


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