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LP3871 Datasheet(PDF) 1 Page - Texas Instruments |
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LP3871 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 26 page Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LP3871, LP3874 SNVS225H – FEBRUARY 2003 – REVISED JUNE 2015 LP387x 0.8-A Fast Ultra-Low-Dropout Linear Regulators 1 Features 3 Description The LP3871 and LP3874 series of fast ultra-low- 1 • Input Voltage: 2.5 V to 7 V dropout linear regulators operate from a 2.5-V to 7-V • Ultra-Low-Dropout Voltage input supply. Wide range of preset output voltage • Low Ground Pin Current options are available. These ultra-low-dropout linear regulators respond very quickly to step changes in • Load Regulation of 0.04% load, which makes them suitable for low voltage • 10-nA Quiescent Current in Shutdown Mode microprocessor applications. The devices are • Specified Output Current of 0.8-A DC developed on a CMOS process which allows low quiescent current operation independent of output • Output Voltage Accuracy ±1.5% load current. This CMOS process also allows the • ERROR Flag Indicates Output Status LP3871 and LP3874 to operate under extremely low • SENSE Option Improves Load Regulation dropout conditions. • Minimum Output Capacitor Requirements Dropout Voltage: Ultra-low-dropout voltage; typically • Overtemperature/Overcurrent Protection 24 mV at 80-mA load current and 240 mV at 0.8-A • −40°C to +125°C Junction Temperature Range load current. Ground Pin Current: Typically 6 mA at 0.8-A load 2 Applications current. • Microprocessor Power Supplies Shutdown Mode: Typically 10-nA quiescent current • GTL, GTL+, BTL, and SSTL Bus Terminators when the SD pin is pulled low. • Power Supplies for DSPs ERROR Flag: ERROR flag goes low when the output • SCSI Terminator voltage drops 10% below nominal value. • Post Regulators SENSE: SENSE pin improves regulation at remote • High-Efficiency Linear Regulators loads. • Battery Chargers Precision Output Voltage: Multiple output voltage • Other Battery-Powered Applications options are available ranging from 1.8 V to 5 V with a ensured accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature). Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) SOT-223 (5) 6.50 mm x 3.56 mm LP3871 LP3874 DDPAK/ TO-263 (5) 10.16 mm x 8.42 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Applications *SD must be pulled high through a 10-k Ω pullup resistor. See Application and *SD and ERROR pins must be pulled high Implementation for more information. through a 10-k Ω pullup resistor. Connect the ERROR pin to ground if this function is not used. See Application and Implementation for more information. 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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Similar Description - LP3871_15 |
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