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LP3962ESX-2.5 Datasheet(PDF) 1 Page - Texas Instruments |
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LP3962ESX-2.5 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 36 page LP3962, LP3965 www.ti.com SNVS066H – MAY 2000 – REVISED APRIL 2013 LP3962/LP3965 1.5A Fast Ultra Low Dropout Linear Regulators Check for Samples: LP3962, LP3965 1 FEATURES DESCRIPTION The LP3962/LP3965 series of fast ultra low-dropout 2 • Ultra Low Dropout Voltage linear regulators operate from a +2.5V to +7.0V input • Low Ground Pin Current supply. Wide range of preset output voltage options • Load Regulation of 0.04% are available. These ultra low dropout linear regulators respond very fast to step changes in load • 15µA Quiescent Current in Shutdown Mode which makes them suitable for low voltage • Specified Output Current of 1.5A DC microprocessor applications. The LP3962/LP3965 are • Available in SOT-223,SFM/TO-263 and TO-220 developed on a CMOS process which allows low Packages quiescent current operation independent of output load current. This CMOS process also allows the • Output Voltage Accuracy ± 1.5% LP3962/LP3965 to operate under extremely low • Error Flag Indicates Output Status (LP3962) dropout conditions. • Sense Option Improves Better Load Dropout Voltage: Ultra low dropout voltage; typically Regulation (LP3965) 38mV at 150mA load current and 380mV at 1.5A load • Extremely Low Output Capacitor current. Requirements Ground Pin Current: Typically 5mA at 1.5A load • Overtemperature/Overcurrent Protection current. • −40°C to +125°C Junction Temperature Range Shutdown Mode: Typically 15µA quiescent current when the shutdown pin is pulled low. APPLICATIONS Error Flag: Error flag goes low when the output • Microprocessor Power Supplies voltage drops 10% below nominal value (for LP3962). • GTL, GTL+, BTL, and SSTL Bus Terminators SENSE: Sense pin improves regulation at remote • Power Supplies for DSPs loads. (For LP3965) • SCSI Terminator Precision Output Voltage: Multiple output voltage • Post Regulators options are available ranging from 1.2V to 5.0V and • High Efficiency Linear Regulators adjustable (LP3965), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all • Battery Chargers conditions (varying line, load, and temperature). • Other Battery Powered Applications Typical Application Circuits *SD and ERROR pins must be pulled high through a 10k Ω pull-up resistor. Connect the ERROR pin to ground if this function is not used. See Application Hints section for more information. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2000–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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