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LP3876-ADJ Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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LP3876-ADJ Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 14 page  LP3876-ADJ 3A Fast Ultra Low Dropout Linear Regulator General Description The LP3876-ADJ fast ultra low-dropout linear regulators op- erate from a +2.5V to +7.0V input supply. These ultra low dropout linear regulators respond very quickly to step changes in load, which makes them suitable for low voltage microprocessor applications. The LP3876-ADJ is developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3876-ADJ to operate under ex- tremely low dropout conditions. Dropout Voltage: Ultra low dropout voltage; typically 80mV at 300mA load current and 800mV at 3A load current. Ground Pin Current: Typically 6mA at 3A load current. Shutdown Mode: Typically 1µA quiescent current when the shutdown pin is pulled low. Adjustable Output Voltage: The output voltage may be programmed via two external resistors. Features n Ultra low dropout voltage n Low ground pin current n Load regulation of 0.08% n 1µA quiescent current in shutdown mode n Guaranteed output current of 3A DC n Available in TO-263 and TO-220 packages n Minimum output capacitor requirements n Overtemperature/overcurrent protection n −40˚C to +125˚C junction temperature range Applications n Microprocessor power supplies n GTL, GTL+, BTL, and SSTL bus terminators n Power supplies for DSPs n SCSI terminator n Post regulators n High efficiency linear regulators n Battery chargers n Other battery powered applications Typical Application Circuit 20074445 *See Application Hints September 2003 © 2003 National Semiconductor Corporation DS200744 www.national.com |
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