LP3875 1.5A Electric Circuit Board IC Fast Ultra Low Dropout Linear Regulators

LP3875-ADJ 1.5A Fast Ultra Low Dropout Linear Regulators

General Description

The LP3875-ADJ fast ultra low-dropout linear regulators operate 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 LP3875-ADJ is developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3875-ADJ to operate under extremely low dropout conditions. Dropout Voltage: Ultra low dropout voltage; typically 38mV at 150mA load current and 380mV at 1.5A load current. Ground Pin Current: Typically 6mA at 1.5A load current. Shutdown Mode: Typically 10nA 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 0.06%

n 10nA quiescent current in shutdown mode

n Guaranteed output current of 1.5A DC

n Available in TO-263, TO-220 and SOT-223 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

Pin Description for TO220-5 and TO263-5 Package

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