3A Fast Ultra Low Dropout Linear Regulator

The LP3873 LP3876 series of fast ultra low-dropout linear Regulators operate from a +2.5V to +7.0V input supply. Wide range of preset output voltage options are available. These ultra low dropout linear Regulators respond very quickly to step changes in load, which makes them suitable for low voltage Microprocessor applications. The LP3873 LP3876 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3873 LP3876 to operate under extremely 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 1?A quiescent current when the shutdown pin is pulled low.
Error# Flag: Error# flag goes low when the output voltage drops 10% below nominal value.
SENSE: Sense pin improves regulation at remote loads.
Precision Output Voltage: Multiple output voltage options are available ranging from 1.8V to 5.0V with a guaranteed accuracy of 1.5% at room temperature, and 3.0% over all conditions (varying line, load, and temperature).
By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LP3873ESX-3.3 Texas Instruments 3A Fast Ultra Low Dropout Linear Regulator 5-DDPAK/TO-263 -40 to 125
LP3873ES-2.5 Texas Instruments 3A Fast Ultra Low Dropout Linear Regulator 5-DDPAK/TO-263 -40 to 125
LP3873ES-5.0/NOPB Texas Instruments 3A Fast Ultra Low Dropout Linear Regulator 5-DDPAK/TO-263 -40 to 125
LP3873ES-3.3/NOPB Texas Instruments 3A Fast Ultra Low Dropout Linear Regulator 5-DDPAK/TO-263 -40 to 125
LP3873ES-1.8/NOPB Texas Instruments 3A Fast Ultra Low Dropout Linear Regulator 5-DDPAK/TO-263 -40 to 125
LP3873ES-2.5/NOPB Texas Instruments 3A Fast Ultra Low Dropout Linear Regulator 5-DDPAK/TO-263 -40 to 125
LP3873ESX-1.8/NOPB Texas Instruments 3A Fast Ultra Low Dropout Linear Regulator 5-DDPAK/TO-263 -40 to 125
LP3873ESX-3.3/NOPB Texas Instruments 3A Fast Ultra Low Dropout Linear Regulator 5-DDPAK/TO-263 -40 to 125
LP3873ESX-5.0/NOPB Texas Instruments 3A Fast Ultra Low Dropout Linear Regulator 5-DDPAK/TO-263 -40 to 125
LP3873ES-3.3 Texas Instruments 3A Fast Ultra Low Dropout Linear Regulator 5-DDPAK/TO-263 -40 to 125
LP3873 's PackagesLP3873 's pdf datasheet
LP3873ET-1.8 TO-220
LP3873ET-2.5 TO-220
LP3873ET-3.3 TO-220
LP3873ET-5.0 TO-220
LP3873ES-1.8 TO-263
LP3873ES-2.5 TO-263
LP3873ES-3.3 TO-263
LP3873ES-5.0 TO-263
LP3873ESX-1.8 TO-263
LP3873ESX-2.5 TO-263
LP3873ESX-3.3 TO-263
LP3873ESX-5.0 TO-263




LP3873 Pinout, Pinouts
LP3873 pinout,Pin out
This is one package pinout of LP3873,If you need more pinouts please download LP3873's pdf datasheet.

LP3873 Application circuits
LP3873 circuits
This is one application circuit of LP3873,If you need more circuits,please download LP3873's pdf datasheet.


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