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LP38501-ADJ

National Semiconductor
Part Number LP38501-ADJ
Manufacturer National Semiconductor
Description (LP38501-ADJ / LP38503-ADJ) 3A FlexCap Low Dropout Linear Regulator
Published Apr 16, 2012
Detailed Description LP38501/3-ADJ, LP38501A/3A-ADJ 3A FlexCap Low Dropout Linear Regulator for 2.7V to 5.5V Inputs May 19, 2008 LP38501/3-...
Datasheet PDF File LP38501-ADJ PDF File

LP38501-ADJ
LP38501-ADJ

Overview
LP38501/3-ADJ, LP38501A/3A-ADJ 3A FlexCap Low Dropout Linear Regulator for 2.
7V to 5.
5V Inputs May 19, 2008 LP38501/3-ADJ, LP38501A/3A-ADJ 3A FlexCap Low Dropout Linear Regulator for 2.
7V to 5.
5V Inputs General Description National's FlexCap LDO's feature unique compensation that allows the use of any type of output capacitor with no limits on minimum or maximum ESR.
The LP38501/3 series of lowdropout linear regulators operates from a +2.
7V to +5.
5V 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.
Developed on a CMOS process, (utilizing a PMOS pass transistor), the LP38501/3 has low quiescent current that changes little with load current.
Ground Pin Current: Typically 2 mA at 3A load current.
Disable Mode: Typically 25 nA quiescent current when the Enable pin is pulled low.
Simplified Compensation: Stable with any type of output capacitor, regardless of ESR.
Precision Output: "A" grade versions available with 1.
5% VADJ tolerance (25°C) and 3% over line, load and temperature.
Features ■ FlexCap: Stable with ceramic, tantalum, or aluminum ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ capacitors Stable with 10 µF input/output capacitor Adjustable output voltage from 0.
6V to 5V Low ground pin current 25 nA quiescent current in shutdown mode Guaranteed output current of 3A Available in TO-263, TO-263 THIN packages Guaranteed VADJ accuracy of ±1.
5% @ 25°C (A Grade) Guaranteed VADJ accuracy of ±3.
5% @ 25°C (STD) Over-Temperature and Over-Current protection −40°C to +125°C operating TJ range Enable pin (LP38501) Applications ■ ASIC Power Supplies In: Printers, Graphics Cards, DVD Players Set Top Boxes, Copiers, Routers ■ DSP and FPGA Power Supplies ■ SMPS Regulator ■ Conversion from 3.
3V or 5V Rail www.
DataSheet.
co.
kr Typical Application Circuit 30028119 © 2008 National Semiconductor Corporation 300281 www.
national.
com Datasheet pdf - http://www.
DataSheet4U.
net/ LP...


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