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LP2981-N Datasheet Preview

LP2981-N Datasheet

100-mA Ultra-Low Dropout Regulators

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LP2981-N
SNOS773N – MARCH 2000 – REVISED APRIL 2016
LP2981-N Micropower 100-mA Ultralow Dropout Regulator in SOT-23 Package
1 Features
1 Operating Input Voltage Range: 2.1 V to 16 V
• Ultralow-Dropout Voltage
• Output Voltage Accuracy 0.75% (A Grade)
• Specified 100-mA Output Current
• < 1-μA Quiescent Current when Shutdown
• Low Ground Pin Current at All Load Currents
• High Peak Current Capability (300 mA Typical)
• Wide Supply Voltage Range (16 V Maximum)
• Fast Dynamic Response to Line and Load
• Low ZOUT Over Wide Frequency Range
• Overtemperature and Overcurrent Protection
40°C to 125°C Junction Temperature Range
2 Applications
• Cellular Phones
• Palmtop and Laptop Computers
• Personal Digital Assistants (PDA)
• Camcorders, Personal Stereos, Cameras
3 Description
The LP2981-N is a 100-mA, fixed-output voltage
regulator designed specifically to meet the
requirements of battery-powered applications.
Using an optimized Vertically Integrated PNP (VIP)
process, the LP2981-N delivers unequaled
performance in all specifications critical to battery-
powered designs:
Dropout Voltage: Typically 200 mV at 100-mA load,
and 7 mV at 1-mA load.
Ground Pin Current: Typically 600 μA at 100-mA
load, and 80 μA at 1-mA load.
Sleep Mode: Less than 1-μA quiescent current when
ON/OFF pin is pulled low.
Precision Output: 0.75% tolerance output voltages
available (A grade).
Assorted voltage options, from 2.5 V to 5 V, are
available as standard products.
Device Information(1)
PART NUMBER PACKAGE
BODY SIZE (NOM)
LP2981-N
SOT-23 (5)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application
VIN
CIN
IN
GND
OUT
COUT
VOUT
ON/OFF
ON/OFF
NC
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




etcTI

LP2981-N Datasheet Preview

LP2981-N Datasheet

100-mA Ultra-Low Dropout Regulators

No Preview Available !

LP2981-N
SNOS773N – MARCH 2000 – REVISED APRIL 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics .............................................. 8
7 Detailed Description ............................................ 14
7.1 Overview ................................................................. 14
7.2 Functional Block Diagram ....................................... 14
7.3 Feature Description................................................. 14
7.4 Device Functional Modes........................................ 15
8 Application and Implementation ........................ 16
8.1 Application Information............................................ 16
8.2 Typical Application ................................................. 16
9 Power Supply Recommendations...................... 20
10 Layout................................................................... 20
10.1 Layout Guidelines ................................................. 20
10.2 Layout Example .................................................... 20
11 Device and Documentation Support ................. 21
11.1 Third-Party Products Disclaimer ........................... 21
11.2 Community Resources.......................................... 21
11.3 Trademarks ........................................................... 21
11.4 Electrostatic Discharge Caution ............................ 21
11.5 Glossary ................................................................ 21
12 Mechanical, Packaging, and Orderable
Information ........................................................... 21
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision M (September 2015) to Revision N
Page
• Changed update typical application drawing and change pin names from Vin, Vout to IN and OUT ................................... 1
Changes from Revision L (June 2015) to Revision M
Page
• Changed split out ESD values by specific pins ..................................................................................................................... 4
• Changed correct junction-to-case and junction-to-board values (typo from last format update) .......................................... 5
Changes from Revision K (April 2013) to Revision L
Page
• Changed "Nine" to "Assorted" ................................................................................................................................................ 1
• Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional
Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device
and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .............................. 1
• Changed text of NC pin description ....................................................................................................................................... 3
• Changed thermal value in footnote 3 .................................................................................................................................... 4
• Changed thermal values to TI measure ................................................................................................................................ 5
Changes from Revision J (January 2009) to Revision K
Page
• Changed layout of National Data Sheet to TI format ........................................................................................................... 19
2
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Product Folder Links: LP2981-N
Copyright © 2000–2016, Texas Instruments Incorporated


Part Number LP2981-N
Description 100-mA Ultra-Low Dropout Regulators
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