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LP2985LV-N Datasheet Preview

LP2985LV-N Datasheet

150-mA Low-noise Low-dropout Regulator

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LP2985LV-N
SNOS510Q – NOVEMBER 1999 – REVISED OCTOBER 2016
LP2985LV-N Micropower 150-mA, Low-Noise, Low-Dropout Regulator in SOT-23 and
DSBGA Packages
1 Features
1 Wide Supply Voltage Range: 2.2 V to 16 V
• Ensured 150-mA Output Current
• Requires Minimum External Components
• Stable With Low-ESR Output Capacitor
• < 1-µA Quiescent Current When Shut Down
• Low Ground Pin Current at all Loads
• Output Voltage Accuracy 1% (A Grade)
• High Peak Current Capability
• Low ZOUT: 0.3-Typical (10 Hz to 1 MHz)
• Overtemperature/Overcurrent Protection
40°C to +125°C Junction Temperature Range
2 Applications
• Cellular Phone
• Palmtop/Laptop Computer
• Personal Digital Assistant (PDA)
• Camcorder, Personal Stereo, Camera
3 Description
The LP2985LV-N is a 150-mA, fixed-output voltage
regulator designed to provide high performance and
low noise in applications requiring output voltages 2
V.
Using an optimized vertically integrated PNP (VIP)
process, the LP2985LV-N delivers unequaled
performance in all specifications critical to battery-
powered designs:
• Ground Pin Current: Typically 825 µA at 150-mA
load, and 75 µA at 1-mA load.
• Enhanced Stability: The LP2985LV-N is stable
with output capacitor equivalent series resistance
(ESR) as low as 5 m, which allows the use of
ceramic capacitors on the output.
• Sleep Mode: Less than 1-µA quiescent current
when ON/OFF pin is pulled low.
• Precision Output: 1% tolerance output voltages
available (A grade).
• Low Noise: By adding a 10-nF bypass capacitor,
output noise can be reduced to 30 µV (typical).
Device Information(1)
PART NUMBER PACKAGE
BODY SIZE (NOM)
LP2985LV-N
SOT-23 (5)
DSBGA (5)
2.90 mm × 1.60 mm
1.164 mm × 0.987 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Space
Typical Application
VIN
CIN
1 µF
IN
OUT
LP2985LV
GND
VOUT
COUT
2.2 µF
ON/OFF
ON/OFF BYPASS
CBYPASS
0.01 µF
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

LP2985LV-N Datasheet Preview

LP2985LV-N Datasheet

150-mA Low-noise Low-dropout Regulator

No Preview Available !

LP2985LV-N
SNOS510Q – NOVEMBER 1999 – REVISED OCTOBER 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 .............................................. 7
7 Detailed Description ............................................ 11
7.1 Overview ................................................................. 11
7.2 Functional Block Diagram ....................................... 11
7.3 Feature Description................................................. 12
7.4 Device Functional Modes........................................ 13
8 Application and Implementation ........................ 14
8.1 Application Information............................................ 14
8.2 Typical Application .................................................. 14
9 Power Supply Recommendations...................... 22
10 Layout................................................................... 22
10.1 Layout Guidelines ................................................. 22
10.2 Layout Example .................................................... 22
10.3 DSBGA Mounting.................................................. 23
10.4 DSBGA Light Sensitivity ....................................... 23
11 Device and Documentation Support ................. 24
11.1 Documentation Support ........................................ 24
11.2 Community Resources.......................................... 24
11.3 Trademarks ........................................................... 24
11.4 Electrostatic Discharge Caution ............................ 24
11.5 Glossary ................................................................ 24
12 Mechanical, Packaging, and Orderable
Information ........................................................... 24
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision P (April 2013) to Revision Q
Page
• Added Device Information and Pin Configuration and Functions sections, ESD Ratings and Thermal Information
tables, Feature Description, Device Functional Modes, Application and Implementation, Power Supply
Recommendations, Layout, Device and Documentation Support, and Mechanical, Packaging, and Orderable
Information sections; change pin names in text and app circuit drawing "VOUT" and "VIN" to "OUT" and "IN" .................. 1
• Deleted lead temperature spec per new TI documentation guidelines ................................................................................. 4
• Changed value of RθJA for the SOT-23 package is 220°C/W ..." to "...value of RθJA for the SOT-23 package is
175.7°C/W..." in footnote 3 to Abs Max table - see update thermal info for SOT-23 in Thermal Information; add RθJA
values to footnote 3 to Abs Max ............................................................................................................................................. 4
• Added Power Dissipation and Estimating Junction Temperature subsections ................................................................... 19
Changes from Revision O (April 2013) to Revision P
Page
• Changed layout of National Semiconductor data sheet to TI format .................................................................................... 1
2
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Product Folder Links: LP2985LV-N
Copyright © 1999–2016, Texas Instruments Incorporated


Part Number LP2985LV-N
Description 150-mA Low-noise Low-dropout Regulator
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