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LP2981  Product Folder

Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD Packages
Generic P/N 2981
General
Description		 Features Datasheet Package
& Models		 Samples
& Pricing		 Application
Notes

Parametric Table Parametric Table
Temperature Min (deg C) -40 
Temperature Max (deg C) 125 
Multiple Output Capability No 
On/Off Pin Yes 
Error Flag No 
InputMin Voltage (Volt) 2.70, 2.10, 2.90, 3, 3.10, 3.80, 4, 4.20, 4.90 
InputMax Voltage (Volt) 16 
Output Current (mA) 100 
Dropout Voltage (Volt) .20 
Quiescent Current (mA) .0650 
SecondaryOutput Voltage (Volt) - 
SecondaryOutput Current (Amp) - 
RegType LDO 
Output Voltage (Volt) 2.50, 3.20, 3.30, 2.70, 2.80, 2.90, 3, 3.10, 3.60, 3.80, 4, 4.70, 5 
Watchdog No 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LP2981 Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD Packages 468 Kbytes 9-Jan-03 View Online Download Receive via Email
LP2981 Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 and micro SMD Packages (JAPANESE)
 636 Kbytes   View Online Download Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part NumberPackageStatusModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
TypePinsMSL/Lead-Free AvailabilityLead
Time		QtySPICEIBISQty$US each
LP2981AB2.5EVALevaluation boardFull productionN/AN/A 
Buy Now		1+$14.001-
N/A0
LP2981AB3.2EVALevaluation boardFull productionN/AN/A 
Buy Now		1+$14.001-
N/A0
LP2981AB3.3EVALevaluation boardFull productionN/AN/A 
Buy Now		1+$14.001-
N/A0
LP2981AIBP-2.5microSMD5StatusFull productionN/AN/ASamples
Buy Now		1K+$0.49reel
of
250		XV
I S
10-12 weeks50000
LP2981AIBP-3.2microSMD5StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.49reel
of
250		XV
I T
10-12 weeks50000
LP2981AIBP-3.3microSMD5StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.49reel
of
250		XV
I 1
10-12 weeks50000
LP2981IBP-2.5microSMD5StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.47reel
of
250		XV
I S
10-12 weeks50000
LP2981IBP-3.2microSMD5StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.47reel
of
250		XV
I T
10-12 weeks50000
LP2981IBP-3.3microSMD5StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.47reel
of
250		XV
I 1
10-12 weeks50000
LP2981AIBPX-2.5microSMD5StatusFull productionN/AN/A 1K+$0.49reel
of
3000		XV
I S
10-12 weeks50000
LP2981AIBPX-3.2microSMD5StatusFull productionN/AN/A 
Buy Now		1K+$0.49reel
of
3000		XV
I T
10-12 weeks50000
LP2981AIBPX-3.3microSMD5StatusFull productionN/AN/A 
Buy Now		1K+$0.49reel
of
3000		XV
I 1
10-12 weeks50000
LP2981IBPX-2.5microSMD5StatusFull productionN/AN/A 1K+$0.47reel
of
3000		XV
I S
10-12 weeks50000
LP2981IBPX-3.2microSMD5StatusFull productionN/AN/A 
Buy Now		1K+$0.47reel
of
3000		XV
I T
10-12 weeks50000
LP2981IBPX-3.3microSMD5StatusFull productionN/AN/A 
Buy Now		1K+$0.47reel
of
3000		XV
I 1
10-12 weeks50000
LP2981AIM5-2.5SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.35reel
of
1000		L0CA
ZXTT
16 weeks0
LP2981AIM5-2.7SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.35reel
of
1000		L0DA
ZXTT
16 weeks0
LP2981AIM5-2.8SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.35reel
of
1000		L77A
ZXTT
16 weeks0
LP2981AIM5-2.9SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.35reel
of
1000		L0VA
ZXTT
16 weeks0
LP2981AIM5-3.0SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.35reel
of
1000		L05A
ZXTT
16 weeks0
LP2981AIM5-3.1SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.35reel
of
1000		L38A
ZXTT
16 weeks0
LP2981AIM5-3.2SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.35reel
of
1000		L35A
ZXTT
16 weeks0
LP2981AIM5-3.3SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.35reel
of
1000		L04A
ZXTT
16 weeks0
LP2981AIM5-3.6SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.35reel
of
1000		L0JA
ZXTT
16 weeks0
LP2981AIM5-3.8SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.35reel
of
1000		L36A
ZXTT
16 weeks0
LP2981AIM5-4.0SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.35reel
of
1000		L0ZA
ZXTT
16 weeks0
LP2981AIM5-4.7SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.35reel
of
1000		L0GA
ZXTT
16 weeks0
LP2981AIM5-5.0SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.35reel
of
1000		L03A
ZXTT
16 weeks0
LP2981IM5-2.5SOT-235StatusFull productionN/AN/ASamples1K+$0.34reel
of
1000		L0CB
ZXTT
16 weeks0
LP2981IM5-2.7SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.34reel
of
1000		L0DB
ZXTT
16 weeks0
LP2981IM5-2.8SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.34reel
of
1000		L77B
ZXTT
16 weeks0
LP2981IM5-2.9SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.34reel
of
1000		L0VB
ZXTT
16 weeks0
LP2981IM5-3.0SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.34reel
of
1000		L05B
ZXTT
16 weeks0
LP2981IM5-3.1SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.34reel
of
1000		L38B
ZXTT
16 weeks0
LP2981IM5-3.2SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.34reel
of
1000		L35B
ZXTT
16 weeks0
LP2981IM5-3.3SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.34reel
of
1000		L04B
ZXTT
16-18 weeks50000
LP2981IM5-3.6SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.34reel
of
1000		L0JB
ZXTT
16 weeks0
LP2981IM5-3.8SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.34reel
of
1000		L36B
ZXTT
16 weeks0
LP2981IM5-4.0SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.34reel
of
1000		L0ZB
ZXTT
16 weeks0
LP2981IM5-4.7SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.34reel
of
1000		L0GB
ZXTT
16 weeks0
LP2981IM5-5.0SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.34reel
of
1000		L03B
ZXTT
16 weeks0
LP2981AIM5X-2.5SOT-235StatusFull productionN/AN/A 1K+$0.35reel
of
3000		L0CA
ZXTT
16 weeks0
LP2981AIM5X-2.7SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.35reel
of
3000		L0DA
ZXTT
16 weeks0
LP2981AIM5X-2.8SOT-235StatusFull productionN/AN/A 1K+$0.35reel
of
3000		L77A
ZXTT
16 weeks0
LP2981AIM5X-2.9SOT-235StatusFull productionN/AN/A 1K+$0.35reel
of
3000		L0VA
ZXTT
16 weeks0
LP2981AIM5X-3.0SOT-235StatusFull productionN/AN/A 
Buy Now 		1K+$0.35reel
of
3000		L05A
ZXTT
16 weeks0
LP2981AIM5X-3.1SOT-235StatusFull productionN/AN/A 1K+$0.35reel
of
3000		L38A
ZXTT
16 weeks0
LP2981AIM5X-3.2SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.35reel
of
3000		L35A
ZXTT
16 weeks0
LP2981AIM5X-3.3SOT-235StatusFull productionN/AN/A 1K+$0.35reel
of
3000		L04A
ZXTT
16 weeks0
LP2981AIM5X-3.6SOT-235StatusFull productionN/AN/A 1K+$0.35reel
of
3000		L0JA
ZXTT
16 weeks0
LP2981AIM5X-3.8SOT-235StatusFull productionN/AN/A 1K+$0.35reel
of
3000		L36A
ZXTT
16 weeks0
LP2981AIM5X-4.0SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.35reel
of
3000		L0ZA
ZXTT
16 weeks0
LP2981AIM5X-4.7SOT-235StatusFull productionN/AN/A 1K+$0.35reel
of
3000		L0GA
ZXTT
16 weeks0
LP2981AIM5X-5.0SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.35reel
of
3000		L03A
ZXTT
16 weeks0
LP2981IM5X-2.5SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.34reel
of
3000		L0CB
ZXTT
16 weeks0
LP2981IM5X-2.7SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.34reel
of
3000		L0DB
ZXTT
16 weeks0
LP2981IM5X-2.8SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.34reel
of
3000		L77B
ZXTT
16 weeks0
LP2981IM5X-2.9SOT-235StatusFull productionN/AN/A 1K+$0.34reel
of
3000		L0VB
ZXTT
16 weeks0
LP2981IM5X-3.0SOT-235StatusFull productionN/AN/A 
Buy Now 		1K+$0.34reel
of
3000		L05B
ZXTT
16 weeks0
LP2981IM5X-3.1SOT-235StatusFull productionN/AN/A 1K+$0.34reel
of
3000		L38B
ZXTT
16 weeks0
LP2981IM5X-3.2SOT-235StatusFull productionN/AN/A 1K+$0.34reel
of
3000		L35B
ZXTT
16 weeks0
LP2981IM5X-3.3SOT-235StatusFull productionN/AN/A 1K+$0.34reel
of
3000		L04B
ZXTT
16 weeks0
LP2981IM5X-3.6SOT-235StatusFull productionN/AN/A 1K+$0.34reel
of
3000		L0JB
ZXTT
16 weeks0
LP2981IM5X-3.8SOT-235StatusFull productionN/AN/A 
Buy Now		1K+$0.34reel
of
3000		L36B
ZXTT
16 weeks0
LP2981IM5X-4.0SOT-235StatusFull productionN/AN/A 1K+$0.34reel
of
3000		L0ZB
ZXTT
16 weeks0
LP2981IM5X-4.7SOT-235StatusFull productionN/AN/A 1K+$0.34reel
of
3000		L0GB
ZXTT
16 weeks0
LP2981IM5X-5.0SOT-235StatusFull productionN/AN/A 
Buy Now 		1K+$0.34reel
of
3000		L03B
ZXTT
16 weeks0
LP2981I-2.5 MDCUnpackaged DieFull productionN/AN/A   tray
of
N/A		-
N/A0
LP2981I-3.0 MDCUnpackaged DieFull productionN/AN/A   tray
of
N/A		-
N/A0
LP2981I-2.5 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0
LP2981I-3.0 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0

General Description

The LP2981 is a 100 mA, fixed-output voltage regulator designed specifically to meet the requirements of battery-powered applications.

Using an optimized VIP™ (Vertically Integrated PNP) process, the LP2981 delivers unequaled performance in all specifications critical to battery-powered designs:

Dropout Voltage. Typically 200 mV @ 100 mA load, and 7 mV @ 1 mA load.

Ground Pin Current. Typically 600 µA @ 100 mA load, and 80 µA @ 1 mA load.

Sleep Mode. Less than 1 µA quiescent current when ON/OFF pin is pulled low.

Smallest Possible Size. SOT-23 and micro SMD packages use an absolute minimum board space.

Precision Output. 0.75% tolerance output voltages available (A grade).

Eleven voltage options, from 2.5V to 5.0V, are available as standard products.

Features

  • Ultra low dropout voltage
  • Output voltage accuracy 0.75% (A Grade)
  • Guaranteed 100 mA output current
  • Smallest possible size (SOT-23, micro SMD package)
  • < 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 (16V max)
  • Fast dynamic response to line and load
  • Low ZOUT over wide frequency range
  • Overtemperature/overcurrent protection
  • -40°C to +125°C junction temperature range

Applications

  • Cellular Phone
  • Palmtop/Laptop Computer
  • Personal Digital Assistant (PDA)
  • Camcorder, Personal Stereo, Camera

Application Notes

TitleSize in KbytesDate
View Online
Download
Receive via Email
AN-1112: Application Note 1112 Micro SMD Wafer Level Chip Scale Package 309 Kbytes 20-Oct-03 View Online Download Receive via Email
Application Note 1112 Micro SMD Wafer Level Chip Scale Package (JAPANESE)
 248 Kbytes   View Online Download Receive via Email
AN-1148: Application Note 1148 Linear Regulators: Theory of Operation and Compensation 200 Kbytes 25-Sep-02 View Online Download Receive via Email
AN-1172: Application Note 1172 LP2980, LP2981, LP2982, LP2985 Micro SMD Demo Boards 206 Kbytes 26-Sep-02 View Online Download Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 15-Jan-2004]

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