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 Products > Analog - Regulators > Linear Regulators - Low Dropout Voltage > Positive Voltage - Fixed > LP2989

LP2989  Product Folder

Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator
  

See Also:		   
LP2989LV - FOR OUTPUT VOLTAGES <= 2.3V
Generic P/N 2989
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 Yes 
InputMin Voltage (Volt) 2.81, 3.11, 3.61, 5.31, 2.10 
InputMax Voltage (Volt) 16 
Output Current (mA) 500 
Dropout Voltage (Volt) .31 
Quiescent Current (mA) .11 
SecondaryOutput Voltage (Volt) - 
SecondaryOutput Current (Amp) - 
RegType LDO 
Output Voltage (Volt) 2.50, 2.80, 3.30, 3.60, 4, 5, 1.80 
Watchdog No 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LP2989 Micropower Low Noise, 500 mA Ultra Low-Dropout RegulatorFor Use with Ceramic Output Capacitors 616 Kbytes 1-Jul-02 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
LP2989AILD-2.5LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$1.05reel
of
1000		NS
UZXYTT
L01FA
16 weeks0
LP2989AILD-2.8LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.05reel
of
1000		NS
UZXYTT
L000A
16 weeks0
LP2989AILD-285LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.05reel
of
1000		NS
UZXYTT
L01TA
16 weeks0
LP2989AILD-3.0LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.05reel
of
1000		NS
UZXYTT
L01HA
16 weeks0
LP2989AILD-3.3LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.05reel
of
1000		NS
UZXYTT
L01JA
16 weeks0
LP2989AILD-3.6LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$1.05reel
of
1000		NS
UZXYTT
L019A
16 weeks0
LP2989AILD-4.0LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.05reel
of
1000		NS
UZXYTT
L01LA
16 weeks0
LP2989AILD-5.0LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.05reel
of
1000		NS
UZXYTT
L01KA
16 weeks0
LP2989ILD-2.5LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.99reel
of
1000		NS
UZXYTT
L01FA
B
16 weeks0
LP2989ILD-2.8LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.99reel
of
1000		NS
UZXYTT
L000A
B
16 weeks0
LP2989ILD-285LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.99reel
of
1000		NS
UZXYTT
L01TA
B
16 weeks0
LP2989ILD-3.0LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.99reel
of
1000		NS
UZXYTT
L01HA
B
16 weeks0
LP2989ILD-3.3LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.99reel
of
1000		NS
UZXYTT
L01JA
B
16 weeks0
LP2989ILD-3.6LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.99reel
of
1000		NS
UZXYTT
L019A
B
16 weeks0
LP2989ILD-4.0LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.99reel
of
1000		NS
UZXYTT
L01LA
B
16 weeks0
LP2989ILD-5.0LLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.99reel
of
1000		NS
UZXYTT
L01KA
B
16 weeks0
LP2989AILDX-2.5LLP8StatusFull productionN/AN/A 1K+$1.05reel
of
4500		NS
UZXYTT
L01FA
16 weeks0
LP2989AILDX-2.8LLP8StatusFull productionN/AN/A 1K+$1.05reel
of
4500		NS
UZXYTT
L000A
16 weeks0
LP2989AILDX-285LLP8StatusFull productionN/AN/A 
Buy Now		1K+$1.05reel
of
4500		NS
UZXYTT
L01TA
16 weeks0
LP2989AILDX-3.0LLP8StatusFull productionN/AN/A 1K+$1.05reel
of
4500		NS
UZXYTT
L01HA
16 weeks0
LP2989AILDX-3.3LLP8StatusFull productionN/AN/A 1K+$1.05reel
of
4500		NS
UZXYTT
L01JA
16 weeks0
LP2989AILDX-3.6LLP8StatusFull productionN/AN/A 1K+$1.05reel
of
4500		NS
UZXYTT
L019A
16 weeks0
LP2989AILDX-4.0LLP8StatusFull productionN/AN/A 1K+$1.05reel
of
4500		NS
UZXYTT
L01LA
16 weeks0
LP2989AILDX-5.0LLP8StatusFull productionN/AN/A 1K+$1.05reel
of
4500		NS
UZXYTT
L01KA
16 weeks0
LP2989ILDX-2.5LLP8StatusFull productionN/AN/A 
Buy Now		1K+$0.99reel
of
4500		NS
UZXYTT
L01FA
B
16 weeks0
LP2989ILDX-2.8LLP8StatusFull productionN/AN/A 1K+$0.99reel
of
4500		NS
UZXYTT
L000A
B
16 weeks0
LP2989ILDX-285LLP8StatusFull productionN/AN/A 1K+$0.99reel
of
4500		NS
UZXYTT
L01TA
B
16 weeks0
LP2989ILDX-3.0LLP8StatusFull productionN/AN/A 1K+$0.99reel
of
4500		NS
UZXYTT
L01HA
B
16 weeks0
LP2989ILDX-3.3LLP8StatusFull productionN/AN/A 
Buy Now		1K+$0.99reel
of
4500		NS
UZXYTT
L01JA
B
16 weeks0
LP2989ILDX-3.6LLP8StatusFull productionN/AN/A 1K+$0.99reel
of
4500		NS
UZXYTT
L019A
B
16 weeks0
LP2989ILDX-4.0LLP8StatusFull productionN/AN/A 1K+$0.99reel
of
4500		NS
UZXYTT
L01LA
B
16 weeks0
LP2989ILDX-5.0LLP8StatusFull productionN/AN/A 1K+$0.99reel
of
4500		NS
UZXYTT
L01KA
B
16 weeks0
LP2989AIM-2.5SOIC NARROW8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.96rail
of
95		NSXYTT
2989A
IM2.5
16 weeks0
LP2989AIM-3.3SOIC NARROW8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.96rail
of
95		NSXYTT
2989A
IM3.3
16 weeks0
LP2989AIM-5.0SOIC NARROW8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.96rail
of
95		NSXYTT
2989A
IM5.0
16 weeks0
LP2989IM-2.5SOIC NARROW8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.91rail
of
95		NSXYTT
2989
IM2.5
16 weeks0
LP2989IM-3.3SOIC NARROW8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.91rail
of
95		NSXYTT
2989
IM3.3
16 weeks0
LP2989IM-5.0SOIC NARROW8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.91rail
of
95		NSXYTT
2989
IM5.0
16 weeks0
LP2989AIMX-2.5SOIC NARROW8StatusFull productionN/AN/A 
Buy Now 		1K+$0.96reel
of
2500		NSXYTT
2989A
IM2.5
16 weeks0
LP2989AIMX-3.3SOIC NARROW8StatusFull productionN/AN/A 
Buy Now 		1K+$0.96reel
of
2500		NSXYTT
2989A
IM3.3
16 weeks0
LP2989AIMX-5.0SOIC NARROW8StatusFull productionN/AN/A 1K+$0.96reel
of
2500		NSXYTT
2989A
IM5.0
16 weeks0
LP2989IMX-2.5SOIC NARROW8StatusFull productionN/AN/A 
Buy Now 		1K+$0.91reel
of
2500		NSXYTT
2989
IM2.5
16 weeks0
LP2989IMX-3.3SOIC NARROW8StatusFull productionN/AN/A 
Buy Now		1K+$0.91reel
of
2500		NSXYTT
2989
IM3.3
16 weeks0
LP2989IMX-5.0SOIC NARROW8StatusFull productionN/AN/A 1K+$0.91reel
of
2500		NSXYTT
2989
IM5.0
16 weeks0
LP2989AIMM-2.5MINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.05reel
of
1000		ZXTT
LA0A
16 weeks0
LP2989AIMM-2.8MINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.05reel
of
1000		ZXTT
LA6A
16 weeks0
LP2989AIMM-3.0MINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$1.05reel
of
1000		ZXTT
LA1A
16 weeks0
LP2989AIMM-3.3MINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.05reel
of
1000		ZXTT
LA2A
16 weeks0
LP2989AIMM-5.0MINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$1.05reel
of
1000		ZXTT
LA4A
16 weeks0
LP2989IMM-2.5MINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.99reel
of
1000		ZXTT
LA0B
16 weeks0
LP2989IMM-2.8MINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.99reel
of
1000		ZXTT
LA6B
16 weeks0
LP2989IMM-3.0MINI SOIC8StatusFull productionN/AN/ASamples1K+$0.99reel
of
1000		ZXTT
LA1B
16 weeks0
LP2989IMM-3.3MINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.99reel
of
1000		ZXTT
LA2B
16 weeks0
LP2989IMM-5.0MINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.99reel
of
1000		ZXTT
LA4B
16 weeks0
LP2989AIMMX-2.5MINI SOIC8StatusFull productionN/AN/A 1K+$1.05reel
of
3500		ZXTT
LA0A
16 weeks0
LP2989AIMMX-2.8MINI SOIC8StatusFull productionN/AN/A 1K+$1.05reel
of
3500		ZXTT
LA6A
16 weeks0
LP2989AIMMX-3.0MINI SOIC8StatusFull productionN/AN/A 1K+$1.05reel
of
3500		ZXTT
LA1A
16 weeks0
LP2989AIMMX-3.3MINI SOIC8StatusFull productionN/AN/A 1K+$1.05reel
of
3500		ZXTT
LA2A
16 weeks0
LP2989AIMMX-5.0MINI SOIC8StatusFull productionN/AN/A 1K+$1.05reel
of
3500		ZXTT
LA4A
16 weeks0
LP2989IMMX-2.5MINI SOIC8StatusFull productionN/AN/A 1K+$0.99reel
of
3500		ZXTT
LA0B
16 weeks0
LP2989IMMX-2.8MINI SOIC8StatusFull productionN/AN/A 1K+$0.99reel
of
3500		ZXTT
LA6B
16 weeks0
LP2989IMMX-3.0MINI SOIC8StatusFull productionN/AN/A 1K+$0.99reel
of
3500		ZXTT
LA1B
16 weeks0
LP2989IMMX-3.3MINI SOIC8StatusFull productionN/AN/A 1K+$0.99reel
of
3500		ZXTT
LA2B
16 weeks0
LP2989IMMX-5.0MINI SOIC8StatusFull productionN/AN/A 1K+$0.99reel
of
3500		ZXTT
LA4B
16 weeks0
LP2989I-1.8 MDCUnpackaged DieFull productionN/AN/A   tray
of
N/A		-
N/A0
LP2989I-2.5 MDCUnpackaged DieFull productionN/AN/A   tray
of
N/A		-
N/A0
LP2989I-1.8 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0
LP2989I-2.5 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0

General Description

The LP2989 is a fixed-output 500 mA precision LDO regulator designed for use with ceramic output capacitors.

Output noise can be reduced to 18µV (typical) by connecting an external 10 nF capacitor to the bypass pin.

Using an optimized VIP™ (Vertically Integrated PNP) process, the LP2989 delivers superior performance:

Dropout Voltage: Typically 310 mV @ 500 mA load, and 1 mV @ 100 µA load.

Ground Pin Current: Typically 3 mA @ 500 mA load, and 110 µA @ 100 µA load.

Sleep Mode: The LP2989 draws less than 0.8 µA quiescent current when shutdown pin is pulled low.

Error Flag: The built-in error flag goes low when the output drops approximately 5% below nominal.

Precision Output: Guaranteed output voltage accuracy is 0.75% ("A" grade) and 1.25% (standard grade) at room temperature.

For output voltages < 2V, see LP2989LV datasheet.

Features

  • Ultra low dropout voltage
  • Guaranteed 500 mA continuous output current
  • Very low output noise with external capacitor
  • SO-8, Mini SO-8, 8 Lead LLP surface mount packages
  • <0.8 µA quiescent current when shutdown
  • Low ground pin current at all loads
  • 0.75% output voltage accuracy ("A" grade)
  • High peak current capability (800 mA typical)
  • Wide supply voltage range (16V max)
  • Overtemperature/overcurrent protection
  • -40°C to +125°C junction temperature range

Applications

  • Notebook/Desktop PC
  • PDA/Palmtop Computer
  • Wireless Communication Terminals
  • SMPS Post-Regulator

Application Notes

TitleSize in KbytesDate
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-1187: Application Note 1187 Leadless Leadframe Package (LLP) 1463 Kbytes 26-Sep-03 View Online Download Receive via Email
Application Note 1187 Leadless Leadframe Package (LLP) (JAPANESE)
 5326 Kbytes   View Online Download Receive via Email
AN-1201: Application Note 1201 8-Lead LLP Thermal Performance and Design Guidelines 59 Kbytes 17-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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