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LP3984  Product Folder

Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package
  

See Also:		   
LP2983 - 0.9V, 1.0V AND 1.2V OUTPUT OPTIONS
     LP3985 - USES CERAMIC OUTPUT CAPACITORS
Generic P/N 3984
General
Description		 Features Datasheet Package
& Models		 Samples
& Pricing		 Reliability
Metrics		 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) 2.50 
InputMax Voltage (Volt) 6 
Output Current (mA) 150 
Dropout Voltage (Volt) .06 
Quiescent Current (mA) .08 
SecondaryOutput Voltage (Volt) - 
SecondaryOutput Current (Amp) - 
RegType LDO 
Output Voltage (Volt) 1.50, 1.80, 2, 3.10 
Watchdog No 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LP3984 Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I O micro SMD Package 323 Kbytes 6-Nov-03 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
LP3984IBP-1.5microSMD4StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.25reel
of
250		X
I
5-7 weeks10000
LP3984IBP-1.8microSMD4StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.25reel
of
250		X
I
4-6 weeks10000
LP3984IBP-2.0microSMD4StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.25reel
of
250		X
I
3-5 weeks10000
LP3984IBP-3.1microSMD4StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.25reel
of
250		X
I
9-10 weeks10000
LP3984IBPX-1.5microSMD4StatusFull productionN/AN/A 
Buy Now		1K+$0.25reel
of
3000		X
I
5-7 weeks10000
LP3984IBPX-1.8microSMD4StatusFull productionN/AN/A 
Buy Now		1K+$0.25reel
of
3000		X
I
4-6 weeks10000
LP3984IBPX-2.0microSMD4StatusFull productionN/AN/A 
Buy Now		1K+$0.25reel
of
3000		X
I
3-5 weeks10000
LP3984IBPX-3.1microSMD4StatusFull productionN/AN/A 1K+$0.25reel
of
3000		X
I
10-11 weeks10000
LP3984IMF-1.5SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.24reel
of
1000		LEAB
ZXTT
16 weeks10000
LP3984IMF-1.8SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.24reel
of
1000		LEBB
ZXTT
16 weeks10000
LP3984IMF-2.0SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now		1K+$0.24reel
of
1000		LECB
ZXTT
16 weeks10000
LP3984IMF-3.1SOT-235StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.24reel
of
1000		LEDB
ZXTT
16 weeks10000
LP3984IMFX-1.5SOT-235StatusFull productionN/AN/A 1K+$0.24reel
of
3000		LEAB
ZXTT
16 weeks10000
LP3984IMFX-1.8SOT-235StatusFull productionN/AN/A 1K+$0.24reel
of
3000		LEBB
ZXTT
16 weeks10000
LP3984IMFX-2.0SOT-235StatusFull productionN/AN/A 1K+$0.24reel
of
3000		LECB
ZXTT
16 weeks10000
LP3984IMFX-3.1SOT-235StatusFull productionN/AN/A 1K+$0.24reel
of
3000		LEDB
ZXTT
16 weeks10000
LP3984ITP-2.9microSMD4StatusFull productionN/AN/ASamples
Buy Now		1K+$0.26reel
of
250		X
I
8-10 weeks5000
LP3984ITPX-2.9microSMD4StatusFull productionN/AN/A 
Buy Now		1K+$0.26reel
of
3000		X
I
8-10 weeks5000
LP3984I-1.5 MDCUnpackaged DieFull productionN/AN/A   tray
of
N/A		-
N/A0
LP3984I-1.8 MDCUnpackaged DieFull productionN/AN/A   tray
of
N/A		-
N/A0
LP3984I-2.0 MDCUnpackaged DieFull productionN/AN/A   tray
of
N/A		-
N/A0
LP3984I-1.5 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0
LP3984I-1.8 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0
LP3984I-2.0 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0

General Description

The LP3984 is designed for portable and wireless applications with demanding performance and space requirements.

The LP3984's performance is optimized for battery powered systems to deliver extremely low dropout voltage and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life.

Power supply rejection is better than 60 dB at low frequencies and starts to roll off at 10 kHz. High power supply rejection is maintained down to low input voltage levels common to battery operated circuits.

The device is ideal for mobile phone and similar battery powered wireless applications. It provides up to 150 mA from a 2.5V to 6V input. The LP3984 consumes less than 1.2µA in disable mode and has fast turn-on time less than 20µs.

The LP3984 is available in a 4 bump micro SMD and 5 pin SOT-23 package. Performance is specified for -40°C to +125°C temperature range and is available in 1.5V, 1.8V, 2.0V, 2.9V and 3.1V output voltages. For other output voltage options from 1.5V to 3.5V, please contact National Semiconductor sales office.

Features

  • Miniature 4-I/O micro SMD and SOT-23-5 package
  • Logic controlled enable
  • Stable with tantalum capacitors
  • 1 µF Tantalum output capacitor
  • Fast turn-on
  • Thermal shutdown and short-circuit current limit

Key Specification

  • 2.5 to 6.0V input range
  • 150mA guaranteed output
  • 60dB PSRR at 1kHz, 40dB at 10kHz @ 3.1VIN
  • <=1.2µA quiescent current when shut down
  • Fast Turn-On time: 20 µs (typ.)
  • 75mV typ dropout with 150mA load
  • -40 to +125°C junction temperature range for operation
  • 1.5V, 1.8V, 2.0V, 2.9V and 3.1V

Applications

  • CDMA cellular handsets
  • Wideband CDMA cellular handsets
  • GSM cellular handsets
  • Portable information appliances

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LP3984I-1.5 MDCCMOS721420014108000005226190940
LP3984I-1.5 MWCCMOS721420014108000005226190940
LP3984I-1.8 MDCCMOS721420014108000005226190940
LP3984I-1.8 MWCCMOS721420014108000005226190940
LP3984I-2.0 MDCCMOS721420014108000005226190940
LP3984I-2.0 MWCCMOS721420014108000005226190940
LP3984IBP-1.5CMOS721420014108000005226190940
LP3984IBP-1.8CMOS721420014108000005226190940
LP3984IBP-2.0CMOS721420014108000005226190940
LP3984IBP-3.1CMOS721420014108000005226190940
LP3984IBPX-1.5CMOS721420014108000005226190940
LP3984IBPX-1.8CMOS721420014108000005226190940
LP3984IBPX-2.0CMOS721420014108000005226190940
LP3984IBPX-3.1CMOS721420014108000005226190940
LP3984IMF-1.5CMOS721420014108000005226190940
LP3984IMF-1.8CMOS721420014108000005226190940
LP3984IMF-2.0CMOS721420014108000005226190940
LP3984IMF-3.1CMOS721420014108000005226190940
LP3984IMFX-1.5CMOS721420014108000005226190940
LP3984IMFX-1.8CMOS721420014108000005226190940
LP3984IMFX-2.0CMOS721420014108000005226190940
LP3984IMFX-3.1CMOS721420014108000005226190940
LP3984ITP-2.9CMOS721420014108000005226190940
LP3984ITPX-2.9CMOS721420014108000005226190940

For more information on Reliablitity Metrics, please click here.


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

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

[Information as of 15-Jan-2004]

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