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LP3987  Product Folder

Micropower micro SMD 150 mA Ultra Low-Dropout CMOS Voltage Regulators with sleep MODE
Generic P/N 3987
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) 3.05, 2.80, 3 
InputMax Voltage (Volt) 6, 6.50 
Output Current (mA) 150 
Dropout Voltage (Volt) .06 
Quiescent Current (mA) .0140, .16 
SecondaryOutput Voltage (Volt) - 
SecondaryOutput Current (Amp) - 
RegType LDO 
Output Voltage (Volt) 2.85, 2.60, 2.80 
Watchdog No 

Datasheet

TitleSize in KbytesDate
View Online
Download
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LP3987 Micropower micro SMD 150 mA Ultra Low-Dropout CMOS Voltage Regulators with sleep MODE 533 Kbytes 25-Feb-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
LP3987IBL-2.85microSMD5StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.32reel
of
250		XV
I 1
4-6 weeks50000
LP3987IBLX-2.85microSMD5StatusFull productionN/AN/A 
Buy Now		1K+$0.32reel
of
3000		XV
I 1
4-6 weeks50000
LP3987ITL-2.5microSMD5StatusFull productionN/AN/ASamples1K+$0.32reel
of
250		XV
I 7
10-11 weeks50000
LP3987ITL-2.6microSMD5StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.32reel
of
250		XV
I 7
3-5 weeks35000
LP3987ITL-2.8microSMD5StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.32reel
of
250		XV
I 7
3-5 weeks35000
LP3987ITL-2.85microSMD5StatusFull productionN/AN/A24 Hour Samples
Buy Now 		1K+$0.32reel
of
250		XV
I 7
5-7 weeks35000
LP3987ITL-3.0microSMD5StatusFull productionN/AN/ASamples
Buy Now		1K+$0.32reel
of
250		XV
I 7
4-6 weeks20000
LP3987ITLX-2.5microSMD5StatusFull productionN/AN/A 1K+$0.32reel
of
3000		XV
I 7
10-11 weeks50000
LP3987ITLX-2.6microSMD5StatusFull productionN/AN/A 
Buy Now		1K+$0.32reel
of
3000		XV
I 7
3-5 weeks35000
LP3987ITLX-2.8microSMD5StatusFull productionN/AN/A 
Buy Now		1K+$0.32reel
of
3000		XV
I 7
4-6 weeks35000
LP3987ITLX-2.85microSMD5StatusFull productionN/AN/A 
Buy Now		1K+$0.32reel
of
3000		XV
I 7
5-7 weeks50000
LP3987ITLX-3.0microSMD5StatusFull productionN/AN/A 1K+$0.32reel
of
3000		XV
I 7
4-6 weeks50000

General Description

The LP3987 is a 150mA fixed output voltage regulator with very low dropout voltage designed specially to meet requirements of battery-powered applications. The additional sleep MODE feature will reduce current consumption during standby operation to prolong the usage of battery.

Dropout Voltage: 100mV maximum dropout with 150mA load.

Shutdown: Less than 1µA quiescent current.

Sleep Mode: Typically 14µA quiescent current during sleep MODE to reduce battery consumption.

Enhanced Stability: The LP3987 is stable with minimum 1µF±20% low ESR ceramic output capacitor as low as 5m and high quality tantalum capacitors.

The LP3987 is available in thin and thick 5 Bump micro SMD package. Performance is specified for -40°C to 125°C.

This device is available with output voltage options of 2.6V, 2.8V, & 2.85V. For other voltage options, please contact National Semiconductor Corporation.

Features

  • Miniature 5-I/O micro SMD package
  • Stable with ceramic and high quality tantalum output capacitors
  • Logic controlled enable
  • Thermal Shutdown and short-circuit current limit

Key Specification

  • 2.7 to 6.0V input range
  • Guaranteed 150 mA output current
  • 1µA quiescent current on shutdown
  • 100 mV maximum dropout with 150 mA load
  • 50dB PSRR at 10KHz
  • Sleep MODE features
  • Over temperature & over current protection
  • -40°C to +125°C junction temperature range for operation

Applications

  • CDMA cellular handsets
  • Wideband CDMA cellular handsets
  • GSM cellular handsets
  • Portable information appliances
  • µP/DSP Power Supplies
  • Digital Cameras
  • SRAM Backup

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LP3987IBL-2.85CMOS721420014108000005226190940
LP3987IBLX-2.85CMOS721420014108000005226190940
LP3987ITL-2.5CMOS721420014108000005226190940
LP3987ITL-2.6CMOS721420014108000005226190940
LP3987ITL-2.8CMOS721420014108000005226190940
LP3987ITL-2.85CMOS721420014108000005226190940
LP3987ITL-3.0CMOS721420014108000005226190940
LP3987ITLX-2.5CMOS721420014108000005226190940
LP3987ITLX-2.6CMOS721420014108000005226190940
LP3987ITLX-2.8CMOS721420014108000005226190940
LP3987ITLX-2.85CMOS721420014108000005226190940
LP3987ITLX-3.0CMOS721420014108000005226190940

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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