National Semiconductor | High-performance Analog

 

 LP3985   
Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator 		Click link to Download

Features

  • Miniature 5-I/O micro SMD and SOT-23-5 package
  • Logic controlled enable
  • Stable with ceramic and high quality tantalum capacitors
  • Fast turn-on
  • Thermal shutdown and short-circuit current limit

    • Description

    The LP3985 is designed for portable and wireless applications with demanding performance and space requirements.

    The LP3985 is stable with a small 1µF ±30% ceramic or high-quality tantalum output capacitor. The micro SMD requires the smallest possible PC board area - the total application circuit area can be less than 2.0mm x 2.5mm, a fraction of a 1206 case size.

    The LP3985's performance is optimized for battery powered systems to deliver ultra low noise, extremely low dropout voltage and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life.

    An optional external bypass capacitor reduces the output noise without slowing down the load transient response. Fast startup time is achieved by utilizing an internal power-on circuit that actively pre-charges the bypass capacitor.

    Power supply rejection is better than 50dB at low frequencies and starts to roll off at 1kHz. 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 150mA, from a 2.5V to 6V input. The LP3985 consumes less than 1.5µA in disable mode and has fast turn-on time less than 200µs.

    The LP3985 is available in a 5-bump thin micro SMD and a 5-pin SOT-23 package. Performance is specified for −40°C to +125°C temperature range and is available in 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V. 3.1V, 3.2V, 3.3V, 4.7V, 4.75V, 4.8V and 5.0V output voltages. For other output voltage options between 2.5V to 5.0V or for a dual LP3985, please contact a Texas Instruments sales office.

    Key Specification

  • 2.5 to 6.0V input range
  • 150mA guaranteed output
  • 50dB PSRR at 1kHz @ VIN = VOUT + 0.2V
  • ≤1.5µA quiescent current when shut down
  • Fast Turn-On time: 200µs (typ.)
  • 100mV maximum dropout with 150mA load
  • 30µVrms output noise (typ.) over 10Hz to 100kHz
  • −40 to +125°C junction temperature range for operation
  • 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.1V, 3.2V, 3.3V, 4.7V, 4.75V, 4.8V and 5.0V outputs standard


    • Applications

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

    • Also Recommended
    LP2983▲0.9V, 1.0V And 1.2V Output Options
    LP3986Dual 150mA Output Version
    LP3987▲LP3985 W/ Sleep Mode
    LP3988▲LP3985 W/ Power Good Flag
    LP3995▲25uV Noise, 60dB PSRR
    LP3996Dual 150mA
    LP5900▲Wide Selection Of Voltage Options, Supports Ceramic Capacitors
    LP3981▲300mA Version



    Typical Application
    click for larger image


    		Block Diagram
    click for larger image



    Typical Performance
    click for larger image


    Parameters / ValuesLP3985 LP2983 LP3987 LP3988 LP3995 LP5900 LP3981
    Output Current150 mA 150 mA 150 mA 150 mA 150 mA 150 mA 300 mA
    Output Min2.6, 4.7, 2.7, 2.5, 3.2, 3.3, 3, 2.8, 2.9, 3.1, 5 Volt 1, 1.2 Volt 2.85, 2.6, 2.8 Volt 2.85, 2.6, 2.5, 3 Volt 1.9, 3, 2.8 Volt 3.3, 2.8, 1.5 Volt 2.83, 3.03, 2.7, 2.5, 3.3, 2.8 Volt
    Input Min Voltage2.5 Volt 2.2 Volt 3.05, 3, 2.8 Volt 2.7, 3.2, 2.8, 3.1 Volt 2.5, 2.9, 3.1 Volt 2.5 Volt 2.7 Volt
    Input Max Voltage6 Volt 16 Volt 6, 6.5 Volt 6 Volt 6 Volt 5.5 Volt 6 Volt
    Dropout Voltage0.06 Volt 1, 1.2 Volt 0.06 Volt 0.08 Volt 0.06 Volt 0.08 Volt 0.132 Volt
    Adjustable OutputNo No No No No No No
    Quiescent Current0.085 mA 0.065 mA 0.085 mA 0.085 mA 0.085 mA 0.025 mA 0.07 mA
    PSRR50 dB 60 dB 75 dB
    Voltage Noise (rms)30 uV 25 uV 6.5 uV
    On/Off PinYes Yes Yes Yes Yes Yes Yes
    PowerGood / Error FlagNo No No Yes No No No
    RegTypeLDO LDO LDO LDO LDO LDO LDO
    Temperature Min-40 deg C -40 deg C -40 deg C -40 deg C -40 deg C -40 deg C -40 deg C
    Temperature Max125 deg C 125 deg C 125 deg C 125 deg C 125 deg C 125 deg C 125 deg C
    Output Voltage2.6, 4.7, 2.7, 2.5, 3.2, 3.3, 3, 2.8, 2.9, 3.1, 5 Volt 1, 1.2 Volt 2.85, 2.6, 2.8 Volt 2.85, 2.6, 2.5, 3 Volt 1.9, 3, 2.8 Volt 3.3, 2.8, 1.5 Volt 2.83, 3.03, 2.7, 2.5, 3.3, 2.8 Volt
    Output Max2.6, 4.7, 2.7, 2.5, 3.2, 3.3, 3, 2.8, 2.9, 3.1, 5 Volt 1, 1.2 Volt 2.85, 2.6, 2.8 Volt 2.85, 2.6, 2.5, 3 Volt 1.9, 3, 2.8 Volt 3.3, 2.8, 1.5 Volt 2.83, 3.03, 2.7, 2.5, 3.3, 2.8 Volt

    Datasheets
    TitleSizeDateOther
    Language
    LP3985 Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator431
    Kbytes    		14-Nov-11日本語  


    Application Notes
    TitleSizeDateOther
    Language
    AN-1219: Application Note 1219 LP3985 MicroSMD-5 Evaluation Board Instruction36
    Kbytes    		10-May-04 
    AN-1223: Application Note 1223 LP3985 SOT23-5 Evaluation Board Instruction29
    Kbytes    		14-May-04 


    Other Technical Documents
    TitleTypeDate
    Understanding Portable Applications Requirements to Improve System PerformancePower Designer 2007-03-22

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LP3985IM5-2.5/NOPB

    LP3985IM5-2.5

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide6150
    AVNET-EMWorldwide1054
    DIGI-KEYWorldwide3942
    MOUSERWorldwide2000
    NEWARKAmericas3996
    RS COMPONENTSWorldwide215
    TAYLORAmericas6150
    		$0.20 each at 1K+ pcsreel
    of
    1000
    LP3985IM5-2.7/NOPB

    LP3985IM5-2.7

    RoHS Status

    SOT-23    		Full production
    Lead Time: 12 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide2000
    AVNET-EMWorldwide14000
    DIGI-KEYWorldwide3108
    MOUSERWorldwide1965
    TAYLORAmericas2000
    		$0.20 each at 1K+ pcsreel
    of
    1000
    LP3985IM5-2.8/NOPB

    LP3985IM5-2.8

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide6000
    DIGI-KEYWorldwide2257
    MOUSERWorldwide1996
    NEWARKAmericas606
    TAYLORAmericas6000
    		$0.20 each at 1K+ pcsreel
    of
    1000
    LP3985IM5-2.9/NOPB


    RoHS Status

    SOT-23    		Full production
    Lead Time: 10 weeks

     
    DistributorRegionQty
    ARROWWorldwide3000
    DIGI-KEYWorldwide0
    MOUSERWorldwide1900
    TAYLORAmericas3000
    		$0.20 each at 1K+ pcsreel
    of
    1000
    LP3985IM5-3.0/NOPB

    LP3985IM5-3.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide3825
    AVNET-EMWorldwide2000
    CEACAsia Pacific12000
    DIGI-KEYWorldwide14222
    MOUSERWorldwide1885
    NEWARKAmericas125
    TAYLORAmericas87965
    		$0.20 each at 1K+ pcsreel
    of
    1000
    LP3985IM5-3.2/NOPB

    LP3985IM5-3.2

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AVNET-EMWorldwide314
    DIGI-KEYWorldwide2722
    MOUSERWorldwide2000
    		$0.20 each at 1K+ pcsreel
    of
    1000
    LP3985IM5-3.3/NOPB

    LP3985IM5-3.3

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    AITGAsia Pacific1001
    ARROWWorldwide2000
    AVNET-EMWorldwide2289
    CEACAsia Pacific3000
    DIGI-KEYWorldwide3837
    MOUSERWorldwide853
    NEWARKAmericas2041
    RS COMPONENTSWorldwide850
    TAYLORAmericas38968
    TECHMOSAAsia Pacific1000
    		$0.20 each at 1K+ pcsreel
    of
    1000
    LP3985IM5-4.7/NOPB

    LP3985IM5-4.7

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide4000
    AVNET-EMWorldwide899
    DIGI-KEYWorldwide1439
    MOUSERWorldwide2000
    TAYLORAmericas4000
    TECHMOSAAsia Pacific1000
    		$0.20 each at 1K+ pcsreel
    of
    1000
    LP3985IM5-5.0/NOPB

    LP3985IM5-5.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide101732
    DIGI-KEYWorldwide4787
    NEWARKAmericas1489
    TAYLORAmericas101732
    		$0.20 each at 1K+ pcsreel
    of
    1000
    LP3985IM5X-2.5/NOPB

    LP3985IM5X-2.5

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide12000
    AVNET-EMWorldwide3000
    DIGI-KEYWorldwide0
    TAYLORAmericas12000
    		$0.20 each at 1K+ pcsreel
    of
    3000
    LP3985IM5X-2.8/NOPB

    LP3985IM5X-2.8

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    TAYLORAmericas2998
    		$0.20 each at 1K+ pcsreel
    of
    3000
    LP3985IM5X-285/NOPB

    LP3985IM5X-285

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.20 each at 1K+ pcsreel
    of
    3000
    LP3985IM5X-3.0/NOPB

    LP3985IM5X-3.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide3000
    		$0.20 each at 1K+ pcsreel
    of
    3000
    LP3985IM5X-3.3/NOPB

    LP3985IM5X-3.3

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AVNET-EMWorldwide5600
    DIGI-KEYWorldwide0
    MOUSERWorldwide2880
    		$0.20 each at 1K+ pcsreel
    of
    3000
    LP3985IM5X-4.7/NOPB

    LP3985IM5X-4.7

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.20 each at 1K+ pcsreel
    of
    3000
    LP3985IM5X-5.0/NOPB

    LP3985IM5X-5.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AVNET-EMWorldwide9000
    DIGI-KEYWorldwide0
    RSL MICROAsia Pacific6000
    TECHMOSAAsia Pacific9000
    		$0.20 each at 1K+ pcsreel
    of
    3000
    LP3985ITL-2.5/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1000
    AVNET-EMWorldwide1750
    DIGI-KEYWorldwide0
    TAYLORAmericas1000
    		$0.21 each at 1K+ pcsreel
    of
    250
    LP3985ITL-2.6/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide3250
    DIGI-KEYWorldwide0
    MOUSERWorldwide1750
    		$0.21 each at 1K+ pcsreel
    of
    250
    LP3985ITL-2.7/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    250
    LP3985ITL-2.8/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide1642
    MOUSERWorldwide1750
    		$0.21 each at 1K+ pcsreel
    of
    250
    LP3985ITL-2.9/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    250
    LP3985ITL-285/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide1250
    DIGI-KEYWorldwide0
    FARNELLEurope and Asia775
    MOUSERWorldwide1750
    		$0.21 each at 1K+ pcsreel
    of
    250
    LP3985ITL-3.0/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 16 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1250
    DIGI-KEYWorldwide2041
    MOUSERWorldwide1750
    TAYLORAmericas1250
    		$0.21 each at 1K+ pcsreel
    of
    250
    LP3985ITL-3.1/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 10 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    250
    LP3985ITL-3.2/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    250
    LP3985ITL-3.3/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 12 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide2500
    AVNET-EMWorldwide2149
    DIGI-KEYWorldwide2389
    TAYLORAmericas2500
    		$0.21 each at 1K+ pcsreel
    of
    250
    LP3985ITL-4.75/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    250
    LP3985ITL-4.8/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide1250
    DIGI-KEYWorldwide0
    MOUSERWorldwide1750
    		$0.21 each at 1K+ pcsreel
    of
    250
    LP3985ITL-5.0/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    250
    LP3985ITLX-2.5/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide2975
    		$0.21 each at 1K+ pcsreel
    of
    3000
    LP3985ITLX-2.6/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    3000
    LP3985ITLX-2.7/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    3000
    LP3985ITLX-2.8/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    3000
    LP3985ITLX-2.9/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    3000
    LP3985ITLX-285/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide18000
    AVNET-EMWorldwide12000
    DIGI-KEYWorldwide0
    MOUSERWorldwide3000
    TAYLORAmericas18000
    		$0.21 each at 1K+ pcsreel
    of
    3000
    LP3985ITLX-3.0/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    3000
    LP3985ITLX-3.1/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    3000
    LP3985ITLX-3.2/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    3000
    LP3985ITLX-3.3/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    3000
    LP3985ITLX-4.75/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    3000
    LP3985ITLX-4.8/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 16 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.21 each at 1K+ pcsreel
    of
    3000
    LP3985ITLX-5.0/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide9000
    AVNET-EMWorldwide3000
    DIGI-KEYWorldwide0
    TAYLORAmericas9000
    		$0.21 each at 1K+ pcsreel
    of
    3000

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LP3985IBL-285
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBL-2.5
    		LP3985ITL-2.5
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-2.6
    		LP3985ITL-2.6
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-2.7
    		LP3985ITL-2.7
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-2.8
    		LP3985ITL-2.8
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-2.9
    		LP3985ITL-2.9
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-3.0
    		LP3985ITL-3.0
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-3.1
    		LP3985ITL-3.1
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-3.2
    		LP3985ITL-3.2
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-3.3
    		LP3985ITL-3.3
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-4.8
    		LP3985ITL-4.8
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-5.0
    		LP3985ITL-5.0
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-285
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBLX-2.5
    		LP3985ITLX-2.5
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-2.6
    		LP3985ITLX-2.6
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-2.7
    		LP3985ITLX-2.7
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-2.8
    		LP3985ITLX-2.8
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-2.9
    		LP3985ITLX-2.9
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-3.0
    		LP3985ITLX-3.0
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-3.1
    		LP3985ITLX-3.1
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-3.2
    		LP3985ITLX-3.2
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-3.3
    		LP3985ITLX-3.3
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-4.8
    		LP3985ITLX-4.8
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-5.0
    		LP3985ITLX-5.0
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBP-285
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBP-2.5
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBP-2.7
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBP-2.8
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBP-2.9
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBP-3.0
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBP-3.2
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBP-3.3
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBP-5.0
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBPX-2.5
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBPX-2.7
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBPX-2.8
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBPX-2.9
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBPX-3.0
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBPX-3.1
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBPX-3.3
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IM5-285
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3985IM5-2.6
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IM5-3.1
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3985IM5X-2.6
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3985IM5X-2.7
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IM5X-2.9
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3985IM5X-3.1
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IM5X-3.2
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009

    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for LP3985.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for LP3985 is located at RoHS Status.

    Part Number(s)
    (NSID)    		Weight
    (milligrams)    		TypePinsMSL RatingPeak ReflowRoHS
    Status    		CAD SymbolsModelsPackage
    Marking
    Format
    LP3985IM5-2.5/NOPB

    LP3985IM5-2.5
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		LCSB
    XTT
    LP3985IM5-2.7/NOPB

    LP3985IM5-2.7
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		LCUB
    XTT
    LP3985IM5-2.8/NOPB

    LP3985IM5-2.8
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		LCJB
    XTT
    LP3985IM5-2.9/NOPB

    		14.696
    		SOT-2351260DetailDownloadN/A
    		LCYB
    XTT
    LP3985IM5-3.0/NOPB

    LP3985IM5-3.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		LCRB
    XTT
    LP3985IM5-3.2/NOPB

    LP3985IM5-3.2
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		LDPB
    XTT
    LP3985IM5-3.3/NOPB

    LP3985IM5-3.3
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		LDQB
    XTT
    LP3985IM5-4.7/NOPB

    LP3985IM5-4.7
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		LDRB
    XTT
    LP3985IM5-5.0/NOPB

    LP3985IM5-5.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		LDSB
    XTT
    LP3985IM5X-2.5/NOPB

    LP3985IM5X-2.5
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		LCSB
    XTT
    LP3985IM5X-2.8/NOPB

    LP3985IM5X-2.8
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		LCJB
    XTT
    LP3985IM5X-285/NOPB

    LP3985IM5X-285
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		LCXB
    XTT
    LP3985IM5X-3.0/NOPB

    LP3985IM5X-3.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		LCRB
    XTT
    LP3985IM5X-3.3/NOPB

    LP3985IM5X-3.3
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		LDQB
    XTT
    LP3985IM5X-4.7/NOPB

    LP3985IM5X-4.7
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		LDRB
    XTT
    LP3985IM5X-5.0/NOPB

    LP3985IM5X-5.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		LDSB
    XTT
    LP3985ITL-2.5/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITL-2.6/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITL-2.7/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITL-2.8/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITL-2.9/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITL-285/NOPB

    		1.789
    1.861
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITL-3.0/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITL-3.1/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITL-3.2/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITL-3.3/NOPB

    		1.789
    1.861
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITL-4.75/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITL-4.8/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITL-5.0/NOPB

    		1.789
    1.861
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITLX-2.5/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITLX-2.6/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITLX-2.7/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITLX-2.8/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITLX-2.9/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITLX-285/NOPB

    		1.789
    1.861
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITLX-3.0/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITLX-3.1/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITLX-3.2/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITLX-3.3/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITLX-4.75/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITLX-4.8/NOPB

    		1.789
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5
    LP3985ITLX-5.0/NOPB

    		1.789
    1.861
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 5

    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for LP3985.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for LP3985 is located at RoHS Status.

    CAD Symbols and Models
    Download LP3985 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LP3985IM5-2.5CMOS70213010015840003449464325
    LP3985IM5-2.7CMOS70213010015840003449464325
    LP3985IM5-2.8CMOS70213010015840003449464325
    LP3985IM5-2.9CMOS70213010015840003449464325
    LP3985IM5-3.0CMOS70213010015840003449464325
    LP3985IM5-3.2CMOS70213010015840003449464325
    LP3985IM5-3.3CMOS70213010015840003449464325
    LP3985IM5-4.7CMOS70213010015840003449464325
    LP3985IM5-5.0CMOS70213010015840003449464325
    LP3985IM5X-2.5CMOS70213010015840003449464325
    LP3985IM5X-2.8CMOS70213010015840003449464325
    LP3985IM5X-285CMOS70213010015840003449464325
    LP3985IM5X-3.0CMOS70213010015840003449464325
    LP3985IM5X-3.3CMOS70213010015840003449464325
    LP3985IM5X-4.7CMOS70213010015840003449464325
    LP3985IM5X-5.0CMOS70213010015840003449464325
    LP3985ITL-2.5CMOS70213010015840003449464325
    LP3985ITL-2.6CMOS70213010015840003449464325
    LP3985ITL-2.7CMOS70213010015840003449464325
    LP3985ITL-2.8CMOS70213010015840003449464325
    LP3985ITL-2.9CMOS70213010015840003449464325
    LP3985ITL-285CMOS70213010015840003449464325
    LP3985ITL-3.0CMOS70213010015840003449464325
    LP3985ITL-3.1CMOS70213010015840003449464325
    LP3985ITL-3.2CMOS70213010015840003449464325
    LP3985ITL-3.3CMOS70213010015840003449464325
    LP3985ITL-4.75CMOS70213010015840003449464325
    LP3985ITL-4.8CMOS70213010015840003449464325
    LP3985ITL-5.0CMOS70213010015840003449464325
    LP3985ITLX-2.5CMOS70213010015840003449464325
    LP3985ITLX-2.6CMOS70213010015840003449464325
    LP3985ITLX-2.7CMOS70213010015840003449464325
    LP3985ITLX-2.8CMOS70213010015840003449464325
    LP3985ITLX-2.9CMOS70213010015840003449464325
    LP3985ITLX-285CMOS70213010015840003449464325
    LP3985ITLX-3.0CMOS70213010015840003449464325
    LP3985ITLX-3.1CMOS70213010015840003449464325
    LP3985ITLX-3.2CMOS70213010015840003449464325
    LP3985ITLX-3.3CMOS70213010015840003449464325
    LP3985ITLX-4.75CMOS70213010015840003449464325
    LP3985ITLX-4.8CMOS70213010015840003449464325
    LP3985ITLX-5.0CMOS70213010015840003449464325

    Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

    For more information on Reliability Metrics, please click here.


    All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for LP3985.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for LP3985 is located at RoHS Status.

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LP3985IBL-285
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBL-2.5
    		LP3985ITL-2.5
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-2.6
    		LP3985ITL-2.6
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-2.7
    		LP3985ITL-2.7
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-2.8
    		LP3985ITL-2.8
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-2.9
    		LP3985ITL-2.9
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-3.0
    		LP3985ITL-3.0
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-3.1
    		LP3985ITL-3.1
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-3.2
    		LP3985ITL-3.2
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-3.3
    		LP3985ITL-3.3
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-4.8
    		LP3985ITL-4.8
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBL-5.0
    		LP3985ITL-5.0
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-285
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBLX-2.5
    		LP3985ITLX-2.5
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-2.6
    		LP3985ITLX-2.6
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-2.7
    		LP3985ITLX-2.7
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-2.8
    		LP3985ITLX-2.8
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-2.9
    		LP3985ITLX-2.9
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-3.0
    		LP3985ITLX-3.0
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-3.1
    		LP3985ITLX-3.1
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-3.2
    		LP3985ITLX-3.2
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-3.3
    		LP3985ITLX-3.3
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-4.8
    		LP3985ITLX-4.8
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBLX-5.0
    		LP3985ITLX-5.0
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBP-285
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBP-2.5
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBP-2.7
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBP-2.8
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBP-2.9
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBP-3.0
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBP-3.2
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBP-3.3
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBP-5.0
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBPX-2.5
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBPX-2.7
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBPX-2.8
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBPX-2.9
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBPX-3.0
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IBPX-3.1
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IBPX-3.3
    		NONE
    		NATIONAL SEMICONDUCTOR
    		24 Jul 2009
    LP3985IM5-285
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3985IM5-2.6
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IM5-3.1
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3985IM5X-2.6
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3985IM5X-2.7
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IM5X-2.9
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3985IM5X-3.1
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3985IM5X-3.2
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009

    [Information as of 9-Feb-2012]
    Copyright © 2011 National Semiconductor Corporation