LP38692-ADJ   
1A Low Dropout CMOS Linear Regulators with Adjustable Output Stable with Ceramic Output Capacitors from the PowerWise® Family		 Click link to Download

Features
•Output voltage range of 1.25V - 9V
•2.5% adjust pin voltage accuracy (25°C)
•Low dropout voltage: 450mV @ 1A (typ, 5V out)
•Wide input voltage range (2.7V to 10V)
•Precision (trimmed) bandgap reference
•Guaranteed specs for -40°C to +125°C
•1µA off-state quiescent current
•Thermal overload protection
•Foldback current limiting
•SOT-223 and 6-Lead LLP packages
•Enable pin (LP38692-ADJ)

Description

The LP38690/2-ADJ low dropout CMOS linear regulators provide 2.5% precision reference voltage, extremely low dropout voltage (450mV @ 1A load current, VOUT = 5V) and excellent AC performance utilizing ultra low ESR ceramic output capacitors.

The low thermal resistance of the LLP and SOT-223 packages allow the full operating current to be used even in high ambient temperature environments.

The use of a PMOS power transistor means that no DC base drive current is required to bias it allowing ground pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature.

Dropout Voltage: 450 mV (typ) @ 1A (typ. 5V out).

Ground Pin Current: 55 µA (typ) at full load.

Adjust Pin Voltage: 2.5% (25°C) accuracy.

Applications
•Hard Disk Drives
•Notebook Computers
•Battery Powered Devices
•Portable Instrumentation
Also Recommended
LP38501-ADJ▲New! National's LP38k Family Of High
LP38503-ADJ▲Performance LDOs Power Digital ICs
LP38853▲See More At LDO.NATIONAL.COM



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Paramaters / ValuesLP38692-ADJ LP38501-ADJ LP38503-ADJ LP38853
Output Current1000 mA 3000 mA 3000 mA 3000 mA
Output Min1.25 Volt 0.6 Volt 0.6 Volt 0.8 Volt
Input Min Voltage2.7 Volt 2.7 Volt 2.7 Volt
Input Max Voltage10 Volt 5.5 Volt 5.5 Volt 5.5 Volt
Dropout Voltage0.45 Volt 0.42 Volt 0.42 Volt 0.240 Volt
Adjustable OutputYes Yes Yes Yes
Quiescent Current0.055 mA 2 mA 2 mA 10 mA
On/Off PinYes Yes No Yes
Error FlagNo No No No
RegTypeLDO LDO LDO LDO
Temperature Min-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
Output VoltageUndefined Volt
Output Max9 Volt 5 Volt 5 Volt 1.8 Volt
AutomotiveYes
PowerWiseYes Yes

Datasheet
TitleSizeDateOther
Language
LP38690-ADJ/LP38692-ADJ 1A Low Dropout CMOS Linear Regulators with Adjustable Output Stable with Ceramic Output Capacitors380
Kbytes		19-Aug-09 


Featured Application Notes
TitleSizeDateOther
Language
AN-1424: Application Note 1424 LP38692-ADJ Evaluation Board116
Kbytes		9-Nov-07 


More Application Notes
TitleSizeDateOther
Language
AN-1841: Application Note 1841 LMH1982 Evaluation Board User Guide913
Kbytes		21-May-08 中文

Part Number(s)
(NSID)		Top ViewAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
LP38692MP-ADJ/NOPB

RoHS

Full production
Lead Time: 6 weeks

Samples
DistributorRegionQty
ARROWWorldwide1000
AVNET-EMWorldwide1000
DIGIKEYWorldwide5451
FARNELLEurope and Asia4793
KEIKONGAsia Pacific4000
NEWARKAmericas915
RS COMPONENTSWorldwide680
TECHMOSAAsia Pacific5000
$0.55 each at 1K+ pcsreel
of
1000
LP38692MPX-ADJ/NOPB

RoHS

Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$0.55 each at 1K+ pcsreel
of
2000
LP38692SD-ADJ/NOPB

RoHS



LLP		Full production
Lead Time: 8 weeks

Samples
DistributorRegionQty
ARROWWorldwide10000
AVNET-EMWorldwide1000
DIGIKEYWorldwide2342
FUTUREWorldwide1100
NEWARKAmericas801
$0.55 each at 1K+ pcsreel
of
1000
LP38692SDX-ADJ/NOPB

RoHS



LLP		Full production
Lead Time: 8 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$0.55 each at 1K+ pcsreel
of
4500

Part Number(s)
(NSID)		DescriptionAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
LP38692EVAL
1A Low Dropout CMOS Linear Regulators with Adjustable OutputFull production


 
DistributorRegionQty
DIGIKEYWorldwide0
NATIONALWorldwide32
$12.00 each1

LP38692-Adj 1A Low Dropout CMOS Linear Regulators with Adjustable Output

Features:

  • Output voltage range of 1.25V - 9V
  • 2.5% adjustable pin voltage accuracy (25°C)
  • Low dropout voltage: 450mV @ 1A (typ. 5V out)
  • Wide input voltage range (2.7V to 10V)
  • Precision (trimmed) bandgap reference
  • Guaranteed specs for -40°C to +125°C
  • 1mA off-state quiescent current
  • Thermal overload protection
  • Foldback current limiting
  • SOT-223 and 6-Lead LLP packages
  • Enable pin (LP38692-Adj)

Applications:

  • Hard Disk Drives
  • Notebook Computers
  • Battery Powered Devices
  • Portable Instrumentation

Contents:

  • A fully assembled LP38692-Adj evaluation board.
  • LP38692-Adj datasheet
  • LM38692-Adj evaluation board appnote

Part Number(s)
(NSID)		Top ViewTypePinsMSL RatingPeak ReflowRoHSCAD SymbolsModelsPackage
Marking
Format
LP38692MP-ADJ/NOPB
SOT-22351260RoHSN/AN/A
XYTT
LJNB
LP38692MPX-ADJ/NOPB
SOT-22351260RoHSN/AN/A
XYTT
LJNB
LP38692SD-ADJ/NOPB
LLP61260RoHSN/AN/A
ZXYTT
L122B
LP38692SDX-ADJ/NOPB
LLP61260RoHSN/AN/A
ZXYTT
L122B

Reliability Metrics
Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LP38692MP-ADJABCD15003417500423400011201409060
LP38692MPX-ADJABCD15003417500423400011201409060
LP38692SD-ADJABCD15003417500423400011201409060
LP38692SDX-ADJABCD15003417500423400011201409060

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.


[Information as of 21-Nov-2009]