LP3852   
1.5A Fast Ultra Low Dropout Linear Regulator 		Click link to Download

Features
•Ultra low dropout voltage
•Stable with selected ceramic capacitors
•Low ground pin current
•Load regulation of 0.06%
•10nA quiescent current in shutdown mode
•Guaranteed output current of 1.5A DC
•Available in TO-263, TO-220 and SOT-223 packages
•Output voltage accuracy ± 1.5%
•Error# flag indicates output status
•Sense option improves load regulation
•Overtemperature/overcurrent protection
•-40°C to +125°C junction temperature range

Description

The LP3852/LP3855 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V input supply. Wide range of preset output voltage options are available. These ultra low dropout linear regulators respond very quickly to step changes in load, which makes them suitable for low voltage microprocessor applications. The LP3852/LP3855 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3852/LP3855 to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 24mV at 150mA load current and 240mV at 1.5A load current.

Ground Pin Current: Typically 4mA at 1.5A load current.

Shutdown Mode: Typically 10nA quiescent current when the shutdown pin is pulled low.

Error# Flag: Error# flag goes low when the output voltage drops 10% below nominal value.

SENSE: Sense pin improves regulation at remote loads.

Precision Output Voltage: Multiple output voltage options are available ranging from 1.8V to 5.0V with a guaranteed accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).

Applications
•Microprocessor power supplies
•GTL, GTL+, BTL, and SSTL bus terminators
•Power supplies for DSPs
•SCSI terminator
•Post regulators
•High efficiency linear regulators
•Battery chargers
•Other battery powered applications
Also Recommended
LP38852▲New! National's LP38k Family Of High
LP38855▲Performance LDOs Power Digital ICs
LP38858▲See More At LDO.NATIONAL.COM



MY BRIEFCASE                                     Remove all from My Briefcase 
Click any "Briefcase" icon to add an item

                                              LP3852
Drag-Select for Table Reset Graph
Also Recommended
LP38852▲New! National's LP38k Family Of High
LP38855▲Performance LDOs Power Digital ICs
LP38858▲See More At LDO.NATIONAL.COM

Typical Application
click for larger image


Block Diagram
click for larger image



Typical Performance
click for larger image


Paramaters / ValuesLP3852 LP38852 LP38855 LP38858
Output Current1500 mA 1500 mA 1500 mA 1500 mA
Output Min1.8, 2.5, 3.3, 5 Volt 0.8 Volt 1.2, 0.8 Volt 1.2, 0.8 Volt
Input Min Voltage2.5 Volt 1.38, 0.98 Volt 1.38, 0.98 Volt
Input Max Voltage7 Volt 5.5 Volt 5.5 Volt 5.5 Volt
Dropout Voltage0.24 Volt 0.130 Volt 0.130 Volt 0.18 Volt
Adjustable OutputNo Yes No No
Quiescent Current3 mA 10 mA 10 mA 10 mA
On/Off PinYes Yes Yes No
Error FlagYes No No No
RegTypeLDO, Linear Regulator 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 Voltage1.8, 2.5, 3.3, 5 Volt 1.2, 0.8 Volt 1.2, 0.8 Volt
Output Max1.8, 2.5, 3.3, 5 Volt 1.8 Volt 1.2, 0.8 Volt 1.2, 0.8 Volt

Datasheet
TitleSizeDateOther
Language
LP3852/LP3855 1.5A Fast Response Ultra Low Dropout Linear Regulators767
Kbytes		15-Sep-06日本語


Featured Application Notes
TitleSizeDateOther
Language
AN-1670: Application Note 1670 LP38513TJ-ADJ Evaluation Board356
Kbytes		23-Jan-09 
AN-1797: Application Note 1797 TO-263 THIN Package2716
Kbytes		10-Mar-08日本語
中文


More Application Notes
TitleSizeDateOther
Language
AN-1676: Application Note 1676 LP38512TS-1.8 Evaluation Board344
Kbytes		5-Nov-07 
AN-1675: Application Note 1675 LP38511TS-1.8 Evaluation Board437
Kbytes		5-Nov-07 

Part Number(s)
(NSID)		Top ViewAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
LP3852EMP-1.8/NOPB

RoHS

Full production
Lead Time: 6 weeks

Samples
DistributorRegionQty
DIGIKEYWorldwide1745
FARNELLEurope and Asia953
$1.88 each at 1K+ pcsreel
of
1000
LP3852EMP-2.5/NOPB
LP3852EMP-2.5

RoHS

Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide1893
NEWARKAmericas515
$1.88 each at 1K+ pcsreel
of
1000
LP3852EMP-3.3/NOPB

RoHS

Full production
Lead Time: 6 weeks

Samples
DistributorRegionQty
AVNET-EMWorldwide1000
DIGIKEYWorldwide2313
FUTUREWorldwide1100
NEWARKAmericas270
RS COMPONENTSWorldwide889
$1.88 each at 1K+ pcsreel
of
1000
LP3852EMP-5.0/NOPB

RoHS

Full production
Lead Time: 6 weeks

Samples
DistributorRegionQty
DIGIKEYWorldwide1353
$1.88 each at 1K+ pcsreel
of
1000
LP3852EMPX-1.8/NOPB

RoHS

Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$1.88 each at 1K+ pcsreel
of
2000
LP3852EMPX-2.5/NOPB

RoHS

Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$1.88 each at 1K+ pcsreel
of
2000
LP3852EMPX-3.3/NOPB

RoHS

Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$1.88 each at 1K+ pcsreel
of
2000
LP3852EMPX-5.0/NOPB

RoHS

Full production
Lead Time: 16 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$1.88 each at 1K+ pcsreel
of
2000
LP3852ET-1.8/NOPB

RoHS



TO-220		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide128
FARNELLEurope and Asia20
$1.88 each at 1K+ pcsrail
of
45
LP3852ET-2.5/NOPB

RoHS



TO-220		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide174
RS COMPONENTSWorldwide31
$1.88 each at 1K+ pcsrail
of
45
LP3852ET-3.3/NOPB

RoHS



TO-220		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide39
FARNELLEurope and Asia25
RS COMPONENTSWorldwide43
$1.88 each at 1K+ pcsrail
of
45
LP3852ET-5.0/NOPB

RoHS



TO-220		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide255
RS COMPONENTSWorldwide36
$1.88 each at 1K+ pcsrail
of
45
LP3852ES-1.8/NOPB

RoHS



TO-263		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
ARROWWorldwide130
DIGIKEYWorldwide482
RS COMPONENTSWorldwide1
$1.88 each at 1K+ pcsrail
of
45
LP3852ES-2.5/NOPB

RoHS



TO-263		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide180
FARNELLEurope and Asia157
FUTUREWorldwide180
$1.88 each at 1K+ pcsrail
of
45
LP3852ES-3.3/NOPB

RoHS



TO-263		Full production
Lead Time: 6 weeks

Samples
DistributorRegionQty
DIGIKEYWorldwide0
RS COMPONENTSWorldwide14
$1.88 each at 1K+ pcsrail
of
45
LP3852ES-5.0/NOPB

RoHS



TO-263		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
AVNET-EMWorldwide180
DIGIKEYWorldwide109
RS COMPONENTSWorldwide13
$1.88 each at 1K+ pcsrail
of
45
LP3852ESX-1.8/NOPB
LP3852ESX-1.8

RoHS



TO-263		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$1.88 each at 1K+ pcsreel
of
500
LP3852ESX-2.5/NOPB

RoHS



TO-263		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
AITGAsia Pacific1000
DIGIKEYWorldwide0
$1.88 each at 1K+ pcsreel
of
500
LP3852ESX-3.3/NOPB

RoHS



TO-263		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
AITGAsia Pacific1000
DIGIKEYWorldwide0
$1.88 each at 1K+ pcsreel
of
500
LP3852ESX-5.0/NOPB

RoHS



TO-263		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$1.88 each at 1K+ pcsreel
of
500

Part Number(s)
(NSID)		Top ViewTypePinsMSL RatingPeak ReflowRoHSCAD SymbolsModelsPackage
Marking
Format
LP3852EMP-1.8/NOPB
SOT-22351260RoHSDownloadN/A
XYTT
LHTB
LP3852EMP-2.5/NOPB
LP3852EMP-2.5
SOT-22351
1		260
260		RoHSDownloadN/A
XYTT
LHUB
LP3852EMP-3.3/NOPB
SOT-22351260RoHSDownloadN/A
XYTT
LHVB
LP3852EMP-5.0/NOPB
SOT-22351260RoHSDownloadN/A
XYTT
LHXB
LP3852EMPX-1.8/NOPB
SOT-22351260RoHSDownloadN/A
XYTT
LHTB
LP3852EMPX-2.5/NOPB
SOT-22351260RoHSDownloadN/A
XYTT
LHUB
LP3852EMPX-3.3/NOPB
SOT-22351260RoHSDownloadN/A
XYTT
LHVB
LP3852EMPX-5.0/NOPB
SOT-22351260RoHSDownloadN/A
XYTT
LHXB
LP3852ET-1.8/NOPB
TO-22051NARoHSDownloadN/A
NSUZXYTTE#
LP3852ET
-1.8
LP3852ET-2.5/NOPB
TO-22051NARoHSDownloadN/A
NSUZXYTTE#
LP3852ET
-2.5
LP3852ET-3.3/NOPB
TO-22051NARoHSDownloadN/A
NSUZXYTTE#
LP3852ET
-3.3
LP3852ET-5.0/NOPB
TO-22051NARoHSDownloadN/A
NSUZXYTTE#
LP3852ET
-5.0
LP3852ES-1.8/NOPB
TO-26353245RoHSDownloadN/A
NSUZXYTTE#
LP3852ES
-1.8
LP3852ES-2.5/NOPB
TO-26353245RoHSDownloadN/A
NSUZXYTTE#
LP3852ES
-2.5
LP3852ES-3.3/NOPB
TO-26353245RoHSDownloadN/A
NSUZXYTTE#
LP3852ES
-3.3
LP3852ES-5.0/NOPB
TO-26353245RoHSDownloadN/A
NSUZXYTTE#
LP3852ES
-5.0
LP3852ESX-1.8/NOPB
LP3852ESX-1.8
TO-26353
3		245
235		RoHSDownloadN/A
NSUZXYTTE#
LP3852ES
-1.8
LP3852ESX-2.5/NOPB
TO-26353245RoHSDownloadN/A
NSUZXYTTE#
LP3852ES
-2.5
LP3852ESX-3.3/NOPB
TO-26353245RoHSDownloadN/A
NSUZXYTTE#
LP3852ES
-3.3
LP3852ESX-5.0/NOPB
TO-26353245RoHSDownloadN/A
NSUZXYTTE#
LP3852ES
-5.0

Reliability Metrics
Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LP3852EMP-1.8CS065238968520440200011249079519
LP3852EMP-2.5CS065238968520440200011249079519
LP3852EMP-3.3CS065238968520440200011249079519
LP3852EMP-5.0CS065238968520440200011249079519
LP3852EMPX-1.8CS065238968520440200011249079519
LP3852EMPX-2.5CS065238968520440200011249079519
LP3852EMPX-3.3CS065238968520440200011249079519
LP3852EMPX-5.0CS065238968520440200011249079519
LP3852ES-1.8CS065238968520440200011249079519
LP3852ES-2.5CS065238968520440200011249079519
LP3852ES-3.3CS065238968520440200011249079519
LP3852ES-5.0CS065238968520440200011249079519
LP3852ESX-1.8CS065238968520440200011249079519
LP3852ESX-2.5CS065238968520440200011249079519
LP3852ESX-3.3CS065238968520440200011249079519
LP3852ESX-5.0CS065238968520440200011249079519
LP3852ET-1.8CS065238968520440200011249079519
LP3852ET-2.5CS065238968520440200011249079519
LP3852ET-3.3CS065238968520440200011249079519
LP3852ET-5.0CS065238968520440200011249079519

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 22-Nov-2009]