SPX1521R-L-3.3 [SIPEX]
Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSSO2, LEAD FREE, TO-252AA, 3 PIN;
| 型号： | SPX1521R-L-3.3 |
| 厂家： | 
SIPEX CORPORATION |
| 描述： | Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSSO2, LEAD FREE, TO-252AA, 3 PIN 输出元件 电源电路 稳压器 调节器 |
| 文件： | 总8页 (文件大小：596K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Solved by
SPX1521
TM
300mA Low Dropout Voltage Regulator
FEATURES
■ ꢀ%ꢁOutputꢁAccuracyꢁ3.3V,ꢁ5V,ꢁꢁ
SPX1521
3 Pin TO-263
atꢁ300mAꢁOutputꢁ
■ VeryꢁLowꢁQuiescentꢁCurrentꢁ
1
2
3
■ 0.3Vꢁ(Typ.)ꢁDropoutꢁVoltageꢁatꢁ300mA
■ ExtremelyꢁTightꢁLoadꢁandꢁLineꢁRegulation
■ Currentꢁ&ꢁThermalꢁLimitingꢁ
VOUT
VIN
GND
■ ReverseꢁBatteryꢁProtection
■ EquivalentꢁReplacementꢁForꢁLTꢀ52ꢀ
Now Available in Lead Free Packaging
DESCRIPTION
TheꢁSPXꢀ52ꢀꢁisꢁaꢁlowꢁpowerꢁvoltageꢁregulator.ꢁThisꢁdeviceꢁisꢁanꢁexcellentꢁchoiceꢁforꢁuseꢁinꢁbattery-
poweredꢁapplicationsꢁsuchꢁasꢁcordlessꢁtelephones,ꢁradioꢁcontrolꢁsystems,ꢁandꢁportableꢁcomputers.ꢁ
TheꢁSPXꢀ52ꢀꢁfeaturesꢁveryꢁlowꢁquiescentꢁcurrentꢁandꢁveryꢁlowꢁdropoutꢁvoltage.ꢁꢁThisꢁincludesꢁaꢁtightꢁ
initial tolerance of ±1% max, and very low output temperature coefficient, making the SPX1521 useful
asꢁaꢁlow-powerꢁvoltageꢁreference.
The SPX1521 is offered in 3 pin TO-252, SOT-223, TO-220 & TO-263 packages.
TYPICAL APPLICATIONS CIRCUIT
IIN
5V
VOUT
OUT
IN
IL
SPX1521
LOAD
+
+
2.2µF
0.1µF
GND
IG
IIN = IL + IG
ꢁ Date:ꢁOct4-06ꢁ
SPXꢀ52ꢀꢁ300mAꢁLowꢁDropoutꢁVoltageꢁRegulatorꢁ
ꢁꢁꢁꢁꢁꢁ©ꢁ2006ꢁSipexꢁCorporation
ꢀ
ABSOLUTE MAXIMUM RATINGS
PowerꢁDissipationꢁ........................................................ InternallyꢁLimitedꢁ
LeadꢁTemp.ꢁ(Soldering,ꢁ5ꢁSeconds).............................................. 260°C
StorageꢁTemperatureꢁRange.........................................-65°Cꢁtoꢁ+ꢀ50°C
ShutdownꢁInputꢁVoltage...................................................-0.6Vꢁtoꢁ+6.5V
ESDꢁRating................................................................................2kV Min
OperatingꢁJunctionꢁTemperatureꢁRangeꢁꢁ......................-40°Cꢁtoꢁ+ꢀ25°C
ꢁꢁꢁꢁꢁꢁInputꢁSupplyꢁVoltage...................................................ꢁ-20Vꢁtoꢁ+20V
ELECTRICAL CHARACTERISTICS
ElectricalꢁcharacteristicsꢁatꢁVINꢁ=ꢁ6V,ꢁIOꢁ=ꢁꢀmA,ꢁCOUTꢁ=ꢁ2.2µF,ꢁꢁTA= 25°C, unless otherwise specified.
Boldfaceꢁappliesꢁoverꢁtheꢁfullꢁoperatingꢁtemperatureꢁrange.
ꢁPARAMETER
CONDITIONS
(Note 2)
TYP
MIN
MAX
UNITS
3.3V Version
ꢁ OutputꢁVoltageꢁ
ꢁ
3.3ꢁ
3.3
ꢀ6ꢁ
3.267ꢁ
3.217
ꢁ
3.333ꢁ
3.382
25ꢁ
Vꢁ
µA
ꢁ
ꢁ ꢁ
ꢀmA ≤ ILꢁ≤ 300mAꢁ
ReverseꢁOutputꢁCurrentꢁ
VOUT=ꢁ3.3V,ꢁVIN=ꢁ0Vꢁ
ꢁ 5.0V Versionꢁ
ꢁ OutputꢁVoltageꢁ
ꢁ
5.0ꢁ
5.0
ꢀ6ꢁ
4.950ꢁ
4.880
ꢁ
5.050ꢁ
5.120
25ꢁ
Vꢁ
ꢁ ꢁ
ꢀmA ≤ ILꢁ≤ 300mAꢁ
ꢁ ReverseꢁOutputꢁCurrentꢁ
VOUT=ꢁ5.0V,ꢁVIN=ꢁ0Vꢁ
µA
All Voltage Options
ꢁ OutputꢁVoltageꢁ
ꢁ
20ꢁ
ꢁ
100ꢁ
ppm/°Cꢁ
Temperature Coefficient
(Note1)
Line Regulation
6V ≤ VINꢁ≤ 20V (Note 4)
1.5
4ꢁ
20
20ꢁ
30
mVꢁ
mVꢁ
ꢁ LoadꢁRegulationꢁ(Noteꢁ3)ꢁ
IL=ꢀꢁtoꢁ300mAꢁ
ꢁ
ꢁ ꢁ
ꢁ
ꢁ
ꢁ
ꢁ DropoutꢁVoltageꢁ(Noteꢁ5)ꢁ
IL=ꢀmAꢁ
0.ꢀ3ꢁ
ꢁ
ꢁ
0.ꢀ7ꢁ
0.25ꢁ
0.55ꢁ
0.70
150ꢁ
500
3ꢁ
Vꢁ
ꢁ ꢁ
ꢁ
ꢁ
ꢁ ꢁ
IL=300mAꢁ
0.30ꢁ
ꢁ
ꢁ
ꢁ ꢁ
ꢁ
ꢁ
GroundꢁCurrentꢁ
IL=ꢀmAꢁ
100ꢁ
350ꢁ
1.5ꢁ
2ꢁ
ꢁ
µAꢁ
ꢁ ꢁ
IL=ꢀ0mAꢁ
ꢁ
ꢁ ꢁ
IL=50mAꢁ
ꢁ
mAꢁ
ꢁ ꢁ
IL=ꢀ00mAꢁ
ꢁ
6ꢁ
ꢁ ꢁ
IL=300mAꢁ
5ꢁ
ꢁ
ꢁ
14
ꢁ CurrentꢁLimitꢁ
VOUT=0ꢁ
330ꢁ
58ꢁ
500
ꢁ
mA
dBꢁ
ꢁ RippleꢁRejectionꢁ
VINꢁ-VOUT=ꢀV(Avg),ꢁꢁ
ꢁVRIPPLE=0.5Vp-p,ꢁ
FRIPPLE=ꢀ20Hz,ꢁILOAD=ꢀ50mA
50ꢁ
ꢁ ꢁ
ꢁ ꢁ
Input Reverse Leakage Current VIN=ꢁ-20V,ꢁVOUT=0Vꢁ
ꢁ
ꢁ
1.0ꢁ
mA
Note 1: Output or reference voltage temperature coefficients defined as the worst case voltage change divided
ꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁbyꢁtheꢁtotalꢁtemperatureꢁrange.
Note 2: Unless otherwise specified all limits are guaranteed for Tꢁ=ꢁ25°C,ꢁVINꢁ=ꢁ6V,ꢁILꢁ=ꢁꢀmAꢁandꢁCLꢁ=ꢁ2.2µF.ꢁꢁ
Note 3:ꢁꢁRegulationꢁisꢁmeasuredꢁatꢁconstantꢁjunctionꢁtemperaturej,ꢁusingꢁpulseꢁtestingꢁwithꢁaꢁlowꢁdutyꢁcycle.ꢁꢁ
ꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁChanges in output voltage due to heating effects are covered under the specification for thermal regulation.
Note 4:ꢁꢁLineꢁregulationꢁforꢁtheꢁSPXꢀ52ꢀꢁisꢁtestedꢁatꢁ25°CꢁforꢁILꢁ=ꢁꢀꢁmA.ꢁForꢁTJꢁ=ꢁꢀ25°C,ꢁlineꢁregulationꢁis
ꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁguaranteedꢁbyꢁdesign.
Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 100 mV
ꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁꢁbelowꢁitsꢁnominalꢁvalueꢁmeasuredꢁatꢁꢀVꢁdifferential.ꢁ
ꢁ Date:ꢁOct4-06ꢁ
SPXꢀ52ꢀꢁ300mAꢁLowꢁDropoutꢁVoltageꢁRegulatorꢁ
ꢁꢁꢁꢁꢁꢁ©ꢁ2006ꢁSipexꢁCorporation
2
APPLICATION INFORMATION
External Capacitors
Theꢁ stabilityꢁ ofꢁ theꢁ SPXꢀ52ꢀꢁ requiresꢁ aꢁ
2.2µFꢁorꢁgreaterꢁcapacitorꢁbetweenꢁoutputꢁ
andꢁground.ꢁOscillationꢁcouldꢁoccurꢁwithoutꢁ
this capacitor. Most types of tantalum or
aluminum electrolytic works fine here. For
operationsꢁofꢁbelowꢁ-25°Cꢁsolidꢁtantalumꢁisꢁ
recommendedꢁ sinceꢁ theꢁ manyꢁ aluminumꢁ
typesꢁhaveꢁelectrolytesꢁthatꢁfreezeꢁatꢁaboutꢁ
-30°C. The ESR of about 5Ω or less and
resonant frequency above 500kHz are the
mostꢁimportantꢁparametersꢁinꢁtheꢁvalueꢁofꢁ
theꢁcapacitor.ꢁꢁTheꢁcapacitorꢁvalueꢁcanꢁbeꢁ
increasedꢁwithoutꢁlimit.
Ifꢁthereꢁisꢁmoreꢁthanꢁꢀ0ꢁinchesꢁofꢁwireꢁbe-
tween the input and the AC filter capacitor,
orꢁifꢁaꢁbatteryꢁisꢁusedꢁasꢁtheꢁinput,ꢁthenꢁaꢁ
0.ꢀµFꢁ tantalumꢁ orꢁ aluminumꢁ electrolyticꢁ
capacitorꢁshouldꢁbeꢁplacedꢁfromꢁtheꢁinputꢁ
toꢁtheꢁground.
Reducing Output Noise
ItꢁmayꢁbeꢁanꢁadvantageꢁtoꢁreduceꢁtheꢁACꢁ
noiseꢁpresentꢁatꢁtheꢁoutput.ꢁOneꢁwayꢁisꢁtoꢁre-
duceꢁtheꢁregulatorꢁbandwidthꢁbyꢁincreasingꢁ
theꢁsizeꢁofꢁtheꢁoutputꢁcapacitor.ꢁꢁIncreasingꢁ
theꢁcapacitorꢁfromꢁꢀµFꢁtoꢁ220µFꢁonlyꢁde-
creasesꢁtheꢁnoiseꢁfromꢁ430µVꢁtoꢁꢀ60µVrmsꢁ
for a 100kHz bandwidth at 5V output.
The SPX1521, unlike other low dropout
regulatorsꢁwillꢁremainꢁstableꢁandꢁinꢁregula-
tionꢁwithꢁnoꢁloadꢁinꢁadditionꢁtoꢁtheꢁinternalꢁ
voltageꢁ divider.ꢁ ꢁThisꢁ featureꢁ isꢁ especiallyꢁ
important in applications like CMOS RAM
keep-alive.
PINOUTS
Note:ꢁTabꢁisꢁconnectedꢁtoꢁGND
TO-252 (R)
TO-263-3 (T)
TO-220-3 (U)
SPX1521
SOT-223 (M3)
3
2
1
VIN
SPX1521
SPX1521
GND
VOUT
1
2
3
1
3
2
1
2
3
VIN GND VOUT
Front View
Top View
VOUT GND VIN
Top View
VOUT
VIN
GND
ThermalꢁResistanceꢁ(ThetaꢁJA)
Front View
SOT-223ꢁ------62.3ºC/W
TO-262ꢁꢁꢁ------3ꢀ.4ºC/W
TO-220ꢁꢁꢁ------29.4ºC/W
TO-252ꢁꢁꢁ------50.0ºC/W
ꢁ Date:ꢁOct4-06ꢁ
SPXꢀ52ꢀꢁ300mAꢁLowꢁDropoutꢁVoltageꢁRegulatorꢁ
ꢁꢁꢁꢁꢁꢁ©ꢁ2006ꢁSipexꢁCorporation
3
PACKAGE: 3 PIN TO-263
ꢁ Date:ꢁOct4-06ꢁ
SPXꢀ52ꢀꢁ300mAꢁLowꢁDropoutꢁVoltageꢁRegulatorꢁ
ꢁꢁꢁꢁꢁꢁ©ꢁ2006ꢁSipexꢁCorporation
4
PACKAGE: 3 PIN TO-220
ꢁ Date:ꢁOct4-06ꢁ
SPXꢀ52ꢀꢁ300mAꢁLowꢁDropoutꢁVoltageꢁRegulatorꢁ
ꢁꢁꢁꢁꢁꢁ©ꢁ2006ꢁSipexꢁCorporation
5
PACKAGE: 3 PIN TO-252
ꢁ Date:ꢁOct4-06ꢁ
SPXꢀ52ꢀꢁ300mAꢁLowꢁDropoutꢁVoltageꢁRegulatorꢁ
ꢁꢁꢁꢁꢁꢁ©ꢁ2006ꢁSipexꢁCorporation
6
PACKAGE: 3 PIN SOT223
ꢁ Date:ꢁOct4-06ꢁ
SPXꢀ52ꢀꢁ300mAꢁLowꢁDropoutꢁVoltageꢁRegulatorꢁ
ꢁꢁꢁꢁꢁꢁ©ꢁ2006ꢁSipexꢁCorporation
7
ORDERING INFORMATION
Package
Output
Voltage
Part Number
Accuracy
SPX1521M3-3-3
SPX1521M3-3-3/TR
SPX1521M3-5-0
SPX1521M3-5-0/TR
SPXꢀ52ꢀR-3-3
ꢀ%
ꢀ%
ꢀ%
ꢀ%
ꢀ%
ꢀ%
ꢀ%
ꢀ%
ꢀ%
ꢀ%
ꢀ%
ꢀ%
ꢀ%
ꢀ%
3.3V
3.3V
5.0V
5.0V
3.3V
3.3V
5.0V
5.0V
3.3V
3.3V
5.0V
5.0V
3.3V
5.0V
3-PinꢁSOT-223
3-PinꢁSOT-223
3-PinꢁSOT-223
3-PinꢁSOT-223
3-PinꢁTO-252
3-PinꢁTO-252
3-PinꢁTO-252
3-PinꢁTO-252
3-PinꢁTO-263
3-PinꢁTO-263
3-PinꢁTO-263
3-PinꢁTO-263
3-PinꢁTO-220
3-PinꢁTO-220
SPXꢀ52ꢀR-3-3/TR
SPXꢀ52ꢀR-5-0
SPXꢀ52ꢀR-5-0/TR
SPXꢀ52ꢀT-3-3
SPXꢀ52ꢀT-3-3/TR
SPXꢀ52ꢀT-5-0
SPXꢀ52ꢀT-5-0/TR
SPXꢀ52ꢀU-3-3
SPXꢀ52ꢀU-5-0
Available in lead free packaging. To order add "-L" suffix to part number.
Example:ꢁSPXꢀ52ꢀT-3-3/TRꢁ=ꢁstandard;ꢁSPXꢀ52ꢀT-L-3-3/TRꢁ=ꢁleadꢁfree
/TRꢁ=ꢁTapeꢁandꢁReel
Pack quantity is 500 for TO-263; 2,000 for TO-252; and 2,500 for SOT-223.
TO-220ꢁisꢁnotꢁavailableꢁinꢁTapeꢁ&ꢁReel.
Sipex Corporation
Solved by
Headquarters and
Sales Office
233ꢁSouthꢁHillviewꢁDrive
Milpitas, CA 95035
TEL:ꢁ(408)ꢁ934-7500
FAX:ꢁ(408)ꢁ935-7600
TM
Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the ap-
plicationꢁorꢁuseꢁofꢁanyꢁproductꢁorꢁcircuitꢁdescribedꢁherein;ꢁneitherꢁdoesꢁitꢁconveyꢁanyꢁlicenseꢁunderꢁitsꢁpatentꢁrightsꢁnorꢁtheꢁrightsꢁofꢁothers.
ꢁ Date:ꢁOct4-06ꢁ
SPXꢀ52ꢀꢁ300mAꢁLowꢁDropoutꢁVoltageꢁRegulatorꢁ
ꢁꢁꢁꢁꢁꢁ©ꢁ2006ꢁSipexꢁCorporation
8
相关型号：
SPX1521R-L-3.3/TR
Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSSO2, LEAD FREE, TO-252AA, 3 PIN
SIPEX
SPX1521R-L-5.0/TR
Fixed Positive LDO Regulator, 5V, 0.7V Dropout, PSSO2, LEAD FREE, TO-252AA, 3 PIN
SIPEX
©2020 ICPDF网 联系我们和版权申明