TLE4275D ,Voltage RegulatorFeatures Output voltage 5 V ± 2% Very low current consumption Power-on and undervoltage reset R ..
TLE4275G ,5-V Low-Drop Voltage RegulatorFeatures Output voltage 5 V ± 2% Very low current consumption Power-on and undervoltage reset R ..
TLE4275QKTTRQ1 ,Automotive 5-V Low-Dropout Voltage Regulator 5-DDPAK/TO-263 -40 to 125Features... 19.3 Feature Description.... 122 Applications..... 19.4 Device Functional Modes.... 123 ..
TLE4275QKVURQ1 ,Automotive 5-V Low-Dropout Voltage Regulator 5-TO-252 -40 to 125FeaturesINfluctuation. Using a resistor of approximately 1Ω in1• Qualified for Automotive Applicati ..
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TLE4275D
Voltage Regulator
5-VLow-DropVoltageRegulatorTLE4275
FeaturesOutputvoltage5V±2%VerylowcurrentconsumptionPower-onandundervoltageresetResetlowdowntoVQ=1VVerylow-dropvoltageShort-circuit-proofReversepolarityproofSuitableforuseinautomotiveelectronicsESDprotection>4kVNewtype
FunctionalDescriptionTheTLE4275isamonolithicintegratedlow-drop
voltageregulatorina5pinTO-package.Aninput
voltageupto45VisregulatedtoVQ,nom=5.0V.TheICabletodriveloadsupto450mAandisshort-circuit
proof.AtovertemperaturetheTLE4275isturnedofftheincorporatedtemperatureprotection.Areset
signalisgeneratedforanoutputvoltageVQ,rtoftyp.
4.65V.Thedelaytimecanbeprogrammedbythe
externaldelaycapacitor.
DimensioningInformationonExternalComponentsTheinputcapacitorCIisnecessaryforcompensationoflineinfluences.Usingaresistorapprox.1ΩinserieswithCI,theoscillatingofinputinductivityandinputcapacitance
canbedamped.TheoutputcapacitorCQisnecessaryforthestabilityoftheregulation
circuit.StabilityisguaranteedatvaluesCQ≥22μFandanESRof≤5Ωwithinthe
operatingtemperaturerange.
CircuitDescriptionThecontrolamplifiercomparesareferencevoltagetoavoltagethatisproportionaltothe
outputvoltageanddrivesthebaseoftheseriestransistorviaabuffer.Saturationcontrolafunctionoftheloadcurrentpreventsanyoversaturationofthepowerelement.Thealsoincorporatesanumberofinternalcircuitsforprotectionagainst:OverloadOver-temperatureReversepolarity
Figure1PinConfiguration(topview)
PinDefinitionsandFunctions
Figure2BlockDiagram
Note:Maximumratingsareabsoluteratings;exceedinganyoneofthesevaluesmay
causeirreversibledamagetotheintegratedcircuit.
AbsoluteMaximumRatings
VoltageRegulator
Input
Output
ResetOutput
ResetDelay
Temperature
OperatingRange
ThermalResistanceWorstcase,regardingpeaktemperature;zeroairflow;mountedonaPCBFR4,80×80×1.5mm3,heatsink
area300mm2
Characteristics=13.5V;–40°C
Output
ResetTimingDandOutputROMeasuredwhentheoutputvoltageVQhasdropped100mVfromthenominalvalueobtainedatVI=13.5V.
Characteristics(cont’d)=13.5V;–40°CFigure3TestCircuit
Figure4ResetTiming
