TPS7B81.PDF datasheet pdf

Temperature (°C) Quiescent Current ( P A) -50-250255075100125150 1.5 2 2.5 3 3.5 4 4.5 I OUT = 0 PA; V IN = 6 V I OUT = 0 PA; V IN = 40 V I OUT = 200 PA; V IN = 6 V I OUT = 200 PA; V IN = 40 V TPS7B81 EN IN OUT V IN V OUT = 3.3V or 5V C IN C OUT Product Folder Order Now Technical Documents Tools & Software Support & Community An IMPORTANTNOTICEat the end of this datasheetaddressesavailability,warranty,changes,use in safety-criticalapplications, intellectualpropertymattersand otherimportantdisclaimers.PRODUCTIONDATA. TPS7B81 SBVS402–APRIL2020 TPS7B81150-mA,40-V, Ultra-Low-I Q , Low-DropoutRegulator 1 1 Features 1 • Wideinputvoltagerange:3 V to 40 V • Outputcurrent:150 mA • Ultra-lowquiescentcurrent(I Q ): – 2.7 μA typicalat light loads – 4.5 μA maximumat light loads • Accuracy:1.5%overline, load,and temperature • Typicaldropoutvoltage:180 mV at 100 mA • Wideenablevoltagerange:2 V to V IN (40 V max) • Inputvoltagetransienttolerance:45 V • Fixed5-V and 3.3-Voutputoptions • Currentlimit and thermalshutdownprotection • Stablewith a widerangeof capacitors(1 μF to 200 μF) (1) • Junctiontemperaturerange:–40°C to +150°C • Highthermalperformancepackages: – DGN(8-pinHVSSOP),R θJA = 63.9°C/W – DRV(6-pinWSON),R θJA = 72.8°C/W (1) See the outputcapacitorrequirementsin theRecomended OperationConditionstable 2 Applications • Smokeand heatdetectors • Thermostats • Motiondetectors(PIR,uWave,and so forth) • Cordlesspowertools • Appliancebatterypacks • Motordrives 3 Description The TPS7B81is a low-dropout(LDO)linearregulator that operatesfrominputvoltagesup to 40 V and can supplyup to 150 mA in current.Withonly2.7 μA of quiescentcurrentat lightloads,the deviceis an excellentchoicefor wideinputsupplydesignsand high cell countbatteryapplicationsthat needvery low standbypowerconsumption.The45-Vtransient toleranceprovidesadditionalheadroomfor applicationswhereinductivekickbackmaybe present,therebyreducingexternalcircuitryfor voltage suppression. Withintegratedshort-circuitand overcurrentlimiting, theTPS7B81protectsthesystemduringfault conditions.In additionto the low standbypower consumption,the verylow dropoutvoltagein light loadconditionshelpsmaintainregulationevenwhen poweredby depletedbatteries. The TPS7B81is availablein thermallyenhanced,8- pin HVSSOPand6-pinWSONpackages.Both packagesofferhighthermalconductivity,andtheir smallsizesupportscompactdesign,makingthem wellsuitedfor space-limitedapplicationssuchas powertoolsor motordrivemodulesandbattery packs. DeviceInformation (1) PARTNUMBERPACKAGEBODYSIZE(NOM) TPS7B81 HVSSOP(8)3.00mm × 3.00mm WSON(6)2.00mm × 2.00mm (1) For all availablepackages,see the orderableaddendumat the end of the datasheet. TypicalApplicationSchematicQuiescentCurrentvs AmbientTemperature (V OUT = 3.3 V)

Features

• -50-250255075100125150
• 1.5
• 2.5
• 3.5
• 4.5
• • Wideinputvoltagerange:3 V to 40 V
• • Outputcurrent:150 mA
• • Ultra-lowquiescentcurrent(I
• • Accuracy:1.5%overline, load,and temperature
• • Typicaldropoutvoltage:180 mV at 100 mA
• • Wideenablevoltagerange:2 V to V
• • Inputvoltagetransienttolerance:45 V
• • Fixed5-V and 3.3-Voutputoptions
• • Currentlimit and thermalshutdownprotection
• • Stablewith a widerangeof capacitors(1 μF to
• • Junctiontemperaturerange:–40°C to +150°C
• • Highthermalperformancepackages:
• • Smokeand heatdetectors
• • Thermostats
• • Motiondetectors(PIR,uWave,and so forth)
• • Cordlesspowertools
• • Appliancebatterypacks
• • Motordrives