WL2803K WILLSEMI | Alldatasheet
Document overview
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Technical content
Features
Input voltage : 2.5V~5.5V Output voltage : 1.8V, 3.3V (Or upon request) Output current : 800mA PSRR : 65dB @ 1KHz Dropout voltage : 260mV @ IOUT=0.8A Output noise : 100uV Quiescent current : 150μA Typ.
Applications
LCD TV STB Computer, Graphic card Network communication equipments Others portable electronics devices Http://www.sh-willsemi.com SOT-89-5L PinConfiguration (TopView) 2803K = Device code ** = Voltage code (33: 3.3V) YY = Year code WW = Week code Marking OrderInformation For detail information, Please refer to page 8.
WillSemiconductorLtd. 2 Mar.2015–Rev1.5 TypicalApplication When the output is less than 2V, it is recommended that the Cout is more than 10uF. BlockDiagram PinDescription PIN Symbol Description
1 VIN Input
2 GND Ground
3 EN Enable, Active High
4 NC Not Connect
5 VOUT Output
WillSemiconductorLtd. 3 Mar.2015–Rev1.5 AbsoluteMaximumRatings Note: These are stress ratings only. Stresses exceeding the range specified under “Absolute Maximum Ratings” may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. *1: Surface mounted on FR-4 Board using 1 square inch pad size, dual side, 1oz copper *2: Surface mounted on FR-4 board using minimum pad size, 1oz copper *3:Power dissipation is calculate by PD = (VIN-VOUT) x IOUT RecommendOperatingRatings Parameter Symbol Value Unit Input voltage range VIN -0.3～6.5 V Output voltage range VOUT -0.3～VIN V Power dissipation *1 *3 PD 1.0 W Power dissipation *2 *3 0.5 W Thermal resistance *1 RθJA 125 oC/W Thermal resistance *2 250 oC/W Junction temperature TJ 150 oC Lead temperature(10s) TL 260 oC Storage temperature Tstg -55 ~ 150 oC ESD Ratings HBM ±8000 V MM ±400 V Parameter Symbol Value Unit Operating Supply voltage VIN 2.5～5.5 V Operating Temperature Range Topr -40～85 oC
WillSemiconductorLtd. 4 Mar.2015–Rev1.5 ElectronicsCharacteristics(Ta=25oC,VIN=VOUT+1V,CIN=COUT=4.7uF,unlessotherwisenoted) Parameter Symbol Condition Min. Typ. Max. Unit Output Voltage VOUT VOUT <1.5V, VIN=2.5V, IOUT=1mA VOUT 30mV VOUT VOUT 30mV V VOUT≧1.5V, IOUT=1mA VOUT 0.98 VOUT VOUT 1.02 Dropout Voltage VDROP VOUT=VOUT*0.98, IOUT=1A 250 450 mV Current Limit ILIM VIN=5V 1.2 A Line Regulation △VLINE VOUT=3.3V, VIN=4.3~6.0V, IOUT=1mA 5 10 mV Load Regulation △VLoad VOUT=3.3V , IOUT=1~800mA 10 30 mV Quiescent Current IQ VOUT=3.3V, IOUT=0 150 200 uA Power Supply Ripple Rejection PSRR VIN=(VOUT+1V)DC+0.2VP-P F=1KHz ,IOUT=10mA dB VIN=(VOUT+1V)DC+0.2VP-P F=10KHz, IOUT=10mA Output noise voltage eNO 10Hz to 100KHz, COUT=4.7μF 100 µVP-P EN logic high voltage VENH VIN=5.5V, IOUT=1mA 1.2 V EN logic low voltage VENL VIN=5.5V, IOUT=0mA 0.4 V Thermal shutdown threshold TSD 165 oC Thermal shutdown hysteresis △ TSD 30 oC
WillSemiconductorLtd. 5 Mar.2015–Rev1.5 Typicalcharacteristics(Ta=25oC,VIN=VOUT+1V,CIN=COUT=4.7uF,unless otherwisenoted) Quiescentcurrentvs.Supplyvoltage Outputvoltagevs.Supplyvoltage Outputvoltagevs.Outputcurrent Quiescentcurrent vs.Ambienttemperature Outputvoltagevs.Ambient temperature Outputvoltagevs.Outputcurrent 100 110 120 130 140 150 160 170 180 190 200 VOUT =3.3V IOUT =0mA Quiescent Current: IQ (uA) Input Voltage: VIN (V) -50 -25 0 25 50 75 100 125 150 100 150 200 250 300 VOUT =3.3V IOUT =0mA Quiescent Current: IQ (uA) Ambient Temperature: TA ( o -50 -25 0 25 50 75 100 125 150 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 Output Voltage: VOUT (V) IOUT=1mA Ambient Temperature: TA ( o 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 IOUT=800mA Output Voltage: VOUT (V) Input Voltage: VIN (V) 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 VIN=3.8V VIN=4.2VVIN=5.5V Output Voltage: VOUT (V) Output Current: IOUT (A) TA= -40 o C 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 VIN=3.8V VIN=4.2VVIN=5.5V Output Voltage: VOUT (V) Output Current: IOUT (A) TA= 25 o C
WillSemiconductorLtd. 6 Mar.2015–Rev1.5 Outputvoltagevs.Outputcurrent PSRR Dropoutvoltagevs.Outputcurrent PSRR 10 100 1000 10000 100 VIN = 4.3V+0.2VP-P VOUT = 3.3V IOUT = 10mA Power Supply Ripple Rejection: PSRR (dB) Ripple Frequency (HZ) 10 100 1000 10000 100 Power Supply Ripple Rejection: PSRR (dB) Ripple Frequency (HZ) VIN = 2.8V+0.2VP-P VOUT = 1.8V IO = 10mA 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 VIN=3.8V VIN=4.2VVIN=5.5V Output Voltage: VOUT (V) Output Current: IOUT (A) TA=85 o C 0 200 400 600 800 1000 100 150 200 250 300 VOUT =3.3V TA = 85 O C TA = 25 O C TA = -40 O C Dropout Voltage: VDROP(mV) Output Current: IOUT (mA)
WillSemiconductorLtd. 7 Mar.2015–Rev1.5 StartupwithEN LineRegulation ShutdownwithEN LoadRegulatio
WillSemiconductorLtd. 8 Mar.2015–Rev1.5 ORDERINFORMATION OrderingNo. VOUT(V) Package Operating Temperature Shipping WL2803K18-5/TR 1.8 SOT-89-5L -40 ~ +85°C 1000/Tape and Reel WL2803K33-5/TR 3.3 SOT-89-5L -40 ~ +85°C 1000/Tape and Reel RECOMMENDEDLANDPATTERN(unit:mm)
WillSemiconductorLtd. PACKAGEOUTLINEDIMENSIONS SOT-89-5L Symbol DimensionsinMillimeters Min. Typ. Max. A 1.40 1.50 1.60 b 0.32 0.42 0.52 b1 0.38 0.48 0.58 c 0.35 - 0.44 D 4.40 4.50 4.60 D1 1.55 Ref. E 2.30 2.45 2.60 E1 3.94 - 4.25 e 1.50 Typ. e1 3.00 Typ. L 0.90 1.05 1.20
WillSemiconductorLtd. TAPEANDREELINFORMATION ReelDimensions TapeDimensions QuadrantAssignmentsForPIN1OrientationInTape RD Reel Dimension W Overall width of the carrier tape 1 P1 Pitch between successive cavity centers Pin1 Pin1 Quadrant User Direction of Feed Reel Dimensions RD W Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 7inch 13inch 2mm 4mm 8mm 8mm 12mm 16mm