WL2855K33-3/TR

WL2855K WL2855K Low noise, Low Power Consumption, 12V Input, 500mA, CMOS LDO Http://www.sh-willsemi.com Descriptions The WL2855K series are high accuracy, low noise, 12V Input, 500mA, CMOS Linear regulator with high ripple rejection. The devices offer a new level of cost effective performance in cellular phones, laptop and SOT-89-3L notebook computers, and other portable devices. The WL2855K has the fold-back maximum output current which depends on the output voltage. So the current limit functions both as a short circuit protection and as an output current limiter. The WL2855K regulators are available in standard SOT-89-3L Package. Standard products are Pb-free and Halogen-free. Pin Configuration (Top View) Features  Input Voltage Range : 2.5V~12V  Output Voltage Range :1.2V~5V  Output Current :500mA  Fixed Voltage Accuracy :±1%(Vo≥2.5V)  Quiescent current :1uA  Dropout voltage : 840mV@Vo=4V 2855 : Device code Io=500mA  Recommend capacitor  Short-Circuit Protection ** : Voltage code : ≥0.1uF Y : Year Code W : Week Code Applications  Mobile Phone  Cellphones, radiophone, digital cameras  Bluetooth, wireless handsets  Others portable electronics device For detail marking information, please see page 12. Marking Order Information For detail order information, please see page 12. Will Semiconductor Ltd. 1 Oct, 2019 – Rev 1.2 WL2855K Typical Application Pin Description SOT-89-3L PIN Symbol Description 1 GND Ground 2 VIN Input 3 VOUT Output Recommend capacitor :≥0.1uF Block Diagram Will Semiconductor Ltd. 2 Oct, 2019 – Rev 1.2 WL2855K Absolute Maximum Ratings Parameter Value Power Dissipation, PD@TA=25℃ 1.5 W VIN Range -0.3~13.5 V VOUT Range -0.3~5.5 V IOUT Internally Limited Lead Temperature Range 260 o Storage Temperature Range -55~150 o Operating Junction Temperature Range 150 o MSL Level-3 ESD Ratings Unit mA C C C HBM 4000 V MM 200 V Recommend Operating Ratings Parameter Value Unit Operating Supply voltage 2.5~12 V Operating Temperature Range -40~85 Thermal Resistance, RθJA (SOT-89-3L) 77 Will Semiconductor Ltd. 3 C o C/W o Oct, 2019 – Rev 1.2 WL2855K Electronics Characteristics (Ta=25oC, VIN=VOUT+1V, CIN=COUT=1μF, IOUT=1mA，unless otherwise noted) Parameter Symbol Condition VOUT≤2.5V Output Voltage VOUT Input Voltage VIN Current Limit ILIM Dropout Voltage VDROP Line Regulation △VLINE Load Regulation Min. Typ. Max. Unit -25 VOUT +25 mV 0.99* VOUT>2.5V Vout VOUT 2.5 VIN≥3.3V 1.01* V Vout 12 500 V mA VOUT=3.3V, IOUT=500mA 940 1200 mV VOUT=4V, IOUT=500mA 840 1100 mV VIN=VOUT+1~12V 1 5 mV △VLoad IOUT=1~500mA 30 50 mV Quiescent Current IQ VIN=4V, IOUT=0 1 2.2 μA Short Current ISHORT VOUT short to GND Power Supply Rejection Rate Output Noise Voltage Will Semiconductor Ltd. PSRR eNO Vo=3.3V, Io=10mA Vo=3.3V, Io=30mA 4 180 mA f=100Hz 70 dB f=1kHz 50 dB f=10kHz 25 dB 54 μVRMS Oct, 2019 – Rev 1.2 WL2855K Typical characteristics (Ta=25oC, VIN=VOUT+1V, IOUT=1mA，CIN=COUT=1μF, unless otherwise noted) VOUT=3.3V VOUT=4.0V VOUT=3.3V Will Semiconductor Ltd. 5 Oct, 2019 – Rev 1.2 WL2855K VOUT=4.0V Vdropout VOUT=3.3V Will Semiconductor Ltd. VOUT=4.0V 6 Oct, 2019 – Rev 1.2 WL2855K VOUT=3.3V Will Semiconductor Ltd. VOUT=4.0V 7 Oct, 2019 – Rev 1.2 WL2855K 1.Start up & Shut down VOUT=3.3V VIN=4.3V,COUT=1μF,IOUT=1mA VIN=4.3V,COUT=1μF,IOUT=500mA VOUT=4V VIN=5V,COUT=1μF,IOUT=1mA VIN=5V,COUT=1μF,IOUT=500mA Will Semiconductor Ltd. 8 Oct, 2019 – Rev 1.2 WL2855K 2.Load & Line Transient VIN=4.3V,VOUT=3.3V,COUT=1μF,IOUT=1mA-40mA VIN=4.3V,VOUT=3.3V,COUT=1μF,IOUT=50mA-100mA VIN=5V,VOUT=4V,COUT=1μF,IOUT=1mA-40mA VIN=5V,VOUT=4V,COUT=1μF,IOUT=50mA-100mA VIN=4.3-5.3V,VOUT=3.3V,IOUT=10mA Will Semiconductor Ltd. VIN=5-6V,VOUT=4V,IOUT=10mA 9 Oct, 2019 – Rev 1.2 WL2855K PACKAGE OUTLINE DIMENSIONS SOT-89-3L D A E1 E D1 L b1 e c b e1 SIDE VIEW TOP VIEW SIDE VIEW Symbol Dimensions in Millimeters Min. Typ. Max. A 1.40 1.50 1.60 b 0.32 0.42 0.52 b1 0.40 0.49 0.58 c 0.30 0.40 0.50 D 4.40 4.50 4.60 D1 1.60 Ref E 2.30 2.45 2.60 E1 3.75 4.00 4.25 e 1.50 BSC e1 3.00 BSC L 1.05 Ref Will Semiconductor Ltd. 10 Oct, 2019 – Rev 1.2 TAPE AND REEL INFORMATION Reel Dimensions RD Reel Dimensions Tape Dimensions W P1 Quadrant Assignments For PIN1 Orientation In Tape Q1 Q2 Q1 Q2 Q3 Q4 Q3 Q4 RD Reel Dimension W Overall width of the carrier tape P1 Pitch between successive cavity centers Pin1 Pin1 Quadrant Will Semiconductor Ltd. User Direction of Feed 7inch 13inch 1 8mm 12mm 16mm 2mm 4mm 8mm Q1 Q2 Q3 11 Q4 Oct, 2019 – Rev 1.2 ORDER INFORMATION Ordering No. Vout (V) Package Operating Temperature Marking WL2855K18-3/TR 1.8 SOT-89-3L -40~85℃ BJYW WL2855K28-3/TR 2.8 SOT-89-3L -40~85℃ CJYW WL2855K30-3/TR 3.0 SOT-89-3L -40~85℃ DAYW WL2855K33-3/TR 3.3 SOT-89-3L -40~85℃ DDYW WL2855K37-3/TR 3.7 SOT-89-3L -40~85℃ DHYW WL2855K38-3/TR 3.8 SOT-89-3L -40~85℃ DJYW WL2855K40-3/TR 4.0 SOT-89-3L -40~85℃ EAYW WL2855K50-3/TR 5.0 SOT-89-3L -40~85℃ FAYW Will Semiconductor Ltd. 12 Shipping Tape and Reel, 1000 Tape and Reel, 1000 Tape and Reel, 1000 Tape and Reel, 1000 Tape and Reel, 1000 Tape and Reel, 1000 Tape and Reel, 1000 Tape and Reel, 1000 Oct, 2019 – Rev 1.2