WL2863E28-5/TR

WL2863E WL2863E Ultra-Low Noise, High PSRR LDO, 250mA Linear http://www.omnivision-group.com Regulator for RF and Analog Circuits Descriptions The WL2863E is a linear regulator capable of supplying 250-mA output current. Designed to meet the requirements of RF and analog circuits, the WL2863E device provides low noise, high PSRR, low quiescent current and very good load /line transients. SOT-23-5L The device is designed to work with a 1μF input and 1μF output ceramic capacitor (no separate noise Operation bypass capacitor is required). The WL2863E regulators are available in standard SOT-23-5L Package. Standard products are Pb-free and Halogen-free. Features  Input Voltage Range :2.2V~5.5V  Output Voltage Range :1.2V~4.3V  Output current :250mA  PSRR :Typ.100dB at 10mA，f =1KHz Pin Configuration (Top View) :Typ. 45dB at 10mA , f =1MHz  Low Dropout :Typ. 115mV at 250mA  Quiescent current :Typ. 21μA  Low Output Voltage Noise:Typ. 7μVRMS  Output Voltage Tolerance :±2%  Shutdown Current :Typ. 0.01μA  UVLO Threshold(V) :Typ. 1.90V  Recommend capacitor :1uF  Stable with 1μF Ceramic Input and Output capacitor  No Noise Bypass Capacitor Required  Thermal-Overload Protection Marking 2863 : Device Code E : Special Code * Applications  Cell phones , radiophone, digital cameras  Bluetooth, wireless handsets  HiFi products  Others portable electronics device Will Semiconductor Ltd. Y : Voltage Code : Year Code W : Week Code Order Information For detail order information, please see page 11 1 Dec, 2021 – Rev 1.1 WL2863E Typical Application VIN VIN VOUT VOUT 1uF 1uF WL2863 ON OFF EN GND Note : The input and output capacitor must be located a distance of not more than 1 cm PIN Functions PIN Symbol 1 VIN 2 GND 3 EN 4 NC 5 VOUT Description Input voltage supply pin , 1μF capacitor should be connected at this input Common ground connection Chip enable: Applying VEN < 0.4 V disables the regulator, Pulling VEN > 1.2 V enables the LDO. No internal electrical connection Regulated output voltage. 1μF capacitor should be connected at this input Block Diagram Will Semiconductor Ltd. 2 Dec, 2021 – Rev 1.1 WL2863E Absolute Maximum Ratings Parameter Value Power Dissipation, PD@TA=25℃ Internally Limited VIN Range -0.3～6.0 V VEN Range −0.3 to VIN + 0.3 V VOUT Range −0.3 to VIN + 0.3 V IOUT 250 Lead Temperature Range 260 Moisture Sensitivity Level Level-3 Storage Temperature Range -55 ~ 150 o Operating Junction Temperature Range 150 o ESD Ratings Unit mW mA C o C C HBM 2000 V MM 200 V Recommend Operating Ratings Parameter Operating Input Voltage Range Value Unit 2.2～5.5 (1) Operating Output Voltage Range 1.2～4.3 Operating Temperature Range -40～85 Thermal Resistance, RθJA 250 V V C o C/W o (1) In order to achieve high performance of PSRR, it is recommended that the VIN needs to be no smaller than (VOUT+0.5V). Will Semiconductor Ltd. 3 Dec, 2021 – Rev 1.1 WL2863E Electronics Characteristics (VIN=VOUT(NOM)+1V, CIN=COUT=1uF, VEN = 1.2 V. Typical values are at Ta = +25°C ,unless otherwise noted) Parameter Symbol Operating Input Voltage VIN Output Voltage Accuracy VOUT Output Current Limit ILIM Dropout Voltage Condition VIN = VOUT(NOM) + 1 V IOUT=1mA VOUT = 90% VOUT(NOM) Min. Typ. Max. Unit 2.2 5.5 V -2 +2 % 250 mA VOUT=2.8V(NOM), IOUT=250mA 115 170 VOUT=3.0V(NOM), IOUT=250mA 108 162 VOUT=3.3V(NOM), IOUT=250mA 102 150 mV Line Regulation △VLINE VIN=2.2V~5V ,IOUT=1mA 0.1 mV Load Regulation △VLoad IOUT=1~200mA 15 mV Quiescent Current IQ IOUT=0mA 21 Short Current ISHORT VOUT=0V 390 Shut-down Current ISHDN VEN 0.01 Power Supply Rejection Rate PSRR 0.4 V, VIN = 4.8 V IOUT =10mA f=100Hz 95 f=1KHz 100 f=100KHz 60 f=1MHz 45 EN logic high voltage VENH VIN=5.5V, IOUT=1mA EN logic low voltage VENL VIN=5.5V, VOUT=0V EN Input Current IEN VEN = 0 to 5.5V μA mA 1.0 μA dB 1.2 COUT = 1μF, From assertion of Turn−On Time 25 V 0.4 V 1 μA 1.5 VEN to VOUT = 95% VOUT (NOM) IOUT =1mA 7 IOUT =200mA 5 mS Output Voltage Noise eNO 10Hz to 100KHz, Thermal shutdown TSDH Temperature rising 150 o threshold TSDL Temperature falling 120 o Under voltage lock out threshold Active Output Discharge Resistance VUVLO RLOW VEN