BL8559 2A Linear Regulator GENERAL DESCRIPTION FEATURES BL8559 series are a group of positive voltage output, high precise, and low power consumption voltage regulator. Voltages are selectable in 100mV steps within a range of 1.2V to 3.6V. It also can be customized on command. • • • • • • • BL8559 series have excellent load and line transient response and good temperature characteristics, which can assure the stability of chip and power system. And it uses trimming technique to guarantee output voltage accuracy within ±2%. Low Quiescent Current: 26uA at 5V High PSRR: 60dB range to 1KHz Low Output Noise: 44uVRMS Low Dropout: 430mV at 1.5A load Maximum output current: 2.5A Highly Accurate: ±2% Low ESR Ceramic Capacitor Compatible APPLICATIONS • • • • • BL8559 series are available in SOT-223 package, which is lead (Pb)- free. Reference Voltage Source Battery Powered Equipment PC Peripherals Wireless Devices Instrumentation TYPICAL APPLICATION NOTE: Input capacitor (Cin=1uF) and Output capacitor (Cout=4.7uF) are recommended in all application circuit (Low ESR ceramic capacitor is available). BLC1466 L8559 IN Cin OUT VDD VOUT GND Cout BLOCK DIAGRAM Dropout (mV) Dropout Voltage vs Output Current 900 800 700 600 500 400 300 200 100 0 0.0 0.5 1.0 1.5 Iload (A) www.belling.com.cn 1 2.0 2.5 BL8559 MARKING DESCRIPTION ORDERING INFORMATION Product Classification JB: Product Code XX: Output Voltage A: A Type Pin Assignment BL8559 □ 1 □ 2 □ 3 □ 4 BL8559CLATR□□ Code Description 1 □ Temperature & Rohs: C: -40~85°C, Pb Free Rohs Std. Package type: LA: SOT-223, A Type LB: SOT-223, B Type Packing type: TR: Tape&Reel (Standard) Output voltage: e.g. 25=2.5V; 33=3.3V; 2 □ LL: Lot. No. 3 □ B: Fab Code 4 □ YW: Date Code Product Classification JB: Product Code XX: Output Voltage B: B Type Pin Assignment BL8559CLBTR□□ PIN CONFIGURATION Items Description GND VOUT Ground Output terminal Input terminal and Supply pin for internal circuit. VDD LL: Lot. No. B: Fab Code YW: Date Code XX: Output voltage code, e.g. 25=2.5V, 33=3.3V; Y: The Year of manufacturing, ”9” stands for year 2009, ”0” stands for year 2010; W: The week of manufacturing. ”A” stands for week 1, ”Z” stands for week 26, ” A ” stands for week 27, ” Z ” stands for week 52. ABSOLUTE MAXIMUM RATING Parameter Value Max Input Voltage 8V Operating Junction Temperature (TJ) 125°C Ambient Temperature (TA) -40°C~85°C Package Thermal Resistance: SOT-223: 20°C/W Storage Temperature (TS) -40°C~150°C Lead Temperature & Time 260°C, 10 Sec Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability. RECOMMENDED WORK CONDITIONS Parameter Value Input Voltage Range Ambient Temperature Max. 6V -40°C~85°C www.belling.com.cn 2 BL8559 ELECTRICAL CHARACTERISTICS Test Conditions: CIN=1uF,COUT=4.7uF,TA=25°C, unless otherwise specified. Symbol VDD Parameter Input Voltage VOUT>1.5 VOUT Output Voltage VOUT<=1.5 Conditions Min Typ VDD=Set VOUT+1V 1mA≤IOUT≤10mA VOUT X0.98 VOUT -0.03 VOUT 2.5 IOUT (Max.) Note 6 Maximum Output Current VDD-VOUT=1V VDROP Dropout Voltage IOUT=1.5A 430 ∆Vout ∆Vin ⋅ Vout Line Regulation IOUT=10mA 4V≤VDD≤6V 0.05 ∆Vout Load Regulation Is Supply Current ∆Vout ∆T ⋅ Vout Output Voltage Temperature Coefficient PSRR Ripple Rejection en Output Noise VDD=Set VOUT+1V 1mA≤IOUT≤2.5A VDD=Set VOUT+1V VOUT Floating IOUT=10mA f=100Hz, Ripple=0.5Vpp, VDD=Set VOUT+1V BW=10Hz~100KHz Max 6 VOUT X1.02 VOUT +0.03 Units V V A mV 0.2 15 26 %/V mV 50 uA ± 100 ppm/°C 60 dB 44 uVrms Note 6: The maximum power rating of each package is a constant, so along with the change of ILOAD, the VDD-VOUT should be controlled to a certain range to ensure the normal operation. www.belling.com.cn 3 BL8559 TYPICAL PERFORMANCE CHARACTERISTICS Supply Current vs. Input Voltage Ripple Rejection vs. Frequency 40 70 35 60 PSRR (dB) Is (uA) 30 25 20 15 50 40 30 10 20 5 10 0 3 4 5 6 7 0 100 8 1000 Frequency (Hz) VDD (V) Dropout Voltage vs. Output Current 900 3.40 3.38 3.36 3.34 3.32 3.30 3.28 3.26 3.24 3.22 3.20 800 700 Dropout (mV) Vout (V) Output Voltage vs. Input Voltage 600 500 400 300 200 100 3 4 5 6 VDD (V) 7 0 0.0 8 3.320 3.318 3.316 3.314 3.312 3.310 3.308 3.306 3.304 -50 0 50 100 150 T (ºC) www.belling.com.cn 0.5 1.0 Iload (A) Output Voltage vs. Temperature Vout (V) 10000 4 1.5 2.0 2.5 BL8559 TEST WAVEFORMS Line Transient Response CIN=1uF, Cout=4.7uF, VIN=4↔5V, VOUT=3V Load Transient Response CIN=1uF, Cout=4.7uF, IOUT=10↔1A, VOUT=3V VIN=5V IOUT=1A VIN=4V IOUT=10mA CH1: Output Current CH2: Output Voltage CH1: Input Voltage CH2: Output Voltage www.belling.com.cn 5 BL8559 PACKAGE LINE Package SOT-223 Package dimension： www.belling.com.cn Devices per reel 6 2500Pcs Unit mm