BL8554 300mA High PSRR, Linear Regulator DESCRIPTION FEATURES BL8554 series is a group of positive voltage output, low power consumption, low dropout voltage regulator. • • • • BL8554 can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be customized on command. • • BL8554 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module。 • • • BL8554 has 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 Power Consumption: 25uA（Typ.） Low output noise (47uVRMS) Standby Mode: 0.1uA Low dropout Voltage: 0.16V@300mA (Typ.) High Ripple Rejection: 73dB@100Hz (Typ.) Low Temperature Coefficient: ± 100ppm/°C Excellent Line regulation: 0.05%/V Build-in chip enable circuit Output Voltage Range: 1.0V~4.5V (customized on command every 0.1V step) Highly Accurate: ±2% Output Current Limit APPLICATIONS BL8554 is available in SOT-23-5, SC-70-5 and SOT23-3 packages which is lead free. • Power source for cellular phones and various kind of PCSs • Battery Powered equipment • Power Management of MP3, PDA, DSC, Mouse, PS2 Games • Reference Voltage Source • Regulation after Switching Power TYPICAL APPLICATION Load Regulation (VIN=4.5V) VOUT VDD Cin BL8554 CE Output Cout Vout(V) Input GND On/Off 0 NOTE: Input capacitor (Cin=1uF) and Output capacitor (Cout=3.3uF/4.7uF) are recommended in all application circuit. 50 100 150 200 Iout(mA) ELECTRICAL CHARACTERISTICS www.belling.com.cn 3.35 3.3 3.25 3.2 3.15 3.1 3.05 3 1 250 300 350 BL8554 ORDERING INFORMATION PIN CONFIGURATION BL8554 □ 1 □ 2 □ 3 □ 4 Product Classification Code Description 1 □ Temperature&Rohs: C:-40~85°C ,Pb Free Rohs Std. Package type: A5:SC-70-5 B5A:SOT-23-5(A) B5B:SOT-23-5(B) B3: SOT23-3 Packing type: TR:Tape&Reel (Standard) Output voltage: e.g. 15=1.5V 18=1.8V 45=4.5V 2 □ 3 □ 4 □ BL8554CA5TR□□ M: Product Code X: Output Voltage YW: Date Code Product Classification BL8554CB5ATR□□ M: Product Code X: Output Voltage YW: Date Code Product Classification BL8554CB5BTR□□ M: Product Code MARKING DESCRIPTON M: Product Code X: Output Voltage Vout Code Vout X: Output Voltage YW: Date Code I: B type Code Vout Code Product Classification 1.0V 0 2.3V 3 3.6V 6 1.1V 1 2.4V 4 3.7V 7 M: Product Code 1.2V 2 2.5V 5 3.8V 8 X: Output Voltage 1.3V 3 2.6V 6 3.9V 9 YW: Date Code 1.4V 4 2.7V 7 4.0V 0 1.5V 5 2.8V 8 4.1V 1 1.6V 6 2.9V 9 4.2V 2 1.7V 7 3.0V 0 4.3V 3 1.8V 8 3.1V 1 4.4V Vss Vin Vout CE NC 4 1.9V 9 3.2V 2 4.5V 5 2.0V 0 3.3V 3 2.1V 1 3.4V 4 2.2V 2 3.5V 5 Ground Pin Supply Voltage Input Output Voltage Chip Enable No Connection Optional marking information: From one source of assembly house, there are dots in addition to formal marking information. One is the pin1 indicator and the other is for internal identification of the assembly house. The dots are illustrated as below: Y: The Year of manufacturing, ”8” stands for year 2008, ”9” stands for year 2009, and “ 0 ” stands for year 2010. ① Internal ID of assembly house ② Pin 1. 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. www.belling.com.cn BL8554CB3TR□□ 2 BL8554 ABSOLUTE MAXIMUM RATING Parameter Value Max Input Voltage Operating Junction Temperature(Tj) Output Current Ambient Temperature(Ta) Power SC70-5 Dissipation SOT-23-5 SOT-23-3 Storage Temperature(Ts) Lead Temperature & Time 8V 125°C 300mA -40°C –85°C 250mW 250mW 250mW -40°C -150°C 260°C,10S Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability. RECOMMENDED WORK CONDITIONS Item Min Input Voltage Range Ambient Temperature 2 -40 Recommended Max. Unit 6 85 V °C ELECTRICAL CHARACTERISTICS (Test Conditions: Cin=1uF,Cout=3.3uF,TA=25°C, unless otherwise specified. ) BL8554, For Arbitrary Output Voltage Symbol Parameter Conditions Min Typ Vin Input Voltage 2 Vout VOUT>1.5V x0.98 Output Vin=Set Vout+1V Vout Vout Voltage 1mA≤Iout≤30mA Vout VOUT<=1.5V -0.03 Maximun Output Iout (Max.) Vin-Vout=1V 300 Current Vdrop1 Dropout Voltage,Vout≥2.8V ∆Vout ∆Vin ⋅ Vout Line Regulation ∆Vout / ∆Iout Load Regulation Iss Supply Current Supply Current (Srandby) Output Voltage Temperature Coefficiency Istandby ∆Vout ∆T ⋅ Vout www.belling.com.cn Max 6 Vout X1.02 Vout +0.03 Units V V mA Iout=100mA 50 80 mV Iout=300mA 160 220 mV Iout=40mA 2.8V≤Vin≤6V 0.05 0.2 %/V 60 100 mV 25 50 uA 0.1 1.0 uA Vin=Set Vout+1V 1mA≤Iout≤300mA Vin=Set Vout+1V Vin=Set Vout+1V Vce=GND Iout=30mA 3 ±100 ppm/°C BL8554 PSRR Ilim Vceh Vcel en Ripple Rejection Short Current Limit CE Input Voltage “H” CE Input Voltage “L” Output Noise F=100Hz, Ripple=0.5Vp-p Vin=Set Vout+1V Vout=0V 70 500 1.5 0 BW=10Hz~100kHz dB Vin 0.25 47 mA V V uVrms NOTE: Vdrop=Vin1-(Vout2*0.98) Vout2 is the output voltage when Vin=Vout1+1.0V and Iout=300mA. Vin1 is the input voltage at which the output voltage becomes 98% of Vout1 after gradually decreasing the input voltage. BLOCK DIAGRAM Explanation BL8554 series is a group of positive voltage output, low noise, low power consumption, low dropout voltage regulator. BL8554 can provide output value in the range of 1.0V~4.5V every 0.1V step. It also can be customized on command. BL8554 includes high accuracy voltage reference, error amplifier, current limit circuit and output driver module. BL8554 has 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%. www.belling.com.cn 4 BL8554 TYPICAL PERFORMANCE CHARACTERISTICS 1) Output Voltage vs. Output Current (with output short protection) 2) Output Voltage vs. Input Voltage Line Regulation Current limit Vs. Vout 3.5 3.313 3 3.3125 VOUT(V) Vout(V) 2.5 2 3.312 3.3115 1.5 3.311 1 3.3105 0.5 3 3.5 4 4.5 VIN(V) 5 5.5 6 0 0 500 1000 1500 Iload(mA) Iout=14(mA) 3) Dropout Voltage vs. Output Current 4) Ripple rejection vs. Frequency Dropout & Iout PSRR 80 180 160 70 Vout=3.3V 60 Vout=3.3V 120 50 PSRR(dB) Dropout(mV) 140 100 80 40 60 30 40 20 20 10 0 0 50 www.belling.com.cn 100 150 200 Iout(mA) 250 300 0 0.01 350 5 0.1 1 10 Freq(KHz) 100 1000 BL8554 5) Line transient response Cin=Cout=1uF Iout=25mA vout=3.3V 5V 5V Input Voltage Input Voltage 4V Output Ripple Voltage 4V Output Ripple Voltage 6) Load transient response Cin=Cout=1uF Vin=4.5v Vout=3.3V 50mA 50mA 1mA 1mA Output Current Output Current Output Voltage Output Voltage 7) Start up from EN 8) Shut down from EN Output Voltage Output Voltage CE CE www.belling.com.cn 6 BL8554 PACKAGE OUTLINE Package SC70-5 Devices per reel 3000Pcs Unit mm Devices per reel 3000Pcs Unit mm Package dimension： Package SOT-23-5 Package Dimension: www.belling.com.cn 7 BL8554 Package SOT-23-3 Devices per reel Package Dimension: www.belling.com.cn 8 3000Pcs Unit mm