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| NJM2886 LOW DROPOUT VOLTAGE REGULATOR ! GENERAL DESCRIPTION The NJM2886 is low dropout voltage regulator designed for portable application. Advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current. ! PACKAGE OUTLINE NJM2886DL2 ! FEATURES " High Ripple Rejection 75dB typ. (f=1kHz) " Output Noise Voltage Vno=45Vrms " Output capacitor with 2.2F ceramic capacitor (Vo2.7V) " Output Current Io(max.)=500mA " High Precision Output Vo1.0% " Low Dropout Voltage 0.18V typ. (Io=300mA) " ON/OFF Contorol " Internal Short Circuit Current Limit " Internal Thermal Overload Protection " Bipolar Technology " Package Outline TO-252-5 ! PIN CONFIGURATION 3 NJM2886DL2 12345 PIN FUNCTION 1.CONTROL 2.VIN 3.GND 4.VOUT 5.NC ! EQUIVALENT CIRCUIT VIN Control Bandgap Reference Thermal Protection VOUT GND ! OUTPUT VOLTAGE RANK LIST Device Name VOUT Device Name NJM2886DL2-18 1.8V NJM2886DL2-03 NJM2886DL2-21 2.1V NJM2886DL2-33 NJM2886DL2-25 2.5V NJM2886DL2-35 NJM2886DL2-26 2.6V NJM2886DL2-38 NJM2886DL2-28 2.8V NJM2886DL2-05 VOUT 3.0V 3.3V 3.5V 3.8V 5.0V Ver.2004-01-16 -1- NJM2886 ! ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN (Ta=25C) RATINGS UNIT +14(*note 1) V 8(Tc=25C) Power Dissipation PD mW 0.8(Ta25C) Operating Temperature Topr -40 +85 C Storage Temperature Tstg -40 +125 C (*note 1): When input voltage is less than +14V, the absolute maximum control voltage is equal to the input voltage. ! ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=0.33F, Co=2.2F: Vo2.7V (Co=4.7F: Vo2.6V), Ta=25C) PARAMETER SYMBOL TEST CONDITION Output Voltage Vo Io=30mA Quiescent Current IQ Io=0mA Quiescent Current VCONT=0V IQ(OFF) at Control OFF Output Current Io Vo-0.3V Line Regulation Vo/VIN VIN=Vo+1V Vo+6.0V, Io=30mA Load Regulation Vo/Io Io=0 500mA Dropout Voltage Io=300mA VI-O ein=200mVrms,f=1kHz, Io=10mA Ripple Rejection RR Vo=3.0V Version Average Temperature Coefficient of Output Vo/Ta Ta=085C, Io=10mA Voltage f=10Hz80kHz, Io=10mA, Output Noise Voltage VNO Vo=3.0V Version Control Voltage for VCONT(ON) ON-state Control Voltage for VCONT(OFF) OFF-state MIN. -1.0% - - 500 - - - - - - 1.6 - TYP. - 200 - 650 - - 0.18 75 50 45 - - MAX. +1.0% 300 100 0.10 0.03 0.28 - - - - 0.6 UNIT V A nA mA %/V %/mA V dB ppm/C Vrms V V (*note 2): The above specification is a common specification for all output voltages. Therefore, it may be different from the individual specification for a specific output voltage. -2- Ver.2004-01-16 NJM2886 ! POWER DISSIPATION VS. AMBIENT TEMPERATURE NJU2886DL2 (Topr=-40~+85C,Tj=125C,PD=8W(TC=25C),PD=0.8W(Ta25C)) 10 Power Dissipation PD(W) 8 6 4 2 0 -50 Heat Sink HS=5C/W HS=10C/W HS=20C/W Without Heat Sink -25 0 25 50 75 100 Ambient Temperature Ta(C) ! TEST CIRCUIT A VIN IIN VIN VO IOUT 2.2F OR 4.7F(Vo2.6V) 0.33F NJM2886 V VO A V VCONT ICONT CONTROL GND Ver.2004-01-16 -3- NJM2886 ! TYPICAL APPLICATION 1 In the case where ON/OFF Control is not required: VIN 0.33F VIN VO VO 2.2F OR 4.7F(Vo2.6V) NJM2886 R (0300k) CONTROL GND Connect control terminal to VIN terminal The quiescent current can be reduced by using a resistance "R". Instead, it increases the minimum operating voltage. For further information, please refer to Figure "Output Voltage vs. Control Voltage". 2 In use of ON/OFF CONTROL: VIN VIN VO VO 2.2F OR 4.7F(Vo2.6V) 0.33F NJM2886 R CONTROL GND State of control terminal: *"H" output is enabled. *"L" or "open" output is disabled. -4- Ver.2004-01-16 NJM2886 ! ELECTRICAL CHARACTERISTICS NJM2886_3.0V Output Voltage vs. Input Voltage 4 3.2 NJM2886_3.0V Output Voltage vs. Output Current @:Ta=25 C VIN=4.0V Co=2.2uF(Ceramic) o @:Ta=25 C Co=2.2uF(Ceramic) 3.1 o 3.5 3 Output Voltage : Vo(V) Io=0A 3 Output Voltage : Vo(V) 3.3 3.4 2.5 2 2.9 Io=100mA 1.5 1 2.8 Io=300mA 0.5 2.7 2.7 2.8 2.9 3 3.1 3.2 0 0 200 400 600 800 1000 Input Voltage : V IN(V) NJM2886_3.0V Ground Pin Current v.s. Output Current 30 @:Ta=25 C VIN=4.0V Co=2.2uF(Ceramic) 25 o Output Current : Io(mA) NJM2886_3.0V Dropout Voltage vs. Output Current @:Ta=25 C Co=2.2uF(Ceramic) 0.3 o 0.35 Ground Pin Current : IGND (mA) 20 Dropout Voltage:dVI-O (V) 0.25 0.2 15 0.15 10 0.1 5 0.05 0 0 100 200 300 400 500 600 700 0 0 100 200 300 400 500 600 700 Output Current : IO(mA) Output Current:Io(mA) 60 NJM2886_3.0V Control Current vs. Control Voltage @:Ta=25 C Vin=4.0V Co=2.2uF (Ceramic) Io=30mA o 4 NJM2886_3.0V Output Voltage vs. Control Voltage 3.5 50 3 Rc=0 Control Current : ICont(uA) 40 Output Voltage : Vo(V) 2.5 Rc=50k 2 30 20 Rc=0 Rc=100k Rc=50k 1.5 Rc=100k 1 10 0.5 @:Ta=25 C Vin=4.0V Co=2.2uF (Ceramic) Io=30mA o 0 0 0.5 1 1.5 2 2.5 3 3.5 4 0 0 0.5 1 1.5 2 2.5 3 Control Voltage : VCont(V) Control Voltage : VCont(V) Ver.2004-01-16 -5- NJM2886 ! ELECTRICAL CHARACTERISTICS NJM2886_3.0V Equivalent Serise Resistance vs. Output Current 100 o 100 NJM2886_3.0V Output Noise Voltage vs. Output Current @:Ta=25 C VIN=4.0V LPF:80kHz @:Ta=25 C Co=2.2uF(Ceramic) o Equivalent Serise Resistance : ESR() Output Noise Voltage : Vn(uVrms) 80 10 Co=2.2uF(Ceramic) 60 STABLE REGION 1 40 Co=4.7uF(Ceramic) 20 0.1 0 0.001 0.01 0.1 1 10 100 1000 0.02 0.001 0.01 0.1 1 10 100 10 3 Output Current : Io(mA) Output Current : Io(mA) NJM2886_3.0V Ripple Rejection vs. Output Current NJM2886_3.0V Ripple Rejection Ratio v.s. Frequency 100 Io=0mA 100 90 90 f=1kHz Ripple Rejection Ratio : RR (dB) Ripple Rejection : RR (dB) 80 80 70 Io=30mA Io=10mA 70 f=10kHz 60 60 50 50 40 @:Ta=25 C VIN=4.0V ein=200mVrms Co=2.2uF(Ceramic) 10 100 1k 10k 100k o 40 @:Ta=25 C VIN=4.0V ein=200mVrms Co=2.2uF(Ceramic) 0.01 0.1 1 10 100 1000 o 30 30 20 20 0.001 Frequency : f (Hz) Output Current : Io(mA) -6- Ver.2004-01-16 NJM2886 ! ELECTRICAL CHARACTERISTICS NJM2886_3.0V Dropout Voltage vs. Temperature 2 @:VIN=4V Io=30mA CL=2.2uF(Ceramic) 0.4 NJM2886_3.0V Control Voltage v.s. Temperature 0.35 0.25 0.2 Control Voltage :Vcont-off [V] @:Io=300mA Co=2.2uF(Ceramic) 0 50 100 150 0.3 Dropout Voltage : dVI-O(V) 1.5 1 0.15 0.1 0.5 0.05 0 -50 0 -50 0 50 100 o 150 Temperature : Ta ( oC) Temperature : Ta ( C) 4 NJM2886_3.0V Output Voltage vs. Temperature NJM2886_3.0V Quiescent Current v.s. Input Voltage 300 @:VIN=4V Output is open. Co=2.2uF(Ceramic) including Icont 3.5 250 Quiescent Current : IQ (uA) @:VIN=4.0V Io=30mA (Ceramic) Co=2.2uF -50 0 50 100 o 3 Output Voltage : Vo(V) 200 2.5 2 150 1.5 100 1 50 0.5 0 0 150 200 -50 0 50 100 o 150 Temperature : Ta ( C) Temperature : Ta ( C) Ver.2004-01-16 -7- NJM2886 [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. -8- Ver.2004-01-16 |
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