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| NJM2863/64 Ultra Low Noise Low Dropout Voltage Regulator ! GENERAL DESCRIPTION The NJM2863/64 is a 2ch low dropout voltage regulator designed for VCO Applications. Advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current. ! PACKAGE OUTLINE NJM2863F/64F ! FEATURES " High Ripple Rejection 75dB typ. (f=1kHz) " Output capacitor with 1.0F ceramic capacitor " Output Noise Voltage Vno=19Vrms typ. (Cp=0.01F, Co=1.0F(Ceramic)) Vno=12Vrms typ. (Cp=0.1F, Co=10F(Tantalum)) " Output Current Io(max.)=100mA " High Precision Output Vo1.0% " Low Dropout Voltage 0.10V typ. (Io=60mA) " ON/OFF Control (Active High) " Internal Short Circuit Current Limit " Internal Thermal Overload Protection " Bipolar Technology " Package Outline MTP5 ! PIN CONFIGURATION 5 4 123 PIN FUNCTION 1.CONTROL 2.GND 3.NOISE BYPASS 4.VOUT 5.VIN NJM2863F 1.VIN 2.GND 3.CONTROL 4.NOISE BYPASS 5.VOUT NJM2864F ! EQUIVALENT CIRCUIT VIN Control Bandgap Reference Thermal Protection Noise Bypass VOUT GND ! OUTPUT VOLTAGE RANK LIST Device Name VOUT 2.1V NJM286xF21 2.5V NJM286xF25 2.7V NJM286xF27 2.8V NJM286xF28 2.85V NJM286xF285 Device Name NJM286xF29 NJM286xF03 NJM286XF33 NJM286xF05 VOUT 2.9V 3.0V 3.3V 5.0V Ver.2004-01-20 -1- NJM2863/64 ! ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Control Voltage VCONT Power Dissipation PD Operating Temperature Topr Storage Temperature Tstg (Ta=25C) RATINGS UNIT +14 V +14(*note 1) V 200 mW -40 +85 C -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=0.1F, Co=1.0F: Vo2.7V (Co=2.2F: Vo2.6V), Cp=0.01F, Ta=25C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. Output Voltage Vo Io=30mA -1.0% - Quiescent Current IQ Io=0mA, except Icont 120 - Quiescent Current VCONT=0V IQ(OFF) - - at Control OFF Output Current Io Vo-0.3V 100 130 Line Regulation Vo/VIN VIN=Vo+1V Vo+6V, Io=30mA - - Load Regulation Vo/Io Io=0 100mA - - Io=60mA 0.10 Dropout Voltage VI-O - ein=200mVrms,f=1kHz, Io=10mA, Ripple Rejection RR 75 - Vo=3V Version Average Temperature Coefficient of Output Vo/Ta Ta=085C, Io=10mA 50 - Voltage f=10Hz80kHz, Io=10mA, Cp=0.01F, Output Noise Voltage1 VNO1 19 - Co=1.0F (Ceramic), Vo=3V Version f=10Hz80kHz, Io=10mA, Cp=0.1F, Output Noise Voltage2 VNO2 12 Co=10F (Tantalum), Vo=3V Version Control Voltage for 1.6 VCONT(ON) - ON-state Control Voltage for VCONT(OFF) - - OFF-state (*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. ! TEST CIRCUIT MAX. +1.0% 180 100 - 0.10 0.03 0.18 - - - UNIT V A nA mA %/V %/mA V dB ppm/C Vrms Vrms - 0.6 V V A VIN IIN VIN VOUT 1.0F (ceramic) 0.1F NJM2863/64 NOISE CONTROL BYPASS IOUT V VOUT A V VCONT ICONT OR 2.2F: Vo2.6V GND Cp=0.01F -2- Ver.2004-01-20 NJM2863/64 ! TYPICAL APPLICATION 1 In the case where ON/OFF Control is not required: VIN 0.1F VIN VOUT VOUT 1.0F (ceramic) OR 2.2F: Vo2.6V 2863/64 NOISE CONTROL BYPASS R (0300k) GND Cp=0.01F 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 VOUT VOUT 1.0F (ceramic) OR 2.2F: Vo2.6V 0.1F 2863/64 R NOISE CONTROL BYPASS GND Cp=0.01F State of control terminal: *"H" output is enabled. *"L" or "open" output is disabled. %Noise bypass Capacitance Cp Noise bypass capacitance Cp reduces noise generated by band-gap reference circuit. Noise level and ripple rejection will be improved when larger Cp is used. Use of smaller Cp value may cause oscillation. Use the Cp value of 0.01F greater to avoid the problem. Ver.2004-01-20 -3- NJM2863/64 ! ELECTRICAL CHARACTERISTICS NJM2863/64_3.0V Output Voltage v.s. Input Voltage @:Ta=25 C Co=1.0uF(Ceramic) Cp=0.01uF 3.1 o 3.2 4 NJM2863/64_3.0V Output Voltage vs. Output Current 3.5 Output Voltage :Vo [V] 3 Io=0A 3 Output Voltage :Vo [V] 2.5 2 2.9 Io=30mA 1.5 1 2.8 Io=100mA 0.5 @:Ta=25 C VIN=4V Co=1.0uF(Ceramic) Cp=0.01uF o 2.7 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 0 0 50 100 150 200 Input Voltage :Vin [V] Output Current :Io [mA] 20 NJM2863/64_3.0V Ground Pin Current vs. Output Voltage @:Ta=25o C VIN=4V Co=1.0uF(Ceramic) Cp=0.01uF 0.3 NJM2863/64_3.0V Dropout Voltage vs. Output Current @:Ta=25 C Co=1.0uF(Ceramic) Cp=0.01uF o 0.25 Ground Pin Current :Ignd [mA] 15 Dropout Voltage :dVi-o [V] 0 20 40 60 80 100 120 0.2 10 0.15 0.1 5 0.05 0 0 0 20 40 60 80 100 120 Output Current :Io [mA] Output Current :Io [mA] 30 NJM2863/64_3.0V Control Current v.s. Control Voltage @:Ta=25 C Vin=4.0V Co=1.0uF(Ceramic) Cp=0.01uF Io=30mA o 4 NJM2863/64_3.0V Output Voltage v.s. Control Voltage @:Ta=25 C Vin=4.0V Co=1.0uF(Ceramic) Cp=0.01uF Io=30mA Rc=0 Rc=50k o 3.5 25 Control Current :Icont [uA] 20 Output Voltage :Vo [V] 3 2.5 15 Rc=0 2 Rc=100k 1.5 Rc=50k 10 1 5 0.5 Rc=100k 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] -4- Ver.2004-01-20 NJM2863/64 ! ELECTRICAL CHARACTERISTICS NJM2863/64_3.0V Output Noise Voltage vs. Noise Bypass Capacitor @:Ta=25 oC VIN=4V Co=1uF(Ceramic) Io=10mA 300 100 NJM2863/64_3.0V Output Noise Voltage vs. Output Current @:Ta=25 C VIN=4.0V LPF:80kHz o 250 Output Noise Voltage : Vn(uVrms) 200 Output Noise Voltage :Vn [uVrms] 80 60 150 40 100 Co=1.0uF(Ceramic) Cp=0.01uF 50 20 0 1p 10p 100p 1000p 0.01u 0.1u 0 0.001 Co=10uF(Tantalum) Cp=0.1uF 0.01 0.1 1 10 100 Noise Bypass Capacitor : Cp(F) Output Current :Io [mA] 90 NJM2863/64_3.0V Ripple Rejection Ratio v.s. Frequency 100 NJM2863/64_3.0V Ripple Rejection vs. Output Current 80 Io=10mA 90 f=1kHz 80 Ripple Rejection Ratio :RR [dB] 70 Io=30mA 60 Ripple Rejection : RR (dB) 70 60 50 50 f=10kHz @:Ta=25o C VIN=4V ein=200mVrms Co=1.0uF(Ceramic) Cp=0.01uF 0.01 0.1 1 10 100 40 @:Ta=25 oC VIN=4.0V ein=200mVrms Co=1.0uF(Ceramic) Cp=0.01uF 10 100 1k 10k 100k 40 30 30 20 20 0.001 Frequency :f [Hz] Output Current : Io(mA) 100 NJM2863/64_3.0V Equivalent Series Resistance vs. Output Current @:Ta=25 C VIN=4V Co=1.0uF(Ceramic) Cp=0.01uF o Equivalent Series Resistance :ESR [ohm] 10 STABLE REGION 1 0.1 0.02 0.001 0.01 0.1 1 10 100 Output Current :Io [mA] Ver.2004-01-20 -5- NJM2863/64 ! ELECTRICAL CHARACTERISTICS NJM2863/64_3.0V Dropout Voltage v.s. Temperature @:Io=60mA Co=1.0uF(Ceramic) Cp=0.01uF 0.25 0.3 2 NJM2863/64_3.0V Control Voltage v.s. Temperature @:VIN=4.0V Output is open. Co=1.0uF(Ceramic) Cp=0.01uF 0.2 Control Voltage :Vcont-off [V] 1.5 Dropout Voltage :dVi-o [V] 0.15 1 0.1 0.5 0.05 0 -50 0 50 100 150 0 -50 0 50 100 150 Temperature :Ta ["C] Temperature :Ta ["C] 3.5 NJM2863/64_3.0V Output Voltage v.s. Temperature 300 NJM2863/64_3.0V Quiescent Current v.s. Temperature @:VIN=4.0V Output is open. Co=1.0uF(Ceramic) Cp=0.01uF 3 250 2.5 Quiescent Current : Iq [uA] @:VIN=4.0V Io=30mA Co=1.0uF(Ceramic) Cp=0.01uF -50 0 50 100 150 200 Output Voltage :Vo [V] 200 2 150 1.5 100 1 0.5 50 0 0 -50 0 50 100 150 Temperature :Ta ["C] Temperature :Ta ["C] -6- Ver.2004-01-20 NJM2863/64 [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. Ver.2004-01-20 -7- |
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