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| NJM2863/64 LOW DROPOUT VOLTAGE REGULATOR s GENERAL DESCRIPTION The NJM2863/64 is a low dropout voltage regulator designed for VCO application. Advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current. s FEATURES qHigh Ripple Rejection qOutput Noise Voltage s PACKAGE OUTLINE NJM2863F NJM2864F 75dB typ. (f=1kHz) Vno=19Vrms typ. (Cp=0.01F, Co=1.0F(Ceramic)) Vno=12Vrms typ. (Cp=0.1F, Co=10F(Tantalum)) qOutput capacitor with 1.0uF ceramic capacitor qOutput Current Io(max.)=100mA qHigh Precision Output Vo1% qLow Dropout Voltage 0.10V typ. (Io=60mA) qON/OFF Control (Active High) qInternal Short Circuit Current Limit qInternal Thermal Overload Protection qBipolar Technology qPackage Outline MTP5 (MTP5:2.8x2.9x1.1mm) s PIN CONFIGURATION 1 2 3 4 5 NJM2863F s EQUIVALENT CIRCUIT PIN FUNCTION 5 1. CONTROL (Active High) 1 2 2. GND 3. NOISE BYPASS 3 4 4. VOUT 5. VIN NJM2864F PIN FUNCTION 1.VIN 2.GND 3.CONTROL (Active High) 4.NOISE BYPASS 5.VOUT VIN Cont Thermal Protection VOUT Noise Bypass Bandgap Reference GND s OUTPUT VOLTAGE RANK LIST Device Name VOUT 2.7V NJM286xF27 2.8V NJM286xF28 2.9V NJM286xF29 3.0V NJM286xF03 Ver.2003-03-10 -1- NJM2863/64 s 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. s ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=0.1F, Co=1.0uF, Cp=0.01F, Ta=25C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. Io=30mA Output Voltage Vo -1% - Io=0mA, expect Icont Quiescent Current 120 IQ - Quiescent Current VCONT=0V IQ(OFF) - - at Control OFF Output Current Io 100 130 Vo-0.3V Line Regulation Vo/VIN VIN=Vo+1V Vo+6V, Io=30mA - - Load Regulation Vo/Io Io=0 60mA - - Dropout Voltage Io=60mA 0.10 VI-O - ein=200mVrms,f=1kHz, Io=10mA, Ripple Rejection RR 75 - Vo=3V Version Average Temperature Coefficient of Output Vo/Ta Ta=0+85C, Io=10mA 50 - Voltage f=10Hz80kHz, Io=10mA, Output Noise Voltage 1 VNO1 19 - Cp=0.01F, Co=1.0uF(Ceramic) Vo=3V Version f=10Hz80kHz, Io=10mA, Output Noise Voltage 2 VNO2 12 - Cp=0.1F, Co=10uF(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. s TEST CIRCUIT A VIN 0.1uF 1.0uF (ceramic) IIN VIN VOUT IOUT MAX. +1% 180 100 0.10 0.03 0.18 - - - - - 0.6 UNIT V A nA mA %/V %/mA V dB ppm/C Vrms Vrms V V V VOUT A V VCONT ICONT CONTROL GND NOISE BYPASS Cp=0.01uF -2- Ver.2003-03-10 NJM2863/64 s TYPICAL APPLICATION x In case that ON/OFF Control is not required: VIN VIN 0.1uF VOUT 1.0uF (ceramic) VOUT R (0300k) CONTROL GND NOISE BYPASS Cp=0.01uF 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". y In use of ON/OFF CONTROL: VIN VIN VOUT 1.0uF (ceramic) VOUT 0.1uF R CONTROL GND NOISE BYPASS Cp=0.01uF 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 0.01uF greater to avoid the problem. Ver.2003-03-10 -3- 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. -4- Ver.2003-03-10 |
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