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| NJM2860 LOW DROPOUT VOLTAGE REGULATOR s GENERAL DESCRIPTION The NJM2860 is a low dropout voltage regulator. Advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current. It features small SC-88A package. s FEATURES qHigh Ripple Rejection 70dB typ. (f=1kHz) qOutput Noise Voltage Vno=30Vrms (Cp=0.01F) qOutput capacitor with 1.0uF ceramic capacitor (Vo2.7V) qOutput Current Io(max.)=100mA qHigh Precision Output Vo1.0% 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 SC88A s PIN CONFIGURATION 1 2 3 4 5 s PACKAGE OUTLINE NJM2860F3 NJM2860F3 s EQUIVALENT CIRCUIT VIN Cont PIN FUNCTION 1. CONTROL (Active High) 2. GND 3. NOISE BYPASS 4. VOUT 5. VIN VOUT Thermal Protection Noise Bypass Bandgap Reference GND s OUTPUT VOLTAGE RANK LIST Device Name VOUT Device Name NJM2860F3-21 2.1V NJM2860F3-31 NJM2860F3-33 NJM2860F3-25 2.5V NJM2860F3-26 2.6V NJM2860F3-35 NJM2860F3-27 2.7V NJM2860F3-38 NJM2860F3-28 2.8V NJM2860F3-04 NJM2860F3-285 2.85V NJM2860F3-46 NJM2860F3-03 3.0V NJM2860F3-47 VOUT 3.1V 3.3V 3.5V 3.8V 4.0V 4.6V 4.7V Device Name NJM2860F3-05 VOUT 5.0V NJM2860 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 250(note 2) 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. (note 2) On glass epoxy board. (50x50x1.6mm) s ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=0.1F, Co=1.0uF: Vo2.7V (Co=2.2uF: Vo2.6V), Cp=0.01F, Ta=25C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. Output Voltage Vo Io=30mA -1.0% +1.0% - Io=0mA, expect Icont Quiescent Current 120 180 IQ - Quiescent Current VCONT=0V 100 IQ(OFF) - - at Control OFF Output Current Io 100 130 Vo-0.3V Line Regulation 0.10 Vo/VIN VIN=Vo+1V Vo+6V, Io=30mA - - Load Regulation 0.03 Vo/Io Io=0 60mA - - Dropout Voltage Io=60mA 0.10 0.18 VI-O - ein=200mVrms,f=1kHz, Io=10mA, Ripple Rejection RR 70 - - Vo=3V Version Average Temperature Coefficient of Output Vo/Ta Ta=085C, Io=10mA 50 - - Voltage f=10Hz80kHz, Io=10mA, Output Noise Voltage VNO 30 - - Vo=3V Version Control Voltage for 1.6 VCONT(ON) - - ON-state Control Voltage for VCONT(OFF) 0.6 - - OFF-state (note 3) 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 UNIT V A nA mA %/V %/mA V dB ppm/C Vrms V V A VIN IIN VIN VOUT 1.0uF OR 2.2uF(Vo<2.6V) (Ceramic Capacitor) IOUT V VOUT 0.1uF ICONT A V VCONT CONTROL NOISE BYPASS Cp=0.01uF GND NJM2860 s TYPICAL APPLICATION x In the case where ON/OFF Control is not required: VIN VIN VOUT 1.0uF OR 2.2uF(Vo<2.6V) (Ceramic Capacitor) VOUT 0.1uF R (0~300k ) CONTROL NOISE BYPASS Cp=0.01uF 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". y In use of ON/OFF CONTROL: VIN VOUT 1.0uF OR 2.2uF(Vo<2.6V) (Ceramic Capacitor) R CONTROL NOISE BYPASS Cp=0.01uF GND VIN VOUT 0.1uF 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. NJM2860 s TYPICAL CHARACTERISTICS NJM2860 s TYPICAL CHARACTERISTICS NJM2860 s TYPICAL CHARACTERISTICS NJM2860 [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. |
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