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| NJM2861/62 Preliminary LOW DROPOUT VOLTAGE REGULATOR s GENERAL DESCRIPTION The NJM2861/62 are low dropout voltage regulators. Advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current. 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% 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 s PACKAGE OUTLINE NJM2861F NJM2862F NJM2861F PIN FUNCTION 5 1. CONTROL (Active High) 1 2 2. GND 3. NOISE BYPASS 3 4 4. VOUT 5. VIN NJM2862F PIN FUNCTION 1.VIN 2.GND 3.CONTROL (Active High) 4.NOISE BYPASS 5.VOUT s EQUIVALENT CIRCUIT VIN Cont Thermal Protection Noise Bypass VOUT Bandgap Reference GND s OUTPUT VOLTAGE RANK LIST Device Name VOUT Device Name 2.1V NJM286xF21 NJM286xF33 2.5V NJM286xF25 NJM286xF38 2.6V NJM286xF26 NJM286xF05 2.7V NJM286xF27 2.8V NJM286xF28 2.85V NJM286xF285 3.0V NJM286xF03 VOUT 3.3V 3.8V 5.0V NJM2861/62 Preliminary (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: Vo2.7V (Co=2.2uF: Vo2.6V), Cp=0.01F, Ta=25C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Io=30mA Output Voltage Vo -1% +1% V - Io=0mA, expect Icont Quiescent Current 120 180 IQ A - Quiescent Current VCONT=0V 100 nA IQ(OFF) - - at Control OFF Output Current Io 100 130 mA Vo-0.3V Line Regulation 0.10 %/V VIN=Vo+1V Vo+6V, Io=30mA Vo/VIN - - Load Regulation 0.03 %/mA Vo/Io Io=0 60mA - - Dropout Voltage Io=60mA 0.10 0.18 V VI-O - ein=200mVrms,f=1kHz, Io=10mA Ripple Rejection RR 70 dB - - VIN=Vo+1V, Vo=3V Version Average Temperature Coefficient of Output Vo/Ta Ta=085C, Io=10mA 50 ppm/C - - Voltage f=10Hz80kHz, Io=10mA, Output Noise Voltage VNO 30 Vrms - - Vo=3V Version Control Voltage for 1.6 V VCONT(ON) - - ON-state Control Voltage for VCONT(OFF) 0.6 V - - 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 s ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Control Voltage VCONT Power Dissipation PD Operating Temperature Topr Storage Temperature Tstg A VIN IIN VIN VOUT IOUT 0.1uF 1.0uF OR 2.2uF(Vo2.6V) (ceramic) Cp=0.01uF V VOUT A V VCONT ICONT CONTROL GND NOISE BYPASS NJM2861/62 Preliminary s TYPICAL APPLICATION x In case that ON/OFF Control is not required: VIN VIN 0.1uF VOUT VOUT 1.0uF OR 2.2uF(Vo2.6V) (ceramic) 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 VOUT 1.0uF OR 2.2uF(Vo2.6V) (ceramic) 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. NJM2861/62 Preliminary [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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