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| NJM2883 LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION The NJM2883 is a low dropout voltage regulator in EMP8 package Advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current. It is suitable for portable applications. FEATURES High Ripple Rejection 75dB typ. (f=1kHz) Output Noise Voltage Vno=30Vrms (Cp=0.01F) Output capacitor with 1.0uF ceramic capacitor (Vo2.7V) Output Current Io(max.)=150mA High Precision Output Vo1% Low Dropout Voltage 0.10V typ. (Io=100mA) ON/OFF Control (Active High) Operating Voltage Range +2.3V+14V (Vo2.0V version) Internal Short Circuit Current Limit Internal Thermal Overload Protection Bipolar Technology Package Outline EMP8 (5.0x6.0x1.5mm) PIN CONFIGURATION 1 2 3 4 8 7 6 5 PACKAGE OUTLINE NJM2883E PIN FUNCTION 1.VOUT 2.GND 3.GND 4.NOISE BYPASS 5.CONTROL (Active High) 6.GND 7.GND 8.VIN NJM2883E EQUIVALENT CIRCUIT VIN Cont Thermal Protection VOUT Noise Bypass Bandgap Reference GND Ver.2003-10-31 -1- NJM2883 (Ta=25C) RATINGS UNIT +14 V +14(*note 1) V 650(*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 board. 76.2x114.3x1.6mm(Double layer, FR-4) ELECTRICAL CHARACTERISTICS (Vo>2.0V version : 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. MAX. Io=30mA Output Voltage Vo -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 300 400 Vo-0.3V Line Regulation 0.10 Vo/VIN VIN=Vo+1V Vo+6V, Io=30mA - - Load Regulation 0.03 Vo/Io Io=0 300mA - - Dropout Voltage Io=100mA 0.10 0.18 VI-O - ein=200mVrms,f=1kHz, Io=10mA, Ripple Rejection RR 75 - - Vo=3V Version Average Temperature Vo/Ta Ta=0+85C, Io=10mA 50 - - Coefficient of Output Voltage f=10Hz80kHz, Io=10mA, Output Noise Voltage VNO 30 - - Vo=3V Version Control Voltage for ON-state 1.6 VCONT(ON) - - Control Voltage for OFF-state VCONT(OFF) 0.6 - - (Vo2.0V version : VIN=Vo+1V, CIN=0.1F, Co=2.2F: Vo1.9V (Co=4.7F: Vo1.8V), Cp=0.01F, Ta=25C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. Io=30mA Output Voltage Vo -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 300 400 Vo-0.3V Line Regulation 0.10 Vo/VIN VIN=Vo+1V Vo+6V, Io=30mA - - Load Regulation 0.03 Vo/Io Io=0 300mA - - ein=200mVrms, f=1kHz, Io=10mA, Ripple Rejection RR 80 - - Vo=1.8V Version Average Temperature Vo/Ta Ta=085C, Io=10mA 50 - - Coefficient of Output Voltage f=10Hz80kHz, Io=10mA, Output Noise Voltage VNO 20 - - Vo=1.8V Version Control Voltage for ON-state 1.6 VCONT(ON) - - Control Voltage for OFF-state VCONT(OFF) 0.6 - - (*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. ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Control Voltage VCONT Power Dissipation PD Operating Temperature Topr Storage Temperature Tstg UNIT V A nA mA %/V %/mA V dB ppm/C Vrms V V UNIT V A nA mA %/V %/mA dB ppm/C Vrms V V -2- Ver.2003-10-31 NJM2883 OUTPUT VOLTAGE RANK LIST Device Name VOUT NJM2883E18 1.8V NJM2883E25 2.5V NJM2883E28 2.8V NJM2883E03 3.0V NJM2883E33 3.3V From 1.5V to 5.0V serialization is possible with 0.1V step. If you have any questions or requests, please contact to our business section. TEST CIRCUIT A VIN IIN VIN VOUT IOUT V VOUT 0.1uF 1.0uF *note1 (ceramic) A V VCONT ICONT CONTROL GND NOISE BYPASS Cp=0.01uF *note1 1.9V Vo 2.6V version : Co=2.2uF(ceramic) Vo 1.8V version : Co=4.7uF(ceramic) Ver.2003-10-31 -3- NJM2883 TYPICAL APPLICATION 1 In case that ON/OFF Control is not required: VIN VIN 0.1uF R (0300k) CONTROL GND VOUT VOUT 1.0uF *note1 (ceramic) NOISE BYPASS Cp=0.01uF *note1 1.9V Vo 2.6V version : Co=2.2uF(ceramic) Vo 1.8V version : Co=4.7uF(ceramic) 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 0.1uF R CONTROL GND NOISE BYPASS 1.0uF *note1 (ceramic) Cp=0.01uF *note1 1.9V Vo 2.6V version : Co=2.2uF(ceramic) Vo 1.8V version : Co=4.7uF(ceramic) 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.2003-10-31 -4- NJM2883 ELECTRICAL CARACTERISTICS NJM2883_3.0V Output Voltage v.s. Input Voltage @Ta=25 Co=1.0uF(Ceramic) Cp=0.01uF Output Voltage : Vo [V] 3.5 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 NJM2883_3.0V Output Voltage v.s. Output Current 3.3 Output Voltage : Vo [V] 3.1 Io=0mA 2.9 Io=300mA Io=100mA 2.5 2.5 2.7 2.9 3.1 3.3 3.5 Input Voltage : Vi [V] NJM2883_3.0V Ground Pin Current v.s. Output Current @Ta=25 Co=1.0uF(Ceramic) Cp=0.01uF 2.7 @Ta=25 Co=1.0uF(Ceramic) Cp=0.01uF 100 200 300 400 500 600 20 Ground Pin Current : IGND [mA 0.30 0.25 Dropout Voltage : dVi-o [V] 0.20 0.15 0.10 0.05 Output Current : Io [mA] NJM2883_3.0V Dropout Voltage v.s. Output Current 16 @Ta=25 Co=1.0uF(Ceramic) Cp=0.01uF 12 8 4 0 0 125 250 375 500 Output Current : Io [mA] NJM2883_3.0V Control Current v.s. Control Voltage @Ta=25 Co=1.0uF(Ceramic) Cp=0.01uF Io=30mA Rc=100k Rc=50k Rc=0 0.00 0 100 200 300 400 500 Output Current : Io [A] NJM2883_3.0V Output Voltage v.s. Control Voltage 20 3.5 3.0 Output Voltage : Vo [V] 2.5 2.0 1.5 1.0 0.5 0.0 Control Current : Icont [uA] 16 12 Rc=100k Rc=50k Rc=0 @Ta=25 Co=1.0uF(Ceramic) Cp=0.01uF Io=30mA 1.5 2.0 2.5 3.0 8 4 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0.0 0.5 1.0 Control Voltage : Vcont [V] Ver.2003-10-31 Control Voltage : Vcont [V] -5- NJM2883 200 Output Noise Voltage : Vn [uVrms] NJM2883_3.0V Output Noise Voltage v.s. Noise Bypass Capacitor 100 Output Noise Voltage : Vn [uVrms] @Ta=25 Co=1.0uF(Ceramic) VDD=4.0V Io=10mA NJM2883_3.0V Output Noise Voltage v.s. Output Current @Ta=25 Co=1.0uF(Ceramic) Cp=0.01uF VDD=4.0V 160 80 120 60 80 40 40 20 0 1E-06 0.00001 0.0001 0.001 0.01 0.1 0 0.001 0.01 0.1 1 10 100 1000 Noise Bypass Capacitor : Cp [uF] Output Current : Io [mA] 100 90 Ripple Rejection Ratio : RR[dB NJM2883_3.0V Ripple Rejection Ratio v.s. Frequency Io=0mA Ripple Rejection Ratio : RR[dB 100 90 80 70 60 50 40 30 20 10 NJM2883_3.0V Ripple Rejection Ratio v.s. Frequency 80 70 60 50 40 30 20 10 0 10 100 1000 Frequency : f[Hz] NJM2883_3.0V Equivalent Series Resistance v.s. Output Current 100 Io=10mA Io=30mA @Ta=25 Co=1.0uF(Ceramic) Cp=0.01uF VDD=4.0V ein=200mV 10000 100000 f=1kHz f=10kHz @Ta=25 Co=1.0uF(Ceramic) Cp=0.01uF VDD=3.8V ein=200mV 1 10 100 1000 0 0.001 0.01 0.1 Output Current : Io[mA] Equivalent Series Resistance : ESR[] 10 1 Stable Region 0.1 @Ta=25 Co=1.0uF(Ceramic) Cp=0.01uF VDD=4.0V 0.01 0.001 0.01 0.1 1 10 100 1000 Output Current : Io [mA] -6- Ver.2003-10-31 NJM2883 0.30 0.25 NJM2883_3.0V Dropout Voltage v.s. Temperature NJM2883_3.0V Control Voltage_ON v.s. Temperature 2.0 Control Voltage_ON : VcontON [V] Dropout Voltage : Vi-o [V] 1.5 0.20 0.15 0.10 0.05 0.00 -50 0 50 Temerature : Ta [] Co=1.0uF(Ceramic) Cp=0.01uF Io=100mA 100 150 1.0 0.5 VDD=4.0V Co=1.0uF(Ceramic) Cp=0.01uF -50 0 50 100 150 0.0 Temperature : Ta [] NJM2883_3.0V Quiescent Current v.s. Temperature 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -50 NJM2883_.3.0V Output Voltage v.s. Temerature 300 250 200 150 100 50 0 Quiescent Current : Iq [uA] Output Voltage : Vo [V] VDD =4.0V Co=1.0uF(Ceramic) Cp=0.01uF Io=30mA 0 50 100 150 200 VDD=4.0V Co=1.0uF(Ceramic) Cp=0.01uF Include Icont -50 0 50 100 150 Temerature : Ta [] Temperature : Ta [] [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.2003-10-31 -7- |
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