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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,Vo=3V Version) Output Noise Voltage Vno=30Vrms typ.(Cp=0.01F) Output capacitor with 1.0F ceramic capacitor (Vo2.7V) Output Current Io(max.)=300mA 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 NJM2883E EQUIVALENT CIRCUIT VIN Control PIN FUNCTION 1.VOUT 2.GND 3.GND 4.NOISE BYPASS 5.CONTROL (Active High) 6.GND 7.GND 8.VIN VOUT Thermal Protection Bandgap Reference Noise Bypass GND Ver.2004-12-22 -1- NJM2883 OUTPUT VOLTAGE RANK LIST (* : Under development) Device Name VOUT Device Name *NJM2883E15 1.5V *NJM2883E31 *NJM2883E17 1.7V NJM2883E33 NJM2883E18 1.8V NJM2883E345 *NJM2883E21 2.1V *NJM2883E35 NJM2883E25 2.5V *NJM2883E38 NJM2883E28 2.8V *NJM2883E04 *NJM2883E285 2.85V *NJM2883E43 NJM2883E29 2.9V *NJM2883E47 NJM2883E03 3.0V NJM2883E05 ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Control Voltage VCONT Power Dissipation PD Operating Temperature Topr Storage Temperature Tstg VOUT 3.1V 3.3V 3.45V 3.5V 3.8V 4.0V 4.3V 4.7V 5.0V (Ta=25C) RATINGS UNIT +14 V +14(*1) V 650(*2) mW -40 +85 C -40 +125 C (*1): When input voltage is less than +14V, the absolute maximum control voltage is equal to the input voltage. (*2): Mounted on glass epoxy board based on EIA/JEDEC. (114.3x76.2x1.6mm: 2Layers) Operating voltage VIN=+2.3V +14.0V (In case of Vo<2.1V) 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. Output Voltage Vo Io=30mA -1.0% +1.0% - Quiescent Current IQ Io=0mA, expect Icont 120 180 - Quiescent Current VCONT=0V 100 IQ(OFF) - - at Control OFF Output Current Io Vo - 0.3V 300 400 Line Regulation 0.10 Vo/VIN VIN=Vo+1VVo+6V, Io=30mA - - Load Regulation 0.03 Vo/Io Io=0300mA - - Io=100mA 0.10 0.18 Dropout Voltage 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 VCONT(ON) 1.6 - - Control Voltage for OFF-state VCONT(OFF) 0.6 - - UNIT V A nA mA %/V %/mA V dB ppm/C Vrms V V -2- Ver.2004-12-22 NJM2883 (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. Output Voltage Vo Io=30mA -1.0% +1.0% - Quiescent Current IQ Io=0mA, expect Icont 120 180 - Quiescent Current VCONT=0V 100 IQ(OFF) - - at Control OFF Output Current Io Vo - 0.3V 300 400 Line Regulation 0.10 Vo/VIN VIN=Vo+1VVo+6V, Io=30mA - - Load Regulation 0.03 Vo/Io Io=0300mA - - 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 VCONT(ON) 1.6 - - Control Voltage for OFF-state VCONT(OFF) 0.6 - - 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. UNIT V A nA mA %/V %/mA dB ppm/C Vrms V V TEST CIRCUIT A IIN VIN VOUT IOUT V VOUT VIN 0.1F NJM2883 1.0F *3 (ceramic) A ICONT CONTROL GND NOISE BYPASS Cp=0.01F V VCONT *3 1.9V Vo 2.6V version: Co=2.2F(ceramic) Vo 1.8V version: Co=4.7F(ceramic) Ver.2004-12-22 -3- NJM2883 TYPICAL APPLICATION 1 In case that ON/OFF Control is not required: VIN VIN 0.1F NJM2883 R (0300k) CONTROL GND VOUT VOUT 1.0F *4 NOISE BYPASS Cp=0.01F *4 1.9V Vo 2.6V version: Co=2.2F Vo 1.8V version: Co=4.7F 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 0.1F R NJM2883 1.0F *4 CONTROL GND NOISE BYPASS Cp=0.01F *4 1.9V Vo 2.6V version : Co=2.2uF Vo 1.8V version : Co=4.7uF 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. -4- Ver.2004-12-22 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] Control Voltage : Vcont [V] Ver.2004-12-22 -5- NJM2883 ELECTRICAL CARACTERISTICS 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 @Ta=25 Co=1.0uF(Ceramic) Cp=0.01uF VDD=4.0V NJM2883_3.0V Output Noise Voltage v.s. Output Current 200 Output Noise Voltage : Vn [uVrms] 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 100 90 Ripple Rejection Ratio : RR[dB 80 70 60 50 40 30 20 10 0 10 Noise Bypass Capacitor : Cp [uF] 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 100000 Output Current : Io [mA] NJM2883_3.0V Ripple Rejection Ratio v.s. Frequency Io=10mA Io=30mA @Ta=25 Co=1.0uF(Ceramic) Cp=0.01uF VDD=4.0V ein=200mV 1000 Frequency : f[Hz] 10000 f=1kHz f=10kHz @Ta=25 Co=1.0uF(Ceramic) Cp=0.01uF VDD=3.8V ein=200mV 1 10 100 1000 100 0 0.001 0.01 0.1 Output Current : Io[mA] NJM2883_3.0V Equivalent Series Resistance v.s. Output Current 100 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.2004-12-22 NJM2883 ELECTRICAL CARACTERISTICS NJM2883_3.0V Dropout Voltage v.s. Temperature NJM2883_3.0V Control Voltage_ON v.s. Temperature 2.0 Control Voltage_ON : VcontON [V] 0.30 0.25 Dropout Voltage : Vi-o [V] 0.20 0.15 0.10 0.05 0.00 -50 1.5 1.0 Co=1.0uF(Ceramic) Cp=0.01uF Io=100mA 0 50 Temerature : Ta [] 100 150 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 [] Ver.2004-12-22 -7- NJM2883 [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. -8- Ver.2004-12-22 |
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