NJM2886 LOW DROPOUT VOLTAGE REGULATOR ! GENERAL DESCRIPTION The NJM2886 is low dropout voltage regulator designed for portable application. Advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current. ! PACKAGE OUTLINE ! FEATURES " High Ripple Rejection 75dB typ. (f=1kHz) " Output Noise Voltage Vno=45µVrms " Output capacitor with 2.2µF ceramic capacitor (Vo≥2.7V) " Output Current Io(max.)=500mA " High Precision Output Vo±1.0% " Low Dropout Voltage 0.18V typ. (Io=300mA) " ON/OFF Contorol " Internal Short Circuit Current Limit " Internal Thermal Overload Protection " Bipolar Technology " Package Outline TO-252-5 ! PIN CONFIGURATION NJM2886DL2 3 12345 NJM2886DL2 PIN FUNCTION 1.CONTROL 2.VIN 3.GND 4.VOUT 5.NC ! EQUIVALENT CIRCUIT VIN VOUT Control Thermal Protection Bandgap Reference GND ! OUTPUT VOLTAGE RANK LIST Device Name VOUT Device Name NJM2886DL2-18 1.8V NJM2886DL2-03 NJM2886DL2-21 2.1V NJM2886DL2-33 NJM2886DL2-25 2.5V NJM2886DL2-35 NJM2886DL2-26 2.6V NJM2886DL2-38 NJM2886DL2-28 2.8V NJM2886DL2-05 Ver.2004-01-16 VOUT 3.0V 3.3V 3.5V 3.8V 5.0V -1- NJM2886 ! ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN (Ta=25°C) RATINGS UNIT +14(*note 1) V 8(Tc=25°C) Power Dissipation PD mW 0.8(Ta≤25°C) Operating Temperature Topr −40 ∼ +85 °C Storage Temperature Tstg −40 ∼ +125 °C (*note 1): When input voltage is less than +14V, the absolute maximum control voltage is equal to the input voltage. ! ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=0.33µF, Co=2.2µF: Vo≥2.7V (Co=4.7µF: Vo≤2.6V), Ta=25°C) PARAMETER SYMBOL TEST CONDITION Output Voltage Vo Io=30mA Quiescent Current IQ Io=0mA Quiescent Current VCONT=0V IQ(OFF) at Control OFF Output Current Io Vo-0.3V Line Regulation ∆Vo/∆VIN VIN=Vo+1V ∼ Vo+6.0V, Io=30mA Load Regulation ∆Vo/∆Io Io=0 ∼ 500mA Dropout Voltage Io=300mA ∆VI−O ein=200mVrms,f=1kHz, Io=10mA Ripple Rejection RR Vo=3.0V Version Average Temperature Coefficient of Output ∆Vo/∆Ta Ta=0∼85°C, Io=10mA Voltage f=10Hz∼80kHz, Io=10mA, Output Noise Voltage VNO Vo=3.0V Version Control Voltage for VCONT(ON) ON-state Control Voltage for VCONT(OFF) OFF-state MIN. -1.0% − TYP. − 200 MAX. +1.0% 300 UNIT V µA − − 100 nA 500 − − − 650 − − 0.18 0.10 0.03 0.28 mA %/V %/mA V − 75 − dB − ±50 − ppm/°C − 45 − µVrms 1.6 − − V − − 0.6 V (*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. -2- Ver.2004-01-16 NJM2886 ! POWER DISSIPATION VS. AMBIENT TEMPERATURE NJU2886DL2 (Topr=-40~+85°C,Tj=125°C,PD=8W(TC=25°C),PD=0.8W(Ta≤25°C)) Power Dissipation PD(W) 10 ∞ Heat Sink 8 θHS=5°C/W 6 θHS=10°C/W 4 θHS=20°C/W 2 Without Heat Sink 0 -50 -25 0 25 50 75 100 Ambient Temperature Ta(°C) ! TEST CIRCUIT A IIN VIN VIN 0.33µF A V Ver.2004-01-16 VCONT ICONT VO NJM2886 IOUT V VO 2.2µF OR 4.7µF(Vo≤2.6V) CONTROL GND -3- NJM2886 ! TYPICAL APPLICATION 1 In the case where ON/OFF Control is not required: VIN VIN VO 0.33µF VO 2.2µF OR 4.7µF(Vo≤2.6V) NJM2886 R (0～300kΩ) CONTROL 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”. 2 In use of ON/OFF CONTROL: VIN VIN VO NJM2886 0.33µF VO 2.2µF OR 4.7µF(Vo≤2.6V) R CONTROL GND State of control terminal: •“H”→ output is enabled. •“L” or “open” → output is disabled. -4- Ver.2004-01-16 NJM2886 ! ELECTRICAL CHARACTERISTICS NJM2886_3.0V Output Voltage vs. Input Voltage 3.2 NJM2886_3.0V Output Voltage vs. Output Current 4 o o @:Ta=25 C Co=2.2uF(Ceramic) @:Ta=25 C VIN=4.0V Co=2.2uF(Ceramic) 3.5 3.1 Output Voltage : Vo(V) Output Voltage : Vo(V) 3 Io=0A 3 2.9 Io=100mA 2.8 2.5 2 1.5 1 Io=300mA 0.5 2.7 2.7 2.8 2.9 3 3.1 3.2 3.3 0 3.4 0 200 NJM2886_3.0V Ground Pin Current v.s. Output Current 600 800 1000 NJM2886_3.0V Dropout Voltage vs. Output Current 0.35 30 o o @:Ta=25 C Co=2.2uF(Ceramic) @:Ta=25 C VIN=4.0V Co=2.2uF(Ceramic) 0.3 Dropout Voltage:dVI-O (V) 25 Ground Pin Current : IGND (mA) 400 Output Current : Io(mA) Input Voltage : V IN(V) 20 15 10 5 0.25 0.2 0.15 0.1 0.05 0 0 0 100 200 300 400 500 600 0 700 100 NJM2886_3.0V Control Current vs. Control Voltage 60 200 300 400 500 600 700 Output Current:Io(mA) Output Current : I O(mA) NJM2886_3.0V Output Voltage vs. Control Voltage 4 o @:Ta=25 C Vin=4.0V Co=2.2uF(Ceramic) Io=30mA 50 3.5 Rc=0Ω Output Voltage : Vo(V) Control Current : ICont(uA) 3 40 30 Rc=0Ω 20 Rc=50kΩ Rc=100kΩ 2.5 Rc=50kΩ 2 1.5 Rc=100kΩ 1 o @:Ta=25 C Vin=4.0V Co=2.2uF(Ceramic) Io=30mA 10 0.5 0 0 0 0.5 1 1.5 2 2.5 Control Voltage : VCont(V) Ver.2004-01-16 3 3.5 4 0 0.5 1 1.5 2 2.5 3 Control Voltage : VCont(V) -5- NJM2886 ! ELECTRICAL CHARACTERISTICS NJM2886_3.0V Equivalent Serise Resistance vs. Output Current NJM2886_3.0V Output Noise Voltage vs. Output Current 100 100 o @:Ta=25 C Co=2.2uF(Ceramic) o 80 Equivalent Serise Resistance : ESR(Ω) Output Noise Voltage : Vn(uVrms) @:Ta=25 C VIN=4.0V LPF:80kHz Co=2.2uF(Ceramic) 60 40 Co=4.7uF(Ceramic) 20 0 0.001 0.01 0.1 1 10 100 10 STABLE REGION 1 0.1 0.02 0.001 1000 0.01 NJM2886_3.0V Ripple Rejection Ratio v.s. Frequency 1 10 100 10 3 NJM2886_3.0V Ripple Rejection vs. Output Current 100 100 Io=0mA 90 0.1 Output Current : Io(mA) Output Current : Io(mA) 90 70 Io=10mA Io=30mA 60 50 40 70 f=10kHz 60 50 40 o o @:Ta=25 C VIN=4.0V ein=200mVrms Co=2.2uF(Ceramic) 30 20 10 100 30 1k Frequency : f (Hz) -6- Ripple Rejection : RR (dB) Ripple Rejection Ratio : RR (dB) f=1kHz 80 80 10k 100k @:Ta=25 C VIN=4.0V ein=200mVrms Co=2.2uF(Ceramic) 20 0.001 0.01 0.1 1 10 100 1000 Output Current : Io(mA) Ver.2004-01-16 NJM2886 ! ELECTRICAL CHARACTERISTICS NJM2886_3.0V Dropout Voltage vs. Temperature 0.4 NJM2886_3.0V Control Voltage v.s. Temperature 2 @:VIN=4V Io=30mA CL=2.2uF(Ceramic) 0.35 Control Voltage :Vcont-off [V] Dropout Voltage : dVI-O(V) 0.3 0.25 0.2 0.15 0.1 1.5 1 0.5 0.05 @:Io=300mA Co=2.2uF(Ceramic) 0 -50 0 50 100 0 150 -50 0 Temperature : Ta ( oC) 150 NJM2886_3.0V Quiescent Current v.s. Input Voltage 300 3.5 @:VIN=4V Output is open. Co=2.2uF(Ceramic) including Icont 250 Quiescent Current : IQ (uA) 3 Output Voltage : Vo(V) 100 o NJM2886_3.0V Output Voltage vs. Temperature 4 50 Temperature : Ta ( C) 2.5 2 1.5 1 200 150 100 50 0.5 @:VIN=4.0V Io=30mA Co=2.2uF(Ceramic) 0 -50 0 0 50 100 150 o Temperature : Ta ( C) Ver.2004-01-16 200 -50 0 50 100 150 o Temperature : Ta ( C) -7- NJM2886 [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.2004-01-16