NJM2861/62 LOW DROPOUT VOLTAGE REGULATOR ! GENERAL DESCRIPTION The NJM2861/62 is a low dropout voltage regulator. Advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current. ! PACKAGE OUTLINE NJM2861F/62F ! FEATURES " High Ripple Rejection 70dB typ. (f=1kHz,Vo=3V Version) " Output Noise Voltage Vno=30Vrms typ.(Cp=0.01F) " Output capacitor with 1.0uF ceramic capacitor (Vo2.7V) " Output Current Io(max.)=100mA " High Precision Output Vo1% " Low Dropout Voltage 0.10V typ. (Io=60mA) " ON/OFF Control (Active High) " Internal Short Circuit Current Limit " Internal Thermal Overload Protection " Bipolar Technology " Package Outline SOT-23-5 ! PIN CONFIGURATION 5 4 1. CONTROL (Active High) 2. GND 3. NOISE BYPASS 4. VOUT 5. VIN 1 2 3 NJM2861F 5 4 1.VIN 2.GND 3.CONTROL (Active High) 4.NOISE BYPASS 1 2 3 5.VOUT NJM2862F ! EQUIVALENT CIRCUIT VOUT VIN Cont Thermal Protection Bandgap Reference Noise Bypass GND Ver.2006-02-20 -1- NJM2861/62 ! OUTPUT VOLTAGE RANK LIST Device Name VOUT Device Name 2.1V NJM286xF21 NJM286xF285 2.5V NJM286xF25 NJM286xF03 2.6V NJM286xF26 NJM286xF31 2.7V NJM286xF27 NJM286xF33 2.8V NJM286xF28 NJM286xF35 VOUT 2.85V 3.0V 3.1V 3.3V 3.5V Device Name NJM286xF38 NJM286xF04 NJM286xF46 NJM286xF47 NJM286xF05 VOUT 3.8V 4.0V 4.6V 4.7V 5.0V ! ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Control Voltage VCONT (Ta=25C) RATINGS UNIT +14 V +14(*1) V 350(*2) Power Dissipation PD SOT-23-5 mW 200(*3) Operating Temperature Topr -40 +85 C Storage Temperature Tstg -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) (*3): Device itself ! ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=0.1F, Co=1.0F: Vo2.7V (Co=2.2F: Vo2.6V), Cp=0.01F, Ta=25C) PARAMETER Output Voltage SYMBOL Vo Io=30mA Quiescent Current Quiescent Current at Control OFF Output Current Line Regulation Load Regulation IQ Io=0mA, expect Icont - - 120 IQ(OFF) VCONT=0V - Io Dropout Voltage VI-O Ripple Rejection RR Vo-0.3V VIN=Vo+1V Vo+6V, Io=30mA Io=0 60mA Io=60mA ein=200mVrms,f=1kHz, Io=10mA VIN=Vo+1V, Vo=3V Version Average Temperature Coefficient of Output Voltage Vo/Ta Output Noise Voltage VNO Control Voltage for ON-state Control Voltage for OFF-state VCONT(ON) VCONT(OFF) Vo/VIN Vo/Io TEST CONDITION MIN. -1% MAX. +1% UNIT V 180 A - 100 nA 100 130 - - 0.10 0.03 mA %/V %/mA - - - 0.10 0.18 V - 70 - dB Ta=085C, Io=10mA - 50 - ppm/C f=10Hz80kHz, Io=10mA, Vo=3V Version - 30 - Vrms 1.6 - - - 0.6 V V - TYP. 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.2006-02-20 NJM2861/62 ! TEST CIRCUIT A IIN VIN VIN 0.1F A V VOUT NJM2861/62 ICONT CONTROL VCONT *4 1.0F (ceramic IOUT V VOUT NOISE BYPASS GND Cp=0.01F *4 Vo2.6V version: Co=2.2F(ceramic) Ver.2006-02-20 -3- NJM2861/62 ! TYPICAL APPLICATION 1 In case that ON/OFF Control is not required: VIN VIN VOUT VOUT 1.0F 0.1F *5 NJM2861/62 R (0~300k) CONTROL NOISE BYPASS Cp=0.01F GND *5 Vo2.6V version: Co=2.2F Connect control terminal to VIN terminal 2 In use of ON/OFF CONTROL: VIN VIN VOUT VOUT 1.0F *5 NJM2861/62 0.1F R CONTROL NOISE BYPASS GND Cp=0.01F *5 Vo2.6V version: Co=2.2F 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 0.01F greater to avoid the problem. %In the case of using a resistance "R" between VIN and control. The current flow into the control terminal while the IC is ON state (ICONT) can be reduced when a pull up resistance "R" is inserted between VIN and the control terminal. The minimum control voltage for ON state (VCONT (ON)) is increased due to the voltage drop caused by ICONT and the resistance "R". The ICONT is temperature dependence as shown in the "Control Current vs. Temperature" characteristics. Therefore, the resistance "R" should be carefully selected to ensure the control voltage exceeds the VCONT (ON) over the required temperature range. -4- Ver.2006-02-20 NJM2861/62 ! POWER DISSIPATION vs. AMBIENT TEMPERATURE NJM2861/62F Power Dissipation (Topr=-40+85,Tj=125,PD=200mW(Ta25)) Power Dissipation PD(mW) 500 On Board(114.3x76.2x1.6mm, FR-4) 400 300 Device itself 200 100 0 -50 -25 0 25 50 75 100 Ambient Temperature Ta() Ver.2006-02-20 -5- NJM2861/62 ! ELECTRICAL CHARACTERISTICS NJM2861/62_3.0V Output Voltage vs. Input Voltage 3.2 NJM2861/62_3.0V Output Voltage vs. Output Current 4 o @:Ta=25 C Co=1F(Ceramic) Cp=0.01uF 3.5 3.1 Output Voltage : Vo(V) Output Voltage : Vo (V) 3 Io=0A 3 2.9 Io=30mA 2.5 2 1.5 1 2.8 o Io=80mA 2.7 2.7 @:Ta=25 C V IN=4V Co=1F(Ceramic) Cp=0.01mF 0.5 0 2.8 2.9 3 3.1 3.2 3.3 3.4 0 50 NJM2861/62_3.0V Ground Pin Current vs. Output Current 20 150 200 NJM2861/62_3.0V Dropout Voltage vs. Output Current 0.3 o @:Ta=25 C VIN=4V Co=1F(Ceramic) Cp=0.01mF o @:Ta=25 C Co=1F(Ceramic) Cp=0.01mF 0.25 15 Dropout Voltage : dVI-O (V) Ground Pin Current : IGND (mA) 100 Output Current : Io(mA) Input Voltage : V IN(V) 10 5 0.2 0.15 0.1 0.05 0 0 0 20 40 60 80 100 0 120 20 40 Output Current : I O(mA) NJM2861/62_3.0V Control Current vs. Control Voltage 30 60 80 100 120 Output Current : Io(mA) NJM2861/62_3.0V Output Voltage vs. Control Voltage 4 o @:Ta=25 C V IN=4V Co=1F(Ceramic) Cp=0.01F Io=30mA 3.5 Rc=0 3 Output Voltage : Vo(V) Control Current : Icont( A) 25 20 15 Rc=50k Rc=0 10 2.5 Rc=100k 2 1.5 Rc=50k 1 o @:Ta=25 C VIN=4V Co=1F(Ceramic) Cp=0.01F Io=30mA 5 0.5 Rc=100k 0 0 0 0.5 1 1.5 2 2.5 Control Voltage : Vcont(V) -6- 3 3.5 4 0 0.5 1 1.5 2 2.5 3 Control Voltage : Vcont(V) Ver.2006-02-20 NJM2861/62 ! ELECTRICAL CHARACTERISTICS NJM2861/62_3.0V Load Regulation vs. Output Current NJM2861/62_3.0V Peak Output Current vs. Input Voltage 200 0 o @:Ta=25 C V IN=4V Co=1F(Ceramic) Cp=0.01F Peak Output Current : IoMAX(mA) Load Regulation : dVo/dIo (mV) -10 -20 -30 -40 -50 -60 150 100 50 o @:Ta=25 C Co=1F(Ceramic) Cp=0.01F -70 -80 0 0 50 100 4 150 6 8 10 NJM2861/62_3.0V Quiescent Current vs. Input Voltage o o @:Ta=25 C Output is open. Co=1F(Ceramic) Cp=0.01F including Icont Output Noise Voltage : Vn ( Vrms) Quiescent Current : IQ ( A) 14 NJM2861/62_3.0V Output Noise Voltage vs. Output Current 100 2000 1500 12 Input Voltage : VIN(V) Output Current : Io(mA) 1000 500 @:Ta=25 C VIN=4.0V Cp=0.01F LPF:100kHz 80 60 Co=1F(Ceramic) 40 20 Co=2.2F(Ceramic) 0 0.001 0 0 5 10 15 0.01 0.1 1 NJM2861/62_3.0V Ripple Rejection Ratio vs. Frequency 90 90 Io=10mA f=1kHz Io=0mA 80 80 Ripple Rejection : RR (dB) Ripple Rejection Ratio : RR (dB) 100 NJM2861/62_3.0V Ripple Rejection vs. Output Current 100 100 70 60 Io=30mA 50 o 40 @:Ta=25 C V IN=4.0V ein=200mVrms Co=1F(Ceramic) Cp=0.01F 30 20 10 100 70 60 50 40 30 1k Frequency : f (Hz) Ver.2006-02-20 10 Output Current : Io(mA) Input Voltage : VIN(V) 10k 100k f=10kHz o @:Ta=25 C VIN=4V ein=200mVrms Co=1F(Ceramic) Cp=0.01F 20 0.001 0.01 0.1 1 10 100 Output Current : Io(mA) -7- NJM2861/62 ! ELECTRICAL CHARACTERISTICS NJM2861/62_3.0V Equivalent Serise Resistance vs. Output Current 100 o Equivalent Serise Resistance : ESR( ) @:Ta=25 C Co=1F(Ceramic) Cp=0.01F 10 Oscillation Free 1 0.1 0.02 1 10 1m 100 10m 100m Output Current : Io(mA) NJM2861/62_3.0V Output Voltage vs. Ambient Temperature NJM2861/62_3.0V Dropout Voltage vs. Ambient Temperature 0.3 3.1 @:VIN=4V Io=30mA Co=1F(Ceramic) Cp=0.01F @:VIN=4V Io=60mA Co=1F(Ceramic) Cp=0.01F 0.25 Output Voltage Vo (V) Dropout Voltage : dVI-O (V) 3.05 0.2 0.15 0.1 3 2.95 0.05 2.9 0 -50 0 50 100 -50 150 0 50 100 Ambient Temperature Ta ( C) Ambient Temperature : Ta ( C) NJM2861/62_3.0V Control Voltage vs. Ambient Temperature NJM2861/62_3.0V Control Current v.s. Ambient Temperature 2 10 @:V IN=4V Output is open. Co=1F(Ceramic) Cp=0.01F V CONT=1.6V 1.5 Control Current : ICONT ( A) Control Voltage : VCONT(ON) (V) 8 1 0.5 6 4 2 @:VIN=4V Io=30mA Co=1F(Ceramic) Cp=0.01F 0 0 -50 0 50 100 o Ambient Temperature : Ta ( C) -8- 150 o o 150 -50 0 50 100 o Temperature Ta ( C) Ver.2006-02-20 NJM2861/62 ! ELECTRICAL CHARACTERISTICS NJM2861/62_3.0V Quiescent Current vs. Ambient Temperature NJM2861/62_3.0V Short Circuit Current v.s. Temperature 200 200 @:VIN=4V Output is short to ground. Co=1F(Ceramic) Cp=0.01F @:VIN=4V Output is open. Co=1F(Ceramic) Cp=0.01F Short Circuit Current : ISC (mA) Quiescent Current : IQ ( A) 150 100 50 0 150 100 50 0 -50 0 50 100 150 -50 0 o 100 150 Temperature : Ta ( C) NJM2861/62_3.0V Line Regulation v.s. Temperature NJM2861/62_3.0V Load Regulation v.s. Temperature 0.1 0.03 @:dV IN=4-9V Io=30mA Co=1F(Ceramic) Cp=0.01F 0.05 0 -0.05 -0.1 -50 @:VIN=4V Io=0-60mA Co=1F(Ceramic) Cp=0.01F 0.025 Load Regulation : dVo/dIo (%/mA) Line Regulation : dVo/dIo (%/V) 50 o Ambient Temperature : Ta ( C) 0.02 0.015 0.01 0.005 0 0 50 100 150 -50 0 50 100 150 o o Temperature : Ta ( C) Temperature : Ta ( C) NJM2861/62_3.0V Output Voltage vs. Ambient Temperature 4 3.5 Output Voltage Vo (V) 3 2.5 2 1.5 1 @:VIN=4V Io=30mA Co=1F(Ceramic) Cp=0.01F 0.5 0 -50 0 50 100 150 200 o Ambient Temperature Ta ( C) Ver.2006-02-20 -9- NJM2861/62 ! ELECTRICAL CHARACTERISTICS NJM2861/62_3.0V ON/OFF Transient Response Without Load NJM2861/62_3.0V ON/OFF Transient Response 4 6 0 5 -5 Output Voltage 3 -10 2 -15 1 o @:Ta=25 C VIN=4.0V Co=1.0F(Ceramic) Cp=0.01F Io=30mA 0 -1 0 4 8 12 Time : t [mS] 16 5 0 -5 4 Output Voltage -10 3 -15 2 -20 1 -25 0 -30 -1 20 Control Voltage o @:Ta=25 C VIN=4.0V Co=1.0F(Ceramic) Cp=0.01F Io=0mA Control Voltage : Vo [V] Output Voltage : Vo [V] 5 5 Output Voltage : Vo [V] 6 Control Voltage : Vo [V] Control Voltage 10 7 10 7 -20 -25 -30 0 1 2 NJM2861/62_3.0V Line Transient Response 3 Time : t [s] 4 5 NJM2861/62_3.0V Load Transient Response 3.1 7 3.08 3.08 6 3.06 150 100 3.04 4 3.02 3 Output Voltage 3 2 2.98 o @:Ta=25 C Co=1.0F(Ceramic) Cp=0.01F Io=30mA 2.96 2.94 0 40 80 120 Time : t [ s] 160 Output Voltage : Vo [V] 5 Input Voltage Input Voltage : VIN [V] Output Voltage : Vo [V] 3.06 3.04 50 3.02 0 -50 2.98 1 2.96 0 2.94 -1 200 Output Voltage 3 -100 o -150 @:Ta=25 C V IN=4.0V Co=1.0F(Ceramic) Cp=0.01F -200 2.92 0 40 80 Output Current : Io [mA] Output Current 120 Time : t [ s] 160 -250 200 [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. - 10 - Ver.2006-02-20