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| NJU7254 www..com 2ch LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION The NJU7254 is a 2ch low dropout voltage regulator with ON/OFF control. Advanced C-MOS technology achieves high ripple rejection and low quiescent current. SOT-23-6 package, 100mAx2ch output current and 1.0F small capacitor make NJU7254 suitable for space conscious applications. FEATURES High Ripple Rejection 65dB typ. (f=1kHz,Vo=3V Version) Low Quiescent Current 18A /ch(typ.), 30A /total (typ.) Output capacitor with 1.0F ceramic capacitor Output Current Io(max.)=100mA x2ch High Precision Output Vo1.0% Low Dropout Voltage 0.09V typ. (Io=60mA, Vo=3V Version) ON/OFF Control (Each ch.) Internal Short Circuit Current Limit C-MOS technology Package Outline SOT-23-6 PIN CONFIGURATION 654 PACKAGE OUTLINE NJU7254F1 123 NJU7254F1 EQUIVALENT CIRCUIT V IN PIN FUNCTION 1. VOUT2 2. GND 3. VOUT1 4. CONTROL1 5. VIN 6. CONTROL2 V OUT1 Thermal Protection CONTROL1 Output Control Vref Current Limit V OUT2 CONTROL2 Output Control Current Limit GND Ver.2006-06-13 -1- NJU7254 www..com OUTPUT VOLTAGE RANK LIST Device Name VOUT NJU7254F1-2121 NJU7254F1-0303 NJU7254F1-0521 CH1 2.1V 3.0V 5.0V CH2 2.1V 3.0V 2.1V (Ta=25C) RATINGS +9 +9(*1) 200(*2) SOT-23-6 400(*3) -40~+85 -40~+125 UNIT V V mW ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Control Voltage VCONT Power Dissipation Operating Temperature Storage Temperature PD Topr Tstg C C (*1): When input voltage is less than +14V, the absolute maximum control voltage is equal to the input voltage. (*2): Device itself. (*3): Mounted on glass epoxy board based on EIA/JEDEC. (114.3x76.2x1.6mm: 2Layers) Operating voltage VIN=+2.3 +8V (In case of Vo<2.1V version) ELECTRICAL CHARACTERISTICS (VIN=VO+1V(*4), CIN=0.1F, CO=1.0F(Vo2.0V : Co=2.2F), Ta=25C) PARAMETER Output Voltage Input Voltage Quiescent Current 1 Quiescent Current 2 Quiescent Current at Control OFF Output Current Short Circuit Limit Line Regulation Load Regulation Dropout Voltage SYMBOL TEST CONDITION Io=30mA Vo VIN VCONT1=VIN, VCONT2=0V or IQ1 VCONT1=0V, VCONT2=VIN, Io=0mA, Include ICONT VCONT1= VCONT2=VIN, Io=0mA, Include ICONT IQ2 IQ(OFF) Io VCONT1= VCONT2=0V MIN. -1.0% - - - - 100 - - - - - - - - - 2 1.6 - TYP. - - 18 30 0.1 - 40 - - 0.11 0.10 0.09 0.07 100 75 5 - - MAX. +1.0% 8 35 60 1 - - 0.20 0.03 0.16 0.15 0.14 0.12 - - 10 - 0.3 UNIT V V A A A mA mA %/V %/mA V V V V ppm/C Vrms M V V Vo-0.1V (Vo2.0V Version) Vo-0.3V (Vo2.1V Version) Vo=0V ILIM VIN=Vo+1V~Vo+6V (Vo<2.0V Version) Vo/VIN VIN=Vo+1V~8.0V (Vo2.0V Version), Io=30mA Vo/Io Io=0~100mA 2.1VVo2.4V 2.5VVo2.7V VI-O Io=60mA 2.8VVo3.3V 3.4VVo5.0V Average Temperature Vo/Ta Ta=0~85C, Io=10mA Coefficient of Output Voltage Output Noise Voltage VNO1 f=10Hz 80kHz,Io=0mA,Vo=3.0V Version Pull-down Resistance RCONT Control Voltage for ON-state VCONT(ON) Control Voltage for OFF-state VCONT(OFF) (*4) : VIN =Vo+1V means add 1V to higher output voltage. (*5) : The output voltage excludes under 2.1V. The above specification is a common specification for all voltages. Therefore, it may be different from the individual specification for a specific output Voltage. Ver.2006-06-13 -2- NJU7254 www..com POWER DISSIPATION vs. AMBIENT TEMPERATURE NJU7254F1 Power Dissipation (Topr=-40+85,Tj=125) 500 Power Dissipation PD(mW) 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() TEST CIRCUIT IIN CIN= 0.1F CO1=1.0F (*6) (ceramic) VIN VOUT1 A VIN NJU7254 ICONT1 IOUT1 V VOUT1 A CONTROL1 VOUT2 V VCONT1 IOUT2 V VOUT2 A V VCONT2 ICONT2 CONTROL2 CO2=1.0F (*6) (ceramic) GND (*6) Vo2.0V version : CO=2.2F(ceramic) Ver.2006-06-13 -3- NJU7254 www..com TYPICAL APPLICATION 1 In case that ON/OFF Control is not required: VIN CIN= 0.1F VIN VOUT1 VOUT1 CO1=1.0F (*7) NJU7254 CONTROL1 VOUT2 VOUT2 CO2=1.0F (*7) CONTROL2 GND (*7) Vo2.0V version : CO=2.2F Connect control terminal to VIN terminal. 2 In use of ON/OFF Control VIN CIN= 0.1F VIN VOUT1 VOUT1 CO1=1.0F (*7) NJU7254 CONTROL1 VOUT2 VOUT2 CO2=1.0F (*7) CONTROL2 GND (*7) Vo2.0V version : CO=2.2F State of control terminal: "H" output is enabled. "L" or "open" output is disabled. -4- Ver.2006-06-13 NJU7254 www..com TYPICAL CHARACTERISTICS NJU7254-3.0V_ Output Voltage vs. Input Voltage 3.2 @:Ta=25 C Co=1.0F(Ceramic) 3.1 3 o 4 o NJU7254-3.0V Output Voltage vs. Output Current @:Ta=25 C VIN=4.0V Co=1.0F(Ceramic) 3.5 Output Voltage : Vo (V) Io=0A 3 Output Voltage : Vo (V) 3.2 3.3 3.4 2.5 2 2.9 Io=30mA 1.5 1 2.8 Io=100mA 2.7 2.7 2.8 2.9 3 3.1 0.5 0 0 50 100 150 200 Input Voltage : VIN(V) Output Current : Io(mA) NJU7254-3.0V Ground Pin Current v.s. Output Current 100 @:Ta=25 C VIN=4.0V Co=1.0F(Ceramic) 80 o 0.4 NJU7254-3.0V Dropout Voltage vs. Output Current @:Ta=25oC Co=1.0F(Ceramic) 0.35 Ground Pin Current : GND ( A) I 0.3 Dropout Voltage:dVI-O (V) 60 0.25 0.2 40 0.15 0.1 20 0.05 0 0 20 40 60 80 100 0 0 20 40 60 80 100 Output Current : IO(mA) Output Current:Io(mA) 0 NJU7254-3.0V Load Regulation vs. Output Current @:Ta=25 C VIN=4.0V Co=1.0F(Ceramic) o 300 NJU7254-3.0V Peak Output Current vs. Input Voltage @:Ta=25 C Co=1.0 F(Ceramic) o 250 -8 Load Regulation : dVo/dIo (mV) Peak Output Current : Io MAX(mA) 0 20 40 60 80 100 200 -16 150 -24 100 -32 50 -40 0 3 4 5 6 7 8 Output Current : Io(mA) Input Voltage : VIN(V) Ver.2006-06-13 -5- NJU7254 www..com TYPICAL CHARACTERISTICS NJU7254-3.0V Quiescent Current v.s. Input Voltage 60 @:Ta=25 C Output is open. Co=1.0F(Ceramic) including Icont o NJU7254-3.0V Output Noise Voltage vs. Output Current 140 @:Ta=25oC VIN=4.0V LPF:80kHz Co=1.0F(Ceramic) 50 CH1,CH2=ON CH1 or CH2=ON 120 Output Noise Voltage : Vn ( Vrms) Quiescent Current : I ( A) Q 100 40 80 30 60 20 40 10 20 0 0 1 2 3 4 5 6 7 8 0 0.001 0.01 0.1 1 10 100 Input Voltage : VIN(V) Output Current : Io(mA) NJU7254-3.0V Ripple Rejection Ratio v.s. Frequency 100 NJU7254-3.0V Ripple Rejection vs. Output Current 80 f=1kHz 70 Ripple Rejection Ratio : RR (dB) 80 Ripple Rejection : RR (dB) Io=0mA 60 60 50 40 f=10kHz 30 40 Io=10mA 20 @:Ta=25 C VIN=4.0V ein=200mVrms Co=1.0 F(Ceramic) o Io=30mA 20 10 @:Ta=25 oC VIN=4.0V ein=200mVrms Co=1.0F(Ceramic) 0 10 100 1000 10 4 10 5 0 0.001 0.01 0.1 1 10 100 Frequency : f (Hz) Output Current : Io(A) NJU7254_3.0V Equivalent Serise Resistance vs. Output Current 100 @:Ta=25 C VIN=4.0V Co=1.0F(Ceramic) CIN=0.1F 10 o Equivalent Serise Resistance : ESR ( ) 1 STABLE REGION 0.1 0.02 0.001 0.01 0.1 1 10 100 Output Current : Io(mA) -6- Ver.2006-06-13 NJU7254 www..com TYPICAL CHARACTERISTICS 0.3 NJU7254-3.0V Dropout Voltage v.s. Temperature @:Io=60mA Co=1.0F(Ceramic) CIN=0.1F NJU7254-3.0V Control Voltage (OFF) v.s. Tem perature 2 0.25 0.2 0.15 Control Voltage : V CONT(OFF) (V) 1.5 Dropout Voltage:dV (V) I-O 1 0.1 0.5 @:VIN=4.0V Co=1.0F(Ceramic) CIN=0.1F 0 0.05 0 -50 0 50 100 o 150 -50 0 50 100 o 150 Temperature : Ta ( C) Temperature : Ta ( C) 3.1 NJU7254-3.0V Output Voltage v.s. Tem perature @:VIN=4.0V Io=30mA Co=1.0F(Ceramic) CIN=0.1F 300 NJU7254-3.0V Peak Output Current vs. Temperature 250 3.05 Peak Output Current : Io MAX(mA) Output Voltage Vo (V) 200 3 150 100 2.95 50 @:VIN=4.0V Co=1.0F(Ceramic) CIN=0.1F -50 0 50 100 o 2.9 -50 0 50 100 o 0 150 150 Temperature Ta ( C) Temperature Ta ( C) NJU7254-3.0V Quiescent Current v.s. Temperature 60 CH1,CH2=ON CH1 or CH2=ON 0.1 NJU7254-3.0V Line Regulation v.s. Temperature @:dVIN=4.0-9.0V Io=30mA Co=1F(Ceramic) CIN=0.1F 50 Line Regulation : dVo/dIo (%/V) 150 0.05 Quiescent Current : I ( A) Q 40 30 0 20 -0.05 10 @:VIN=4.0V Output is open. Co=1.0F(Ceramic) CIN=0.1F -50 0 50 100 o 0 -0.1 -50 0 50 100 o 150 Temperature : Ta ( C) Temperature : Ta ( C) Ver.2006-06-13 -7- NJU7254 www..com TYPICAL CHARACTERISTICS NJU7254-3.0V Load Regulation v.s. Temperature 0.01 @:VIN=4.0V Io=0-100mA Co=1F(Ceramic) CIN=0.1F 4 NJU7254-3.0V Output Voltage v.s. Tem perature 3.5 Load Regulation : dVo/dIo (%/mA) 0.008 3 Output Voltage Vo (V) 0.006 2.5 2 0.004 1.5 1 0.002 0.5 @:VIN=4.0V Io=30mA Co=1.0F(Ceramic) 0 -50 0 50 100 o 0 150 -50 0 50 100 o 150 200 Temperature : Ta ( C) Temperature Ta ( C) NJU7254-3.0V Short Circuit Current v.s. Temperature 60 @:VIN=4.0V Output is short to ground. Co=1F(Ceramic) CIN=0.1F 50 Short Circuit Current : ISC (mA) 40 30 20 10 0 -50 0 50 100 o 150 Temperature : Ta ( C) -8- Ver.2006-06-13 NJU7254 www..com TYPICAL CHARACTERISTICS NJU7254_3.0V ON/OFF Transient Response 7 6 5 4 Output Voltage 3 2 1 0 -1 0 1 2 3 4 5 @:Ta=25 C VIN=4.0V Co=1.0F(Ceramic) Io=30mA o NJU7254_3.0V Load Transient Response 10 3.5 3.4 3.3 150 100 50 @:Ta=25 C VIN=4.0V Co=1.0F(Ceramic) o Control Voltage 5 0 -5 -10 -15 -20 -25 -30 Output Current Output Voltage : Vo [V] Output Voltage : Vo [V] 3.2 3.1 3 Output Voltage 2.9 2.8 2.7 0 40 80 0 -50 -100 -150 -200 -250 200 120 160 Time : t [mS] Time : t [ S] NJU7254_3.0V Line Transient Response 3.5 6 3.4 5 3.3 4 Input Voltage Output Voltage : Vo [V] 3.2 3 3.1 2 3 Output Voltage 2.9 @:Ta=25 C VIN=4.0V Co=1.0F(Ceramic) Io=30mA o 1 0 2.8 -1 2.7 0 40 80 120 160 -2 200 Time : t [ S] Input Voltage : VIN [V] [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.2006-06-13 -9- Output Current : Io [mA] Control Voltage : Vo [V] |
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