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NJU7741 Dataheets PDF



Part Number NJU7741
Manufacturers New Japan Radio
Logo New Japan Radio
Description LOW DROPOUT VOLTAGE REGULATOR
Datasheet NJU7741 DatasheetNJU7741 Datasheet (PDF)

NJU7741/44 LOW DROPOUT VOLTAGE REGULATOR GENERAL DISCRIPTION NJU7741/44 is a low dropout voltage regulator with ON/OFF control and Output shunt switch. Advanced CMOS technology achieves high ripple rejection and ultra low quiescent current. It is suitable for reset small micro controller and other logic chips. NJU7744 features shunt switch which improves turn off response of output voltage when ON/OFF control is used. PACKAGE OUTLINE NJU7741/44F FEATURES Ultra Low quiescent Current Iq=1.5 A.

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NJU7741/44 LOW DROPOUT VOLTAGE REGULATOR GENERAL DISCRIPTION NJU7741/44 is a low dropout voltage regulator with ON/OFF control and Output shunt switch. Advanced CMOS technology achieves high ripple rejection and ultra low quiescent current. It is suitable for reset small micro controller and other logic chips. NJU7744 features shunt switch which improves turn off response of output voltage when ON/OFF control is used. PACKAGE OUTLINE NJU7741/44F FEATURES Ultra Low quiescent Current Iq=1.5 A typ.(IO=0mA) Output capacitor with 0.1uF ceramic capacitor Output Current High Precision Output Low Dropout Voltage With ON/OFF Control IO(max.)=100mA VO 1.0% 0.17V typ. (IO=60mA, VO=3V version) (Active High) With Output Shunt Switch Only NJU7744 Internal Short Circuit Current Limit CMOS Technology Package Outline SOT-23-5 PIN CONFIGURATION CONTROL 1 GND 2 NC 3 5 VIN 4 VOUT NJU7741/44F BLOCK DIAGRAM VIN CONTROL Output Control VOUT VIN CONTROL Output Control VOUT GND Vref Current Limit NJU7741 GND Vref Current Limit NJU7744 Ver.2016-02-17 -1- NJU7741/44 OUTPUT VOLTAGE RANK LIST DEVICE NAME VOUT DEVICE NAME NJU774*F15 1.5V NJU774*F28 NJU774*F18 1.8V NJU774*F29 NJU774*F19 1.9V NJU774*F03 NJU774*F02 2.0V NJU774*F31 NJU774*F25 2.5V NJU774*F33 NJU774*F27 2.7V NJU774*F37 VOUT 2.8V 2.9V 3.0V 3.1V 3.3V 3.7V DEVICE NAME NJU774*F04 NJU774*F45 NJU774*F05 NJU774*F06 VOUT 4.0V 4.5V 5.0V 6.0V ABSOLUTE MAXIMUM RATINGS (Ta=25 C) PARAMETER Input Voltage Control Voltage Power Dissipation Operating Temperature Storage Temperature Output Sink Current at OFF-state(*4) SYMBOL VIN VCONT PD Topr Tstg IO RATINGS +10 +10(*1) SOT-23-5 380(*2) 510(*3) −40 +85 −40 +125 10 UNIT V V mW C C mA (*1) : When input voltage is less than +10V, the absolute maximum control voltage is equal to the input voltage. (*2) : Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 2Layers) (*3) : Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 4Layers), internal Cu area: 74.2x74.2mm (*4) : This maximum rating is applied to NJU7744. ELECTRICAL CHARACTERISTICS (VIN=VO+1V, CIN=0.1 F, CO=0.1 F, Ta=25 C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Output Voltage VO IO=30mA −1.0% – +1.0% V Input Voltage Quiescent Current Quiescent Current at Control OFF VIN IQ IQ(OFF) IO =0mA, VCONT=VIN,Except ICONT VCONT=0V ––9V – 1.5 3.5 A – 0.1 1 A Output Current Short Circuit Limit Line Regulation Load Regulation IO ILIM VO / VIN VO / VO VO−0.3V VO=0V VIN= VO+1V VO+6.0V(VO<3.0V) VIN= VO+1V 9.0V(VO≥3.0V), IO=30mA Io=0 100mA Io=40mA 1.5V≤VO≤2.0V 2.0V≤VO≤2.4V 100 – – 25 – mA – mA – – 0.30 %/V – – 0.15 %/mA – 0.19 0.60 V – 0.19 0.29 V Dropout Voltage VI-O Io=60mA 2.5V≤VO≤2.7V 2.8V≤VO≤3.3V – 0.18 0.27 V – 0.17 0.26 V Average Temperature Coefficient of Output Voltage VO / Ta 3.4V≤VO≤5.0V 5.1V≤VO≤6.0V Ta=0 85 C, IO=10mA – 0.16 0.24 V – 0.15 0.22 V – 100 – ppm/ C Pull-down Resistance Control Voltage for ON-State RCONT VCONT(ON) 2 5 10 M 1.6 – VIN V Control Voltage for OFF-State Pull-down Resistance at OFF-state(note 5) VCONT(OFF) RO(OFF) VCONT=0V (VO=3.0V Version) 0 – 0.3 V – 300 – (*5) This electrical characteristics is applied to NJU7744. The above specification is a common specification for all voltages. Therefore, it may be different from the individual specification for a specific output Voltage. -2- Ver.2016-02-17 NJU7741/44 THERMAL CHARACTERISTICS PARAMETER Junction-to-ambient thermal resistance Junction-to-Top of package characterization parameter SYMBOL ja jt VALUE 260(*6) 195(*7) 70(*6) 60(*7) UNIT C/W C/W (*6) : Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 2Layers) (*7) : Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 4Layers), internal Cu area: 74.2x74.2mm POWER DISSIPATION vs. AMBIENT TEMPERATURE NJU7741/44F Power Dissipation (Topr=-40~+85℃,Tj=125℃) 600 Power Dissipation PD(mW) 500 on 4 layers board 400 300 on 2 layers board 200 100 0 -50 -25 0 25 50 Ambient Temperature Ta(℃) 75 100 TEST CIRCUIT A IIN VIN VOUT VIN 0.1 F NJU7741/44 A ICONT CONTROL V VCONT GND IOUT V VOUT 0.1 F (Ceramic) Ver.2016-02-17 -3- NJU7741/44 TYPICAL APPLICATION In case that ON/OFF Control is not required: VIN VIN VOUT CIN 0.1 F NJU7741/44 VOUT CO 0.1 F CONTROL GND Connect control terminal to VIN pin. In use of ON/OFF Control VIN CIN 0.1 F VIN VOUT NJU7741/44 VOUT CO 0.1 F CONTROL GND State of control pin: ● “H” output is enabled. ● “L” or “open” output is disabled. *Transient response characteristic of Output Voltage In general, overshoot or undershoot of output voltage may occur due to the transient response characteristic of an internal error amplifier. Especially, low current consumption regulator may have overshoot or undershoot due .


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