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| NJU7757/58 LOW DROPOUT VOLTAGE REGULATOR GENERAL DISCRIPTION NJU7757/58 is a low dropout voltage regulator with ON/OFF control. Advanced CMOS technology achieves low quiescent current. SC-82AB package and 0.1uF small output capacitor make the NJU7757/58 suitable for space conscious applications. NJU7758 features shunt switch which improves turn off response of output voltage when ON/OFF control is used. FEATURES Low quiescent Current Iq=20A typ.(IO=0mA) Output capacitor with 0.1uF ceramic capacitor Output Current IO(max.)=100mA High Precision Output VO1.0% Low Dropout Voltage 0.15V typ. (IO=60mA, VO=3V version) With ON/OFF Control (Active High) With Output Shunt Switch Only NJU7758 Internal Short Circuit Current Limit CMOS Technology Package Outline SC-82AB PIN CONFIGURATION 4 3 PACKAGE OUTLINE NJU7757/58F4 1 2 PIN FUNCTION 1.CONTROL 2.GND 3. VOUT 4. VIN NJU7757/58F4 EQUIVALENT CIRCUIT VIN VOUT VIN VOUT CONTROL Output Control CONTROL Output Control Vref Current Limit Vref Current Limit GND GND NJU7757 NJU7758 Ver.2005-01-05 -1- NJU7757/58 OUTPUT VOLTAGE RANK LIST DEVICE NAME VOUT NJU775*F4-21 2.1V NJU775*F4-25 2.5V NJU775*F4-03 3.0V NJU775*F4-33 3.3V NJU775*F4-05 5.0V ABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYMBOL RATINGS UNIT Input Voltage VIN +10 V Control Voltage VCONT +10(*1) V Power Dissipation PD 250(*2) mW Operating Temperature Topr -40 +85 C Storage Temperature Tstg -40 +125 C Output Sink Current 10 mA IO at OFF-state(*3) (*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 based on EIA/JEDEC. (114.3x76.2x1.6mm: 2Layers) (*3): This maximum rating is applied to NJU7758. ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=0.1F, Co=1.0F, Ta=25C) PARAMETER Output Voltage Input Voltage Quiescent Current Quiescent Current at Control OFF Output Current Short Circuit Limit Line Regulation Load Regulation SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Vo VIN IQ IQ(OFF) Io ILIM Vo/VIN Vo/Io VI-O Io=30mA Io=0mA, VCONT=VIN, Include ICONT VCONT=0V Vo - 0.3V Vo=0V VIN=Vo+1V Vo+6V(Vo<3.0V) VIN=Vo+1V 9.0V(Vo3.0V), Io=30mA Io=0 100mA 2.1VVo2.4V 2.5VVo2.7V Io=60mA 2.8VVo3.3V 3.4VVo5.0V ein=200mVrms,f=1kHz,Io=10mA, Vo=3V Version Ta=0 85C, Io=10mA f=10Hz 80kHz, Io=10mA, Vo=3.0V Version - 1.0% 100 2 1.6 - 20 0.1 40 0.20 0.18 0.15 0.12 65 100 75 5 150 +1.0% 6 40 1 0.20 0.03 0.27 0.25 0.22 0.19 10 0.3 - V V A A mA mA %/V %/mA V V V V dB ppm/C Vrms M V V Dropout Voltage Ripple Rejection Average Temperature Coefficient of Output Voltage Output Noise Voltage Pull-down Resistance Control Voltage for ON-State Control Voltage for OFF-State Pull-down Resistance at OFF-state(*4) RR Vo/Ta VNO RCONT VCONT(ON) VCONT(OFF) RO(OFF) VCONT=0V, Vo=3.0V Version (*4) This electrical characteristics is applied to NJU7758. 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.2005-01-05 NJU7757/58 TEST CIRCUIT A VIN IIN VIN VOUT IOUT V VOUT 1.0F 0.1F NJU7757/58 (ceramic) A V VCONT ICONT CONTROL GND TYPICAL APPLICATION 1 In case that ON/OFF Control is not required: VIN VIN CIN 0.1F VOUT VOUT CO 1.0F NJU7757/58 CONTROL GND Connect control terminal to VIN terminal. 2 In use of ON/OFF Control VIN VIN CIN 0.1F VOUT VOUT CO 1.0F NJU7757/58 CONTROL GND State of control terminal: "H" output is enabled. "L" or "open" output is disabled. Ver.2005-01-05 -3- NJU7757/58 POWER DISSIPATION vs. AMBIENT TEMPERATURE NJU7757/58F4 Power Dissipation (Topr=-40+85,Tj=125) 500 Power Dissipation PD(mW) 400 300 On Board(114.3x76.2x1.6mm, FR-4) 200 100 0 -50 -25 0 25 50 75 100 Ambient Temperature Ta() [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. -4- Ver.2005-01-05 |
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