NJU7211 Series C-MOS 3-TERMINAL NEGATIVE VOLTAGE REGULATOR ■ GENERAL DESCRIPTION The NJU7211 series is a C-MOS 3-terminal negative voltage regulator which contains internal precision voltage reference, error amplifier, control transistor and output voltage setting resistor. The regulation voltage is fixed by internal circuits and the following line-up of different output voltage versions are available. The NJU7211 series is suitable for battery operated items and battery back-up systems because of low operating current and low dropout voltage. ■ PACKAGE OUTLINE ■ FEATURES • Low Operating Current (19μA typ.) • Wide Operating Voltage Range • Low Dropout Voltage (ΔVIO < 0.6V -3.0V output, IOUT = 20mA) (ΔVIO < 0.6V -5.0V output, IOUT = 40mA) • Small Temperature Coefficient of Output Voltage • Package Outline ( SOT-89) • C-MOS Technology ■ TERMINAL DESCRIPTION No. Description 1 Output 2 GND 3 Input 3 12 NJU7221U (SOT-89) ■ OUTPUT VOLTAGE LINE-UP Output Voltage SOT-89 Type -2.0V NJU7211U20 -3.0V NJU7211U30 -4.0V NJU7211U40 -5.0V NJU7211U50 ■ EQUIVALENT CIRCUIT GND 2 VREF + VIN 3 Ver.2007-02-14 1 VOUT -1- NJU7211 Series (Ta = 25ºC) ■ ABSOLUTE MAXIMUM RATINGS PARAMETER Input Voltage SYMBOL RATINGS UNIT VIN -14 V Output Voltage VOUT GND+0.3 to VIN-0.3 V Output Current IOUT 100 mA Power Dissipation PD 300 (SOT-89) mW Operating Temperature Topr -25 to + 75 ºC Storage Temperature Tstg -40 to +125 ºC Soldering Temperature / Time Tsold 260ºC/10 sec - ■ ELECTRICAL CHARACTERISTICS -2.0V Version PARAMETER （CIN = Co = 0.1μF, Ta = 25°C) CONDITION MIN. TYP. MAX. UNIT VOUT ΔVIO VIN IQ VIN = - 4.0V, IOUT = 10mA IOUT = 20mA - 2.10 - 12 - - 2.00 0.2 19 - 1.90 0.6 30 V V V μA Load Regulation ΔVOUT / ΔIOUT VIN = - 4.0V, IOUT = 1～20mA - - 120 mV Line Regulation ΔVOUT / (ΔVIN･VOUT) VIN = - 3.0 ～ - 12V - 0.1 - %/V Output Voltage Dropout Voltage Input Voltage Operating Current SYMBOL VIN = - 4.0V （CIN = Co = 0.1μF, Ta = 25°C) -3.0V Version PARAMETER CONDITION MIN. TYP. MAX. UNIT VOUT ΔVIO VIN IQ VIN = - 5.0V, IOUT = 10mA IOUT = 20mA - 3.15 - 12 - - 3.00 0.2 19 - 2.85 0.6 30 V V V μA Load Regulation ΔVOUT / ΔIOUT VIN = - 5.0V, IOUT = 1～20mA - 80 120 mV Line Regulation ΔVOUT / (ΔVIN･VOUT) VIN = - 4.0 ～ - 12V - 0.1 - %/V Output Voltage Dropout Voltage Input Voltage Operating Current SYMBOL VIN = - 5.0V （CIN = Co = 0.1μF, Ta = 25°C) -4.0V Version PARAMETER CONDITION MIN. TYP. MAX. UNIT VOUT ΔVIO VIN IQ VIN = - 6.0V, IOUT = 30mA IOUT = 40mA - 5.25 - 12 - - 5.00 0.3 19 - 4.75 0.6 30 V V V μA Load Regulation ΔVOUT / ΔIOUT VIN = - 6.0V, IOUT = 1～40mA - - 120 mV Line Regulation ΔVOUT / (ΔVIN･VOUT) VIN = - 5.0 ～ - 12V - 0.1 - %/V Output Voltage Dropout Voltage Input Voltage Operating Current SYMBOL VIN = - 6.0V （CIN = Co = 0.1μF, Ta = 25°C) -5.0V Version PARAMETER CONDITION MIN. TYP. MAX. UNIT VOUT ΔVIO VIN IQ VIN = - 7.0V, IOUT = 30mA IOUT = 40mA - 5.25 - 12 - - 5.00 0.3 19 - 4.75 0.6 30 V V V μA Load Regulation ΔVOUT / ΔIOUT VIN = - 7.0V, IOUT = 1～40mA - 80 120 mV Line Regulation ΔVOUT / (ΔVIN･VOUT) VIN = - 6.0 ～ - 12V - 0.1 - %/V Output Voltage Dropout Voltage Input Voltage Operating Current -2- SYMBOL VIN = - 7.0V Ver.2007-02-14 NJU7211 Series ■ MEASUREMENT CIRCUIT VIN NJU7211 VOUT GND DC CIN V CO IOUT [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.2007-02-14 -3-