NJM2807 Low Dropout Voltage Regulator with Reset GENERAL DISCRIPTION The NJM2807 is a low dropout voltage regulator with reset function. It provides up to 500mA of logic supply, and the reset function monitors input voltage of the regulator with 1% accuracy. It is suitable for local power supply and reset for small micro controller and other logic chips. FEATURES z Output Voltage Accuracy Vo ±1.0% z Reset Voltage Accuracy VRT ±1.0% z Adjust reset delay time with external capacitor. z Ripple Rejection 75dB typ. (f=1kHz) z Output Voltage Monitor type z Open Collector Output z Internal Short Circuit Current Limit z Internal Thermal Overload Protection z Bipolar Technology z Package Outline TO-252-5 PACKAGE OUTLINE NJM2807DL2 NJM2807DL3 PIN CONFIGURATION 3 3 1.VOR 2.VIN 3.GND 4.VOUT 5.Cd 123 45 123 45 NJM2806DL2 NJM2806DL3 OUTPUT VOLTAGE/ DETECTION VOLTAGE Device Name Output Voltage Detection Voltage NJM2807DL*-0543 5.0V 4.3V EQUIVALENT CIRCUIT VIN VOUT VOR Bandgap Reference Thermal Protection GND Cd Ver.2004-12-24 -1- NJM2807 ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Power Dissipation PD RATINGS Operating Temperature Topr +14 8 (Tc=25°C) 0.8(Ta≤25°C) −40∼+85 Storage Temperature Tstg −40∼+125 (Ta=25°C) UNIT V W °C °C ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=0.33µF, Co=1.0µF (Co=2.2µF: Vo≤2.4V) Ta=25°C) PARAMETER SYMBOL TEST CONDITION Quiescent Current VIN=Vo+2V, Io=0mA IQ MIN. TYP. MAX. UNIT − 330 430 µA −1.0% 500 − 650 +1.0% V VIN=Vo+1V∼Vo+6.0V, Io=30mA − − − 0.10 %/V Io=0∼500mA − 0.03 %/mA Io=300mA − − 0.18 0.28 V ein=200mVrms, f=1kHz, Io=10mA, Vo=3.0V Version − 75 − dB Ta=0∼85°C, Io=10mA − ±50 − ppm/°C VNO f=10Hz∼80kHz, Io=10mA, Vo=3.0V Version − 50 − µVrms VIN=H→L Reset Output Delay Time VRT VRTH RORL IORH IORL td Operation Voltage Limit VOPL VORL=0.4V Regulator Block Dropout Voltage Vo Io ∆Vo/∆VIN ∆Vo/∆Io ∆VI_O Ripple Rejection RR Output Voltage Output Current Line Regulation Load Regulation Output Voltage Temperature Coefficient Output Noise Voltage ∆Vo/∆T Io=30mA Vo-0.3V mA Reset Block Voltage Detection Hysteresis Voltage Low Level Output Voltage Output Leak Current On time Output Current VIN=H→L→H VIN=VRT-0.5V, RL=100kΩ VIN= VRT+0.5V VIN=VRT-0.5V, RL=0Ω VIN=(VRT-0.5V)→ (VRT+0.5V), Cd=0.1µF +1.0% −1.0% − VRT ×3% VRT ×5% VRT ×8% 100 300 − 0.1 − − 5 − − 9 10 11 − 0.9 − V mV mV µA mA ms V 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.2004-12-24 NJM2807 TIMING CHART VIN[V] VO t VO[V] VO VRTH VRT t VOR[V] VO td td td t ∗ When the pull-up of the VOR is carried out to VIN through resistance. Ver.2004-12-24 -3- NJM2807 TEST CIRCUIT IQ VIN VO IOR NJM2807 RL 0.33µF Cd VIN V VOR 1.0µF *1 IOUT (Ceramic) GND V 0.1µF VOUT VOR *1 Vo≤2.4V: Co=2.2µF (Ceramic) TYPICAL APPLICATIONS VIN VIN VO NJM2807 100kΩ 0.33µF Cd VOUT VOR 1.0µF *2 VOR GND 0.1µF *2 Vo≤2.4V: Co=2.2µF -4- Ver.2004-12-24 NJM2807 [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.2004-12-24 -5-