NJM2806 Low Dropout Voltage Regulator with Reset ! GENERAL DISCRIPTION The NJM2806 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 " Output Voltage Accuracy Vo ±1.0% " Reset Voltage Accuracy VRT ±1.0% " Reset Hold Time td = 10mS±1.0mS " Ripple Rejection 75dB typ. (f=1kHz) " Quiescent Current IQ=330µA (typ.) " Input Voltage Monitor type " Open Collector Output " Internal Short Circuit Current Limit " Internal Thermal Overload Protection " Bipolar Technology " Package Outline TO-252-5 ! PACKAGE OUTLINE NJM2806DL2 ! PIN CONFIGURATION 3 12345 1.VOR 2.VIN 3.GND 4.VOUT 5.Cd NJM2806DL2 ! OUTPUT VOLTAGE/ DETECTION VOLTAGE Device Name Output Voltage Detection Voltage NJM2806DL2-2528 2.5V 2.8V NJM2806DL2-3342 3.3V 4.2V ! EQUIVALENT CIRCUIT VIN VOUT Thermal Protection VOR Bandgap Reference GND Cd Ver.2004-01-19 -1- NJM2806 ! 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=0.1µF, Co=2.2µF (Co=4.7µF: Vo≤2.6V) Ta=25°C) PARAMETER SYMBOL TEST CONDITION Quiescent Current VIN=Vo+2V, Io=0mA IQ MIN. TYP. MAX. UNIT − 330 430 µA Io=30mA -1.0% +1.0% V Vo-0.3V − 0.10 %/V Regulator Block 500 − 650 VIN=Vo+1V∼Vo+6.0V, Io=30mA − − 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∼100kHz, Io=10mA, Vo=3.0V Version − 45 − µVrms VIN=H→L Reset Output Delay Time VRT VRTH RORL IORH IORL td Operation Voltage Limit VOPL 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 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 -1.0% +1.0% − VRT×3 VRT×5 VRT×8 100 300 − 0.1 − − V mV mV µA mA 9 − 10 − 11 mS − 0.9 − V VIN=VRT-0.5V, RL=0Ω 5 VIN=(VRT-0.5V)→ (VRT+0.5V), Cd=0.1µF VORL=0.4V (*note 1) 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.2004-01-19 NJM2806 ! TIMING CHART VIN[V] V RTH V RT VO t VO[V] VO t VOR[V] td td ∗ VOR is the case where a pull-up is carried out to VIN through resistance. Ver.2004-01-19 td t -3- NJM2806 ! TEST CIRCUIT IQ VIN VO IOR NJM2806 RL 0.1µF Cd VIN V VOR 2.2µF GND V 0.1µF IOUT VOUT VOR * Co=4.7µF: Vo≤2.6V ! TYPICAL APPLICATIONS VIN VIN VO NJM2806 100kΩ 0.1µF Cd VOUT VOR 2.2µF VOR GND 0.1µF -4- Ver.2004-01-19 NJM2806 [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.2004-01-19 -5-