R1191x SERIES 300mA LDO REGULATOR with the Reverse Current Protection NO.EA-229-111026 OUTLINE R1191x Series are a low supply current voltage regulator with high output voltage accuracy. The maximum operating voltage is 16V. These ICs can switch to the fast mode and the low power mode by the low power / fast mode changer pin (ECO pin) without changing the output voltage value. Each of these ICs consists of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, a short current limit circuit, a thermal shutdown circuit and a chip enable circuit. Moreover, the R1191x Series has the reverse current protection function, which protects the reverse current flow into VDD pin when the output pin voltage becomes higher than the VDD pin voltage. Thus it is suitable for the back-up circuit. Since the packages for these ICs are SOT-89-5, SOT-23-5 and DFN1616-6, therefore high density mounting of the ICs on boards is possible. FEATURES Supply Current ..................................................... Typ. 50A (Fast Mode), Typ. 6.0A (Low Power Mode) Standby Mode ...................................................... Typ. 0.3A Reverse Current................................................... Max. 0.1A Output Current ..................................................... Min. 300mA Input Voltage Range ............................................ 3.5V to 16.0V Output Voltage Range.......................................... 2.0V to 15.0V (0.1V steps) (For other voltages, please refer to MARK INFORMATIONS.) Output Voltage Accuracy...................................... 1.5% (Fast Mode) 2.5% (Low Power Mode) Temperature-Drift Coefficient of Output Voltage .. Typ. 80ppm/C Dropout Voltage ................................................... Typ. 0.55V (Fast Mode, IOUT=300mA ,VOUT=5.0V) Typ. 0.70V (Low Power Mode, IOUT=300mA,VOUT=5.0V) Ripple Rejection................................................... Typ. 60dB (f=1kHz,VOUT=5.0V, Fast Mode) Line Regulation .................................................... Typ. 0.02%/V (Fast Mode) Packages ............................................................DFN1616-6, SOT-23-5, SOT-89-5 Built-in fold-back protection circuit ....................... Typ. 50mA (Current at short mode) Built-in Thermal Shutdown Circuit........................ Shutdown Temperature at 150C Ceramic capacitors are recommended to be used with this IC CIN=2.2F or more, COUT=4.7F or more APPLICATIONS Power source for digital home appliances Power source for audio visual equipment 1 R1191x BLOCK DIAGRAM R1191xxxxB R1191xxxxD ECO ECO Thermal Shutdown Thermal Shutdown VDD VOUT VDD VOUT Vref Vref Peak Peak Short Short Current Current Protection Protection Protection Protection Reverse Reverse Detector Detector CE GND CE GND SELECTION GUIDE The output voltage, auto-discharge function, and package, for the ICs can be selected at the users request. Product Name Package Quantity per Reel Pb Free Halogen Free R1191Lxxx-TR DFN1616-6 5,000 pcs Yes Yes R1191Nxxx-TR-FE SOT-23-5 3,000 pcs Yes Yes R1191Hxxx-T1-FE SOT-89-5 1,000 pcs Yes Yes xxx : The output voltage can be designated in the range from 2.0V(020) to 15.0V(150) in 0.1V steps. (For other voltages, please refer to MARK INFORMATIONS.) : The auto discharge function at off state are options as follows. (B) without auto discharge function at off state. (D) with auto discharge function at off state. 2