RP114x SERIES 300 mA LDO REGULATOR No.EA-236-190130 OUTLINE The RP114x is a CMOS-based voltage regulator IC with high output voltage accuracy, low supply current, low dropout, and high ripple rejection. This IC consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, a short current limit circuit, a chip enable circuit, and so on. The RP114x features a minimum input voltage from 1.4V and the output voltage, which can be set from 0.8V to 3.6V (in 0.1V step). The output voltage of this IC is internally fixed. This IC perform with low dropout voltage due to built-in transistor with low ON resistance. Low supply current and a chip enable function prolong the battery life of each system. The ripple rejection, line transient response and load transient response of the RP114x is excellent, thus this IC is very suitable for the power supply for hand-held communication equipment. Since the packages for this IC are DFN(PLP)1010-4DFN(PLP)1010-4BSC-88ASOT-23-5, therefore high density mounting of the IC on boards is possible. FEATURES Supply Current ................................................................ Typ. 50A Standby Current ............................................................. Typ. 0.1A Input Voltage Range ....................................................... 1.4V to 5.25V (1) Output Voltage Range ................................................. 0.8V to 3.6V (0.1V steps) Output Voltage Accuracy ................................................ 1.0% (VSET>2.0V, Ta = 25C) Temperature-Drift Coefficient of Output Voltage ............. Typ. 80ppm/C Dropout Voltage .............................................................. Typ. 0.25V (IOUT = 300mA, VSET=2.8V) Ripple Rejection ............................................................. Typ. 75dB (f=1kHz) Line Regulation ............................................................... Typ. 0.02%/V Packages DFN(PLP)1010-4DFN(PLP)1010-4B SC-88ASOT-23-5 Built-in Fold Back Protection Circuit ............................... Typ. 60mA (Current at short mode) Ceramic capacitors are recommended to be used with this IC ...... 1.0F or more APPLICATIONS Power source for portable communication equipment. Power source for electrical appliances such as cameras, VCRs and camcorders. Power source for battery-powered equipment. (1) For other voltages, please refer to Product-specific Electrical Characteristics. 1 RP114x No.EA-236-190130 SELECTION GUIDE (1) The set output voltage, the auto discharge function , and the package type for the ICs are user-selectable options. Product Name Package Quantity per Reel Pb Free Halogen Free DFN(PLP)1010-4 10,000 pcs Yes Yes RP114Kxx1 (y)-TR RP114Kxx1 (y)-TRB DFN(PLP)1010-4B 10,000 pcs Yes Yes RP114Qxx2 (y)-TR-FE SC-88A 3,000 pcs Yes Yes SOT-23-5 3,000 pcs Yes Yes RP114Nxx1 (y)-TR-FE xx : Specify the set output voltage within the range of 0.8 V (08) to 3.6 V (36) in 0.1 V step. (y): If the output voltage includes the 3rd digit, indicate the digit of 0.01V. Ex. If the output voltage is 1.25V, RP114K1215-TR If the output voltage is 1.85V, RP114K1815-TR : Specify a combination of the CE pin polarity and the auto-discharge function. (B) H Active, without Auto-Discharge function (D) H Active, with Auto-Discharge function BLOCK DIAGRAMS VDD VDD VOUT VOUT Vref Vref Current Limit Current Limit CE CE GND GND RP114xxxxB Block Diagram RP114xxxxD Block Diagram (1) Auto-Discharge function quickly lowers the output voltage to 0V by releasing the electrical charge in the external capacitor when the chip enable signal is switched from the active mode to the standby mode. 2