RP202x SERIES Low Power / Fast Mode Alternative 200mA LDO Regulator NO.EA-279-170710 OUTLINE The RP202x is voltage regulator IC with high output voltage accuracy, low dropout voltage and low supply current. This IC performs with the chip enable function and realize a standby mode with low supply current. To prevent the destruction by over current, the current limit circuit is included. The RP202x has 3-mode. One is standby mode with CE pin. The other two are the fast response mode (Fast Mode) and the low power mode, and switch over automatically according to the load current of the LDO. Supply current of IC itself at light load is automatically reduced. The output voltage is maintained between Fast Mode and ECO Mode. The RP202x consists of a voltage reference unit, an error amplifier, a resister net for voltage setting, and a current limit circuit. Since the packages are SOT-23-5, SC-88A, and DFN(PLP)1010-4, high density mounting of the IC on boards is possible. FEATURES Input Voltage Range 1.4V to 5.25V Output Voltage Range 0.8V to 4.0V (0.1V steps) Supply Current (IOUT=0mA) Typ. 2.5A Supply Current (IOUT=10mA) Typ. 50A Supply Current (Standby Mode) Typ. 0.1A Dropout Voltage Typ. 0.20V (IOUT=200mA, VOUT=2.8V) Ripple Rejection Typ. 70dB (f=1kHz, VOUT=2.8V, IOUT=30mA) Line Regulation Typ. 0.02%/V (IOUT=10mA) Packages DFN(PLP)1010-4, SC-88A, SOT-23-5 Built-in Foldback Protection Circuit Typ. 60mA (Current at short mode) Built-in Constant Slope Circuit (Soft-start Function) Ceramic capacitors are recommended to be used with this IC 0.47F 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 RP202x NO.EA-279-170710 SELECTION GUIDE (1) The output voltage, auto discharge function , and package, for the IC can be selected at the users request. Product Name Package Quantity per Reel Pb Free Halogen Free DFN(PLP)1010-4 10,000pcs Yes Yes RP202Kxx1-TR SC-88A 3,000pcs Yes Yes RP202Qxx2-TR-FE SOT-23-5 3,000pcs Yes Yes RP202Nxx1-TR-FE xx : The output voltage can be designated in the range from 0.8V(08) to 4.0V(40) in 0.1V steps. : 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 BLOCK DIAGRAMS RP202xxxxB RP202xxxxD VDD VDD VOUT VOUT Vref Vref Current Limit Current Limit CE CE GND GND (1) Auto-discharge function quickly lowers the output voltage to 0V, when the chip enable signal is switched from the active mode to the standby mode, by releasing the electrical charge accumulated in the external capacitor. 2