RP170x-Y Series 300 mA 10 V Input LDO Regulator for Industrial Applications NO. EA-341-160613 OUTLINE The RP170x Series are LDO regulators featuring 300 mA output current that are developed with CMOS process technology. Because of the 10 V maximum input voltage, RP170x can be used in the industrial equipments such as FAs and smart meters. The supply current is Typ. 23 A though an excellent response characteristics. The output voltage range from 1.2 V is possible. The output voltage accuracy and temperature- drift coefficient of output voltage of the RP170x Series are excellent. RP170x has a fold-back protection circuit and a thermal shutdown circuit. Moreover, a standby mode with ultra low supply current can be realized with the chip enable function. SOT-23-5 and SOT-89-5 with high power dissipation packages are available. This is a high-reliability semiconductor device for industrial applications (-Y) that has passed both the screening at high temperature and the reliability test with extended hours. This line of products operate in a wide temperature range from low temperature to high temperature to support harsh environment applications. FEATURES Input Voltage Range (Maximum Rating) ...................... 2.6 V to 10.0 V (12 V) Operating Temperature................................................ 50C to 105C Supply Current .............................................................. Typ. 23 A Standby Mode .............................................................. Typ. 0.1 A Dropout Voltage ............................................................ Typ. 0.20 V (IOUT = 100 mA, VOUT = 3.0 V) ......................................................................................... Typ. 0.77 V (IOUT = 300 mA, VOUT = 2.8 V) Ripple Rejection ........................................................... Typ. 70 dB (f = 1 kHz) Temperature-Drift Coefficient of Output Voltage .......... Typ. 80 ppm/C Line Regulation ............................................................. Typ. 0.02%/V Output Voltage Accuracy .............................................. 1.0% Packages ...................................................................... SOT-23-5, SOT-89-5 Output Voltage Range .................................................... 1.2 V/ 1.5 V/ 1.8 V/ 2.5 V/ 2.8 V/3.0 V/ 3.3 V/ 3.4 V/ 5.0 V/ 6.0 V Contact Ricoh sales representatives for other voltages. Built-in Fold Back Protection Circuit ............................ Typ. 40mA (Current at short mode) Built-in Thermal Shutdown Circuit ............................... Shutdown Temperature at 165C Built-in Constant Slope Circuit (Soft-start Function) Ceramic capacitors are recommended to be used with this IC ............... 1.0 F or more APPLICATIONS Industrial equipments such as FAs and smart meters Equipments used under high-temperature conditions such as surveillance camera and vending machine Equipments accompanied by self-heating such as motor and lighting 1 RP170x-Y NO. EA-341-160613 BLOCK DIAGRAMS RP170xxxxB RP170xxxxD VDD VOUT VDD VOUT Vref Vref Current Limit Current Limit Thermal Shutdown Thermal Shutdown CE CE GND 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 RP170Nxx1-TR-YE SOT-23-5 3,000 pcs Yes Yes RP170Hxx1-T1-YE SOT-89-5 1,000 pcs Yes Yes xx : Specify the set output voltage (V ) SET 1.2 V (12) / 1.5 V (15) / 1.8 V (18) / 2.5 V (25) / 2.8 V (28) / 3.0 V (30) / 3.3 V (33) / 3.4 V (34) / 5.0 V (50) / 6.0 V (60) Contact Ricoh sales representatives for other voltages. : The auto discharge functions at off state are as follows. (B) without auto discharge function at off state (D) with auto discharge function at off state Auto-discharge function quickly lowers the output voltage to 0 V by releasing the electrical charge accumulated in the external capacitor when the chip enable signal is switched from the active mode to the standby mode. 2