RP111x Series AEC-Q100 Compliant Good Transient Response Low Voltage 500 mA LDO for Automotive Applications NO.EC-241-200630 OUTLINE The RP111x is a CMOS-based LDO regulator featuring 500 mA output current. The input voltage is as low as 1.4 V and the output voltage can be set from 0.7 V. Due to a built-in 0.46 (at V = 2.8 V) on-resistor, RP111x OUT can provide a low dropout voltage. RP111x also features an excellent line transient response, ripple rejection at 75 dB, and low noise. The output voltage accuracy is as high as 0.8% and the temperature drift coefficient of output voltage is low at 30 ppm/C. The accuracy of the output voltage of RP111x includes the temperature characteristics and the load transient response has been improved. The typ. and max value of under/overshoot for various output current are shown in the typical characteristics, therefore the accuracy of the output voltage estimation will be easy on the actual operating cases. In addition to a fold-back protection circuit built into conventional regulators, RP111x contains a thermal shutdown circuit and an inrush current limit circuit. SOT-23-5, SOT-89-5, and HSOP-6J packages are available. FEATURES Input Voltage Range (Maximum Rating) 1.4 V to 5.25 V (6.0 V) Operating Temperature 40C to 105C Supply Current Typ. 80 A Standby Current Typ. 0.1 A Dropout Voltage Typ. 0.23 V (IOUT = 500 mAVSET = 2.5 V) Ripple Rejection Typ. 75 dB (f = 1 kHz) Typ. 70 dB (f = 10 kHz) Output Voltage Accuracy 0.8% (VSET 1.8 V) Output Voltage Temperature Coefficient Typ. 30 ppm/C (VSET 1.8 V) Feedback Voltage Accuracy 0.718 mV Feedback Voltage Temperature Coefficient Typ. 100 ppm/C Line Regulation Typ. 0.02%/V Input Transient Response Typ. 1.5 mV (VINVSET + 0.5 VVSET + 1.5 V (tr = tf = 5.0 s), VIN 1.4 V, IOUT = 30 mA) Packages SOT-23-5, SOT-89-5, HSOP-6J Output Voltage Range 0.7 V, 1.1 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 2.8 V, 2.85 V, 2.9 V, 3.0 V, 3.3 V, 3.4 V Contact Ricoh sales representatives for other voltages. RP111x001B/D: 0.7 V to 3.6 V (Adjustable with external resistor) Built-in Fold-back Protection Circuit Typ. 50 mA Thermal Shutdown Temperature 165C Inrush Current Limit Typ. 400 mA (for 180 s after start-up) Ceramic capacitors are recommended to be used with this IC 1.0 F or more (Internally Fixed Output Voltage) Output Noise 20 x VSETVrms (BW = 10 Hz to 100 kHz, VSET 1.8 V) APPLICATIONS Power source for accessories such as car audios, car navigation systems, and ETC systems Power source for ECUs such as EV inverter and battery charge control unit 1 RP111x NO.EC-241-200630 BLOCK DIAGRAMS Internally Fixed Output Voltage (HSOP-6J) RP111Sxx1B RP111Sxx1D VDD VOUT VDD VOUT Vref Vref Current Limit Current Limit Thermal Shutdown Thermal Shutdown CE CE GND GND Internally Fixed Output Voltage (SOT-23-5/ SOT-89-5) RP111Nxx1B / RP111Hxx1B RP111Nxx1D / RP111Hxx1D VDD VDD VOUT VOUT V V FB FB Vref Vref Current Limit Current Limit Thermal Shutdown Thermal Shutdown CE CE GND GND Externally Adjustable Output Voltage (HSOP-6J/ SOT-23-5/ SOT-89-5) RP111S001B / RP111N001B / RP111H001B RP111S001D / RP111N001D / RP111H001D VDD VDD VOUT VOUT V V FB FB Vref Vref Current Limit Current Limit Thermal Shutdown Thermal Shutdown CE CE GND GND 2