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RP105x Series

Low Voltage 400mA LDO Regulator

Data Sheet / Flyer

The RP105x Series are 400mA output type CMOS-based voltage regulator ICs with capability of low input voltage (Min. 0.9V) and low output voltage (Min. 0.6V). These ICs are remarkably improved the performance at low input voltage compared with conventional low voltage LDOs, and two power supply voltage type. (Another power source, VBIAS pin voltage must be Min. 2.4V). Each of these ICs consists of a voltage reference unit, an error amplifier, resistor-net for voltage setting, a current limit circuit to avoid the destruction, a UVLO circuit with monitoring input voltage, and so on.

The RP105x Series have the ultra low on resistance output driver, the on resistance is Typ. 0.4Ω (VOUT=0.8V, IOUT=300mA). The built-in driver is Nch MOSFET, thus the load transient response is excellent, (under the condition of the current between 1mA and 400mA, tr=0.5μs, the undershoot level is approximately 50mV).

The output voltage of these ICs is fixed with high accuracy. Since the packages for these ICs are DFN(PLP)1212-6, SOT-23-5 and SC-88A (Non-promotion) therefore high density mounting of the ICs on boards is possible.

Note : Discontinued Products
SC-88A (RP105Q Series) will be discontinued at the end of January, 2014.

Supply Current	Typ. 28µA
Supply Current (Standby Mode)	Typ. 0.1µA
Ripple Rejection	Typ. 80dB (f=1kHz, VIN Ripple) Typ. 50dB (f=1kHz, VBIAS Ripple)
Output Voltage Range	0.6V to 1.5V (0.1V steps) (For other voltages, please refer to MARK INFORMATIONS.)
Input Voltage Range (VBIAS)	2.4V to 5.25V (VOUT < 0.8V) Set VOUT+1.6V to 5.25V (VOUT>=0.8V)
Input Voltage Range (VIN)	0.9V to VBIAS (VOUT < 0.8V) Set VOUT+0.1V to VBIAS (VOUT>=0.8V)
Output Voltage Accuracy	Typ. ±15mV (Topt=25°C)
Temperature-Drift Coefficient of Output Voltage	Typ. ±50ppm/°C
Dropout Voltage	Typ. 180mV (IOUT=400mA, VOUT=1.5V, VBIAS=3.6V)
Line Regulation	Typ. 0.02%/V
Packages	DFN(PLP)1212-6, SC-88A (Non-promotion), SOT-23-5
Built-in Fold Back Protection Circuit	Typ. 120mA (Current at short mode)
Ceramic capacitors are recommended	CBIAS=CIN=1.0µF or more, COUT=2.2µF or more

・Power source for battery-powered equipment.
・Power source for electrical appliances such as cameras, VCRs and camcorders.
・Power source for portable communication equipment.

Data Sheet	Flyer	Package Info.	Mark Info.	Quality Assurance Data
RP105x Series	RP105x Series	SOT-23-5	RP105N	Reliability
RP105x Series	RP105x Series	DFN(PLP)1212-6	RP105K	Reliability