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R1131x Series

Low Voltage 300mA LDO REGULATOR

Data Sheet / Flyer

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The R1131x Series are CMOS-based low voltage regulator ICs with output voltage range from 0.8V to 3.3V. The minimum operating voltage is 1.4V. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, a current limit circuit, and a chip enable circuit.

To prevent the destruction by over current, current limit circuit is included. Standby mode realizes ultra small consumption current.

The output voltage of these ICs is internally fixed with high accuracy. Since the packages for these ICs are SOT-23-5, SON-6, and HSON-6 (Non-promotion), high density mounting of the ICs on boards is possible.

Note : Discontinued Products
HSON-6 (R1131Dxx2 Series) will be discontinued at the end of January, 2014.

Supply Current	Typ. 80µA (VOUT < 1.8V) Typ. 60µA (VOUT >=1.8V)
Standby Mode	Typ. 0.1µA
Dropout Voltage	Typ. 0.48V(IOUT=300mA Output Voltage=1.0V Type) Typ. 0.31V(IOUT=300mA Output Voltage=1.5V Type) Typ. 0.23V(IOUT=300mA Output Voltage=3.0V Type)
Ripple Rejection	Typ. 65dB (f=1kHz)
Temperature-Drift Coefficient of Output Voltage	Typ. ±100ppm/°C
Line Regulation	Typ. 0.01%/V
Output Voltage Accuracy	±2.0%
Output Voltage Range	0.8V to 3.3V (0.1V steps) (For other voltages, please refer to MARK INFORMATIONS.)
Input Voltage Range	1.4V to 6.0V
Packages	SOT-23-5, SON-6, HSON-6 (Non-promotion)
Built-in fold-back protection circuit	Typ. 50mA (Current at short mode)
External Capacitors	CIN=COUT=Tantalum 1.0µF (VOUT < 1.0V) CIN=COUT=Ceramic 1.0µF (VOUT >=1.0V)

・Precision Voltage References.
・Power source for electrical appliances such as cameras, VCRs and hand-held communication equipment.
・Power source for battery-powered equipment.

Data Sheet	Flyer	Package Info.	Mark Info.	Quality Assurance Data
R1131x Series	R1131x Series	SOT-23-5	R1131N	Reliability
R1131x Series	R1131x Series	SON-6	R1131Dxx1	Reliability