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R1130x Series

Data Sheet / Flyer

300mA LDO REGULATOR

The R1130x Series are CMOS-based voltage regulator (VR) ICs. VR function has features of high ripple rejection, low dropout voltage, high output voltage accuracy, and ultra-low supply current. Each of these ICs consists of a voltage reference unit, an error amplifier, resistors for setting output voltage, and a current limit circuit. Each of the R1130xxxxA/B type includes also a chip enable circuit.

The output voltage of the R1130xxxxC type is adjustable with external resistors.

The output voltage of R1130xxxxA/B is fixed in the IC. Low supply current by the merit of CMOS process and built-in transistors with low ON-resistance make low dropout voltage. These regulators in the R1130x Series are remarkable improvement on the current regulators in terms of ripple rejection, input transient response, and load transient response. Maximum Output Current is large for its compact size.

Thus, the R1130x Series are suitable for power supply for CD-drives, DVD-drives, and so forth.

Since the packages for these ICs are the SOT-89-5 package or HSON-6 (Limited), high density mounting of the ICs on boards is possible.

Supply Current	Typ. 50µA
Standby Current	Typ. 0.1µA (VR) for A type
Ripple Rejection	Typ. 60dB(f=1kHz)(VR)
Output Current	Min. 300mA(Vin=Vout+1V)
Output Voltage Range	1.5V to 5.0V (0.1V steps) Externally specified with the ADJUST pin (Reference Voltage 1.8V : C Version) (For other voltages, please refer to MARK INFORMATIONS.)
Output Voltage Accuracy	±2.0% (VR) for A/B type, ±2.0% (Reference Voltage for adjustable VR) for C type
Dropout Voltage	Typ. 0.2V (IOUT=100mA) (VR)
Temperature-drift Coefficient of Output Voltage	±100ppm/°C
Absolute Maximum Voltage	9.0V
Packages	SOT-89-5, HSON-6 (Limited)
Built-in Current Limit Circuit
Internal Phase Compensation (small output capacitance such as 0.1µF Ceramic can be used with.)