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R1501x Series

1A LDO REGULATOR (Operating Voltage up to 24V)

Data Sheet / Flyer

The R1501x series are CMOS-based positive voltage regulator (VR) ICs. The R1501xxxxB has features of high input voltage operating, 1A output current drive, and low supply current.

A DMOS transistor is used for the driver, high voltage operating and low on resistance (0.6Ω at VOUT=10V) device is realized. A standard regulator circuit with a current limit circuit and a thermal shutdown circuit are built in the R1501x series.

As the operating temperature range is from -40°C to 105°C and maximum input voltage is up to 24V, the R1501x series are suitable for the constant voltage source for digital home appliances and car accessories.

The regulator output voltage is fixed in the R1501x. Output voltage accuracy is ±2.0% and output voltage range is from 3.0V to 12.0V with a step of 0.1V, and from 12.5V to 18.0V with a step of 0.5V. The chip enable pin realizes ultra low supply current standby mode.

Since the packages for these ICs are the HSOP-6J for high density mounting of the ICs on boards, and the TO-252-5-P2.

*) The DMOS (Double Diffused MOS) transistor adopted by R1501x is characterized by a double diffusion structure which comprises a low density n-type (channel) diffused layer and a high density p-type (sources) diffused layer from the edge of the gate electrode. The R1501x series possess outstanding properties of high operating voltage and low on-resistance, which have been achieved by the channel length scaled down to submicron dimensions and decreased thickness of the gate oxide film.

Supply Current	Typ. 70µA
Standby Current	Typ. 0.1µA
Output Current	Min. 1A
Input Voltage Range	3.0V to 24.0V
Ripple Rejaction	Typ. 60dB (VSET=5.0V)
Output Voltage Range	3.0V to 12.0V (0.1V steps) 12.5V to 18.0V (0.5V steps) (For other voltages, please refer to MARK INFORMATIONS.)
Output Voltage Accuracy	±2%
Temperature-Drift Coefficient of Output Voltage	Typ. ±100ppm/°C
Line Regulation	Typ. 0.05%/V
Packages	HSOP-6J, TO-252-5-P2
Operating Temperature range	−40°C to 105°C
Built-in Current Limit Circuit
Built-in Fold-Back Circuit
Built-in Thermal Shutdown Circuit

・Power source for home appliances such as refrigerators, rice cookers, electric water warmers, etc.
・Power source for car audio equipment, car navigation system, ETC system, etc.
・Power source for notebook PCs, digital TVs, cordless phones, and private LAN system, etc.
・Power source for office equipment machines such as copiers, printers, facsimiles, scanners, projectors, etc.

Data Sheet	Flyer	Package Info.	Mark Info.	Quality Assurance Data
R1501x Series	R1501x Series	HSOP-6J	R1501S	Reliability
R1501x Series	R1501x Series	TO-252-5-P2	R1501J	Reliability