R1511x-Y Series

300mA 36V Input Regulator for High Temperature Applications


Data Sheet

Data Sheet

The R1511x is a CMOS-based high-voltage resistant and fast response voltage regulator that provides the minimum 300mA of output current. Internally, R1511x consists of an Output Short-circuit Protection Circuit, an Over-current Protection Circuit, and a Thermal Shutdown Circuit in addition to the basic regulator circuits. The operating temperature range is between -40ºC to 105ºC, and the maximum input voltage is 36V. All these features allow the R1511x to become an ideal power source for industrial equipments such as FAs and smart meters.
R1511x is available in R1511xxxxB with the fixed output voltage type: 3.0V / 3.3V / 3.4V / 5.0V / 6.0V / 8.0V / 8.5V / 9.0V, and R1511x001C with adjustable output voltage type with external resistors. The output voltage accuracy is ±1.0%.
R1511x is available in two types of packages for ultra high wattage: HSOP-6J and TO-252-5-P2.


Input Voltage Range (Maximum Rating) 3.5V to 36V (50V)
Operating Temperature Range −40°C to 105°C (*)
Supply Current Typ. 100µA
Standby Current Typ. 0.1µA (R1511xxxxB)
Output Voltage Range R1511xxxxB: 3.0V / 3.3V / 3.4V / 5.0V / 6.0V / 8.0V / 8.5V / 9.0V
Contact Ricoh sales representatives for other voltages.
R1511x001C: 3.0V to 12.0V (Adjustable with external resistor)
Output Voltage Accuracy R1511xxxxB: ±1.0% (Ta=25°C)
Feedback Voltage R1511x001C: 3.0V ±1.0% (Ta=25°C)
Output Voltage Temperature-Drift Coefficient Typ. ±60ppm/°C
Line Regulation Typ. 0.01%/V (VDD=VOUT+0.5V to 36V)
Dropout Voltage Typ. 0.64V (IOUT=300mA, VOUT=5.0V)
Package Option HSOP-6J, TO-252-5-P2
Built-in Output Short-circuit Protection Circuit Typ. 50mA
Built-in Over-current Protection Circuit Typ. 450mA
Built-in Thermal Shutdown Circuit Thermal Shutdown Temperature: Typ. 160°C
Ripple Rejection Typ. 65dB (1kHz)
Ceramic capacitors are recommended to be used with this IC CIN=1.0µF or more, COUT=6.8µF or more
  • *This product is usable for the high-temperature applications since have passed a test at the high temperature. In addition, this product has a high-reliability since having passed Ricoh’s rigorous quality standards. To distinguish from the consumer products, “-Yx” is added at the end of the product name.


  • Industrial equipments such as FAs and smart meters
  • Equipments used under high-temperature conditions
  • Equipments accompanied by self-heating

Documents Download

Data Sheet Package Info. Quality Assurance Data
R1511x-Y Series HSOP-6J Reliability
TO-252-5-P2 Reliability

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