R1511x SeriesAEC-Q100 Compliant

300mA 36V Input Regulator for Automotive 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 125ºC, and the maximum input voltage is 36V. All these features allow the R1511x to become an ideal power source for car accessories and ECUs.
R1511x is available in R1511xxxxB with the fixed output voltage type, 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)
Supply Current Typ. 100µA
Standby Current Typ. 0.1µA (R1511xxxxB)
Output Voltage Range R1511xxxxB: 3.0 V to 9.0 V (0.1 V step)
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
Operating Temperature Range -40 to 125°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


  • Power source for accessories such as car audios, car navigation systems, and ETC systems
  • Power source for ECUs such as EV inverter and battery charge control unit

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Data Sheet Package Quality Assurance Data Suffix Composition & Content*1
R1511x Series
HSOP-6J Contact us*2 -KE Sn (Sn: 100%)
Reliability -AE
TO-252-5-P2 Contact us*2 -KE Sn (Sn: 100%)
Reliability -AE
  • *1The composition of the product cannot be specified.
  • *2The reliability information is not listed for devices above rank2. Please contact Ricoh sales representatives for further informations.

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