R1150H Series

Voltage Regulator (with Wide Input Voltage Range) with Reset for Automotive Applications


Data Sheet

Data Sheet

The R1150H series are CMOS-based voltage regulator (VR) ICs equipped with a voltage detector (VD). VR function of the R1150Hxxxx has features of low dropout voltage, high output voltage accuracy, and ultra-low supply current. Each of the R1150HxxxA series includes also a chip enable circuit. The output of built-in voltage detector is Nch open drain type. The R1150HxxxC/D have a pin for connecting external capacitor to set a certain reset delay time instead of chip enable control pin.
The regulator output voltage and the detector threshold voltage are fixed in the IC, Output Voltage Accuracy is ±2.0%, while Detector Threshold Accuracy is ±2.5%. The R1150HxxxA (with chip enable function) and R1150HxxxC series can supervise input voltage by the built-in detector. R1150HxxxB can supervise SENSE pin voltage by the built-in detector. R1150HxxxD type can supervise VOUT voltage, or Regulator Output Voltage of this IC itself.
Since the package for these ICs is the SOT-89-5 package, high density mounting of the ICs on boards is possible.


Input Voltage Range (Maximum Rating) Max. 24.0V (26V)
Supply Current Typ. 7.0µA
Output Voltage (VR) 2.1V to 14.0V (0.1V steps)
Detector Threshold Voltage (VDET) 2.0V to 15.0V (R1150HxxxB/C/D)
2.3V to 15.0V (R1150HxxxA)
Output Voltage Accuracy ±2.0% (VR), ±2.5% (VD)
Output Current Min. 150mA (VOUT=5.0V)
Output Voltage Temperature Coefficient Typ. ±100 ppm/°C
Detector Threshold Temperature Coefficient Typ. ±100 ppm/°C
Package SOT-89-5
Built-in Fold-Back Protection Circuit Typ. 45mA (Current at short mode)
Built-in Thermal Shutdown Circuit (VR) Thermal Shutdown Temperature: Typ. 150°C
Released Temperature: Typ. 120°C
Monitoring VDD voltage R1150HxxxA/C
Monitoring sense pin (SENSE) voltage R1150HxxxB
Monitoring VOUT pin voltage R1150HxxxD


  • 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
R1150H Series SOT-89-5 Contact us*2 -HE 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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