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R1191 Series

16V Input Manual ECO Mode Shift 300mA Voltage Regulator with Reverse Current Protection

  • Consumer
  • Automotive
  • PLP
  • AEC-Q100
  • RoHS

The R1191 Series are CMOS-based manual mode switching 16V input voltage regulators with ECO pin featuring 300mA output. By inputting control signals to the ECO pin, the mode of the regulator can be switched to low power mode or fast response mode, thus making both active and sleep modes available for the system. The built-in reverse current protection circuit prevents the current flow from VOUT to VDD when VOUT is higher than VDD. This feature makes the product ideally suited for backup circuit. Standby mode and auto-discharge function are also available.

Specs & Datasheets

  Consumer Automotive
Input Voltage Range 3.5 V to 16.0 V (18.0 V)
Operating Temperature Range -40°C to 85°C (125°C)
Supply Current Typ. 50 µA (Fast Mode)
Typ. 6.0 µA (Low Power Mode)
Standby Current Typ. 0.3 µA
Output Voltage Range 2.0 V to 15.0 V (0.1 V step)
Output Voltage Accuracy ±1.5% (Fast Mode)
±2.5% (Low Power Mode)
Output Voltage Temperature Coefficient Typ. ±80 ppm/°C
Dropout Voltage Typ. 0.55 V (Fast Mode, IOUT = 300 mA, VOUT = 5.0 V)
Typ. 0.70 V (Low Power Mode, IOUT = 300 mA, VOUT = 5.0 V)
Line Regulation Typ. 0.02%/V (Fast Mode)
Output Current Min. 300 mA
Ripple Rejection Typ. 70 dB
Package DFN1616-6, SOT-23-5, SOT-89-5 SOT-23-5, SOT-89-5

Download Datasheet

Protections / Functions

Functional Description

TSD Reverse Current Limit ISC Inrush Constant Slope ECO mode Auto Discharge External Driver

Technical Documents

SPICE model download

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Typical Application

Typical Application

C1: 2.2 µF, C2: 4.7 µF

R1191x050x Dropout Voltage vs. Output Current (Fast Response Mode)

R1191x050x Dropout Voltage vs. Output Current (Fast Response Mode)

Quality & Packages

Product Name Compatibility Package Marking Reliability
  • gradeConsumerC
DFN1616-6 R1191L R1191L
  • gradeConsumerC
  • plpP
SOT-23-5 R1191N R1191N-FE
  • gradeConsumerC
  • plpP
SOT-89-5 R1191H R1191H-FE
  • gradeAutomotiveA
  • aecQ1001
  • plpP
SOT-23-5 R1191N R1191N-AE
  • gradeAutomotiveA
  • aecQ1001
  • plpP
SOT-89-5 R1191H R1191H-AE

Refer to the datasheets for the details on the product.
The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
Please contact us or our distributors for unpublished reliability information.

Sample / Buy

Functional Description

TSD Thermal Shutdown Function
Reverse Current Protection Reverse Current Protection
Current Limit Overcurrent Protection
ISC Short Current Protection
Inrush Current Limit Inrush Current Protection
Constant Slope Constant Slope Function
ECO mode ECO Function
Auto Discharge Auto Discharge Function
External Driver External Output Driver Transistor

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Functions ECO mode,Auto Discharge