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R1191 Series
16V Input Manual ECO Mode Shift 300mA Voltage Regulator with Reverse Current Protection

Product Specifications

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.

FEATURES

  Consumer Automotive
Input Voltage Range (Maximum Rating) 3.5 V to 16.0 V (18 V)
Operating Temperature Range -40 to 85°C
Supply Current Typ. 50 µA (Fast Mode),
Typ. 6.0 µA (Low Power Mode)
Standby Mode Typ. 0.3 µA
Reverse Current Max. 0.1 µA
Output Current Min. 300 mA
Output Voltage Range 2.0 V to 15.0 V (0.1V steps)
Output Voltage Accuracy ±1.5% (Fast Mode)
±2.5% (Low Power Mode)
Temperature-Drift Coefficient of Output Voltage Typ. ±80 ppm/°C
Dropout Voltage Typ. 0.55 V (Fast Mode, IOUT=300mA ,VOUT=5.0V)
Typ. 0.70 V (Low Power Mode, IOUT=300mA,VOUT=5.0V)
Ripple Rejection Typ. 60 dB (f=1kHz,VOUT=5.0V, Fast Mode)
Line Regulation Typ. 0.02%/V (Fast Mode)
Packages DFN1616-6, SOT-23-5, SOT-89-5 SOT-23-5, SOT-89-5
Built-in Fold-back Protection Circuit Typ. 50mA (Current at short mode)
Built-in Thermal Shutdown Circuit Shutdown Temperature at 150°C
Ceramic capacitors are recommended to be used with this IC CIN=2.2 µF or more, COUT=4.7 µF or more

APPLICATION INFORMATION

C1: 2.2 µF, C2: 4.7 µF

TYPICAL CHARACTERISTICS

R1191x050x
Dropout Voltage vs. Output Current (Fast mode)

PIN DESCRIPTION

DFN1616-61.6 mm × 1.6 mm

DFN1616-6

1 ECO
2 NC
3 VDD
4 VOUT
5 GND
6 CE

*) The tab is substrate level (GND).

SOT-23-52.9 mm × 2.8 mm

SOT-23-5

1 ECO
2 GND
3 CE
4 VOUT
5 VDD
SOT-89-54.5 mm × 4.35 mm

SOT-89-5

1 VOUT
2 GND
3 CE
4 ECO
5 VDD

R1191 Series for Consumer

APPLICATIONS

  • Power source for digital home appliances
  • Power source for audio visual equipment

PRODUCT LONGEVITY PROGRAM

R1191N and R1191H operate PRODUCT LONGEVITY PROGRAM.
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.


SELECTION GUIDE

The output voltage, auto-discharge function, and package, for the ICs can be selected at the user’s request.

Product Name   Package Quantity per Reel
R1191Lxxx#-TR
Consumter DFN1616-6 5,000
R1191Nxxx#-TR-FE ConsumterPLP SOT-23-5 3,000
R1191Hxxx#-T1-FE ConsumterPLP SOT-89-5 1,000
  • xxx … The output voltage can be designated in the range from 2.0V(020) to 15.0V(150) in 0.1V steps.
  • # … The auto discharge function at off state are options as follows.
    B: without auto discharge function at off state.
    D: with auto discharge function at off state.

* Auto-discharge function quickly lowers the output voltage to 0V, when the chip enable signal is switched from the active mode to the standby mode, by releasing the electrical charge accumulated in the external capacitor.

DOCUMENT/CONTACT

Purchase

Technical Support

Package *1 Marking Reliability *2
DFN1616-6 R1191L R1191L
SOT-23-5 R1191N R1191N (-FE)
SOT-89-5 R1191H R1191H (-FE)

*1: The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and land pattern (foot pattern).
*2: Reliability file includes a reliability test report and a reflow profile.


R1191 Series for Automotive

Ricoh is committed to providing a semiconductor device with the highest level of quality and reliability by restricting the device manufacturing only within Ricoh and the cooperative companies successfully passed our stringent inspections for automotive products. Ricoh established a traceability system and manages manufacturing information and logistics information from the warehouse.


Quality Ranks for Applications

Ricoh offers three different quality ranks for automotive products according to their application purposes.
R1191 Series offer products in Rank 3.

Rank 3: Automotive Accessories

  • Power source for car accessories such as car audio equipment, car navigation system, and ETC system

AEC-Q100 Grade 3 Compliant


PRODUCT LONGEVITY PROGRAM

R1191N and R1191H operate PRODUCT LONGEVITY PROGRAM.
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.


SELECTION GUIDE

The output voltage, auto-discharge function, and package, for the ICs can be selected at the user’s request.

Product Name   Package Quantity per Reel
R1191Nxxx#-TR-AE AutomotiveAutomotive AccessoriesAEC-Q100PLP SOT-23-5 3,000
R1191Hxxx#-T1-AE AutomotiveAutomotive AccessoriesAEC-Q100PLP SOT-89-5 1,000
  • xxx … The output voltage can be designated in the range from 2.0V(020) to 15.0V(150) in 0.1V steps.
  • # … The auto discharge function at off state options are as follows.
    B: without auto discharge function at off state.
    D: with auto discharge function at off state.

* Auto-discharge function quickly lowers the output voltage to 0V, when the chip enable signal is switched from the active mode to the standby mode, by releasing the electrical charge accumulated in the external capacitor.

DOCUMENT/CONTACT

Purchase

Technical Support

Package*1 Reliability*2
SOT-23-5 R1191N (-AE)
SOT-89-5 R1191H (-AE)

*1: The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and land pattern (foot pattern).
*2: Reliability file includes a reliability test report and a reflow profile.

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