R1191 Series
16V Input Manual ECO Mode Shift 300mA Voltage Regulator with Reverse Current Protection
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Description
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.
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Spec
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 Protections / Functions
TSD Reverse Current Limit ISC Inrush Constant Slope ECO mode Auto Discharge External Driver 
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Technical
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SPICE model download
You can download the product's SPICE model. Login/registration to myNISD is required to download.
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Typical Application
C1: 2.2 µF, C2: 4.7 µF
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R1191x050x Dropout Voltage vs. Output Current (Fast Response Mode)
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Related Links
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Quality &
Packages- Refer to the datasheets for the details on the product.
- The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
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Download Datasheet
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 |