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R1191 Series
16V Input Manual ECO Mode Shift 300mA Voltage Regulator with Reverse Current Protection
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 |
Protections / Functions
| TSD | Reverse | Current Limit | ISC | Inrush | Constant Slope | ECO mode | Auto Discharge | External Driver |
|---|---|---|---|---|---|---|---|---|
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Technical Documents
Typical Application
C1: 2.2 µF, C2: 4.7 µF
R1191x050x Dropout Voltage vs. Output Current (Fast Response Mode)
Quality & Packages
| Product Name | Compatibility | Package | Marking | Reliability |
|---|---|---|---|---|
| R1191Lxxxx-TR |
|
DFN1616-6 | R1191L | R1191L |
| R1191Nxxxx-TR-FE |
|
SOT-23-5 | R1191N | R1191N-FE |
| R1191Hxxxx-T1-FE |
|
SOT-89-5 | R1191H | R1191H-FE |
| R1191Nxxxx-TR-AE |
|
SOT-23-5 | R1191N | R1191N-AE |
| R1191Hxxxx-T1-AE |
|
SOT-89-5 | R1191H | R1191H-AE |
C
P
A
1
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Please contact us or our distributors for unpublished reliability information.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
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Authorized Distributors
Please contact your local distributors for any sales-related inquiry such as price, stock, delivery, etc.
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 |