R1173 Series
1A Voltage Regulator
R1173 Series
1A Voltage Regulator
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Description
The R1173 Series are CMOS-based LDO regulators featuring 1A output. R1173 offers almost the same basic performances as the R1172 Series. But R1173 offers an excellent load regulation. While the output voltage is internally set in the R1172 Series, the R1173 Series is available in two versions: standard version in which the output voltage is internally set and the adjusted version in which it is set with external resistors. For this reason, when the output voltage is not determined yet, the adjusted version can be used for advanced production. After the final determination of the voltage is made, it can be replaced with the standard version.
Spec
| Standard | |
|---|---|
| Input Voltage Range | 1.4 V to 6.0 V (6.5 V) |
| Operating Temperature Range | -40°C to 85°C (125°C) |
| Supply Current | Typ. 60 µA |
| Standby Current | Typ. 0.1 µA (Topt = 25°C) |
| Output Voltage Range | Internally Fixed Ver.: 0.8 V to 5.0 V (0.1 V step) Externally Adjustable Ver.: 1.0 V to VIN |
| Output Voltage Accuracy | ±2.0% (Ta = 25°C) |
| Output Voltage Temperature Coefficient | Typ. ±100 ppm/°C |
| Dropout Voltage | Typ. 0.32 V (VOUT = 1.5 V, IOUT = 1 A) Typ. 0.18 V (VOUT = 2.8 V, IOUT = 1 A) |
| Line Regulation | Typ. 0.05%/V |
| Load Regulation | Typ. -2 mV (IOUT = 300 mA) Typ. -3 mV (IOUT = 1 A) |
| Output Current | 1 A |
| Ripple Rejection | Typ. 70 dB (VOUT = 2.8 V) |
| Package | SOT-89-5, HSON-6, HSOP-6J |
Protections / Functions
| TSD | Reverse | Current Limit | ISC | Inrush | ECO mode | Auto Discharge | External Driver | PGOOD | Soft Start |
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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 |
Technical Documents
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Typical Application: Fixed Output Type
C1,C2: 4.7µF or more
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R1173x301x Dropout Voltage vs. Output Current
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.
FAQ
Buy / Contact
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Purchase, Request for samples and documentsSales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
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Available from 1 piece!Our electronic device products are available through our authorized online distributors.
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Technical Support
R1173 Series