NR1641 Series
1A Equipped with Low Power Mode Ultra-Low Noise Low Dropout Voltage Regulator
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Provides at-a-glance product features, functions, and concepts.
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Description
The NR1641 series are CMOS based low dropout voltage regulator that achieves both ultra-low output noise, high ripple rejection, high-speed response characteristics, and low quiescent current. The MODE pin input voltage can be used to select between the automatic alternative mode and the fixed fast mode. The automatic alternative mode changes the internal mode between low power mode and the fast mode according to the load current. In addition, Slope of Output Voltage at Start-up can be selected from 200 μs/V or 500 μs/V. By this option, depending on the capacitance connected to the output pin, the inrush current limit can be changed. Since the NR1640 has low quiescent current, low noise, and high ripple rejection, it is suitable for IoT devices, battery-powered devices, and the noise sensitive analog application.
Spec
| Standard | |
|---|---|
| Input Voltage Range | 1.7 V to 5.5 V (6.5 V) |
| Operating Temperature Range | -40°C to 85°C (125°C) |
| Supply Current | Low Power Mode: Typ. 17 µA Fast Mode: Typ. 1.5 mA |
| Standby Current | Typ. 0.01 µA |
| Output Voltage Range | 1.0 V to 5.0 V |
| Output Voltage Accuracy | ±1.0% (VSET ≥ 1.8 V, Ta = 25°C) |
| Dropout Voltage | Typ. 0.10 V (IOUT = 500 mA, VSET = 2.8 V) Typ. 0.20 V (IOUT = 1000 mA, VSET = 2.8 V) |
| Ripple Rejection | Typ. 75 dB (f = 1 kHz, VSET = 2.8 V) Typ. 80 dB (f = 10 kHz, VSET = 2.8 V) Typ. 85 dB (f = 100 kHz, VSET = 2.8 V) |
| Package | WLCSP-6-ZA3, DFN1616-6-GY, HSON-6-GU |
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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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
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Output Noise Spectral Density
Quality & Packages
| Product Name | Compatibility | Package | Marking | Reliability |
|---|---|---|---|---|
| NR1641ZAxxxxE2S |
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WLCSP-6-ZA3 | See datasheet | NR1641ZAS |
| NR1641GYxxxxE4S |
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DFN1616-6-GY | See datasheet | NR1641GYS |
| NR1641GUxxxxE4S |
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HSON-6-GU | See datasheet | NR1641GUS |
- 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