NR1640 Series
200mA Ultra-low Noise Voltage Regulator
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Provides at-a-glance product features, functions, and concepts.
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Description
The NR1640 is a CMOS-based ultra-low noise, high PSRR voltage regulator featuring 200 mA output current and 5.5 V maximum input voltage. With noise characteristics of 6 μVrms and high ripple rejection of 80 dB or more @100 kHz, high quality power can be supplied, ideal for high precision sensing systems where noise is an issue. The slope of output voltage at startup can be selected from 4 types. These options will meet the demand of suppression of inrush current and start-up slope requirement. In addition, the auto discharge function option will contribute to make the output shutdown fast to discharge output capacitance with internal discharge FET.
Spec
Industrial | Automotive | |
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Input Voltage Range | 2.7 V to 5.5 V (6.5 V) | |
Operating Temperature Range | -40°C to 125°C (150°C) | |
Supply Current | Typ. 350 µA | |
Standby Current | Typ. 0.1 µA | |
Output Voltage Range | 2.5 V to 4.8 V | |
Output Voltage Accuracy | ±1.0% (Ta = 25°C) | |
Dropout Voltage | Typ. 130 mV (IOUT = 200 mA, VSET = 3.3 V) |
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Ripple Rejection | Typ. 80 dB (f = 1 kHz) Typ. 80 dB (f = 100 kHz) |
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Package | SOT-23-5-DC | |
AEC-Q100 | AEC-Q100 grade 1 |
Protections / Functions
TSD | Reverse | Current Limit | ISC | Inrush | Constant Slope | ECO mode | Auto Discharge | External Driver | PGOOD |
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Functional Description
TSD | Thermal Shutdown Function |
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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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PSRR Typical Characteristics
VIN = 5V, VSET = 3.3V
Quality & Packages
Product Name | Compatibility | Package | Marking | Reliability |
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NR1640DCxxxxE1D |
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SOT-23-5-DC | See datasheet | NR1640DCD |
NR1640DCxxxxE1P |
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SOT-23-5-DC | See datasheet | NR1640DCP |
NR1640DCxxxxE1Q |
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SOT-23-5-DC | See datasheet | NR1640DCQ |
- 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.