NP4271 Series
40V Io=500mA LDO With Watchdog Timer and Reset
NP4271 Series
40V Io=500mA LDO With Watchdog Timer and Reset
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Provides at-a-glance product features, functions, and concepts.
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Description
The NP4271 is a using Bi-CMOS process, Io = 500 mA low dropout regulator with watchdog timer and reset functions. The output voltage is detected by window detection that can detect the high-side voltage and low-side voltage. The NP4271 offers outstanding high output voltage accuracy that guaranteed ±2% under the conditions of VIN = VO+ 1V to 40 V, IO = 5 mA to 500 mA, and Ta = −40°C to 125°C. This feature makes the device well suited as automotive ECUs and industrial applications.
Applications
- Automotive ECUs
- Industrial equipment
Spec
| Automotive | |
|---|---|
| Input Voltage Range | 4.0 V to 40 V (45 V) |
| Operating Temperature Range | -40°C to 125°C(150°C) |
| Supply Current | Typ. 120 µA |
| Standby Current | Max. 1.0 µA(@ta=25℃) |
| Output Voltage Accuracy | Typ. ±1 % |
| Output Current | Min. 500 mA |
| Ripple Rejection | Typ. 68 dB |
| Package | HSOP-8-AC |
| Function | ON/OFF control Watchdog time setting by external capacitor |
| Note | Ceramic capacitor compatible Undervoltage lockout Thermal shutdown Overcurrent protection |
| AEC-Q100 | AEC-Q100 Grade 1 |
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.
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
NP4271 Series