Nisshinbo Micro Devices has announced the launch of its NP4271 series, a new LDO voltage regulator designed specifically for automotive applications requiring high functional safety standards. This innovative series features integrated watchdog timers (WDTs) and reset functions with window-type output voltage monitoring, addressing the growing demand for enhanced system stability and failure detection in automotive electronics.
As modern vehicles increasingly rely on sophisticated electronic controls, the need for robust voltage monitoring and redundancy has grown. The NP4271 series responds to this demand with a single-chip solution that integrates highly accurate WDTs, reset functions, and a 500 mA output current LDO regulator, contributing to the miniaturization and security of critical automotive systems.
Key features
- Wide Operating Range: The NP4271 series operates with an input voltage range of 4.0 V to 40 V, with output voltage variations of 3.3 V or 5.0 V, suitable for a variety of automotive electronic control units (ECUs).
- High Accuracy: The series delivers ±2.0% output voltage accuracy across a wide range of operating conditions, ensuring reliable system performance even in extreme temperatures from -40°C to +125°C.
- Reset Function Variants: Two versions of the reset function are available—Version A monitors both the high and low sides of output voltage, while Version B monitors only the low side.
- Excellent Transient Response: The NP4271 series provides superior input transient response, stabilizing the system even under fluctuating power supply conditions due to varying load demands.
- Compact Design: With its integrated monitoring and control features, the NP4271 series aids in system miniaturization, making it ideal for space-constrained automotive applications such as ECUs for headlights and air conditioning panels.
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