Overview
The NCV4275A, specifically the NCV4275ADS50R4G model from onsemi, is an integrated low dropout (LDO) voltage regulator designed for use in harsh automotive environments. This regulator offers a regulated output voltage of either 5.0 V or 3.3 V, with a maximum output current of 450 mA. It features a wide operating temperature range and input voltage range, making it suitable for various automotive applications. The device includes several protective features such as overcurrent protection, overtemperature protection, and a programmable microprocessor reset.
Key Specifications
| Characteristic | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Output Voltage (5.0 V Version) | V | 4.9 | 5.0 | 5.1 |
| Output Voltage (3.3 V Version) | V | 3.23 | 3.3 | 3.37 |
| Output Current Limitation | mA | 450 | - | 700 |
| Input Voltage Operating Range (5.0 V Output) | V | 6.0 | - | 42 |
| Input Voltage Operating Range (3.3 V Output) | V | 4.4 | - | 42 |
| Junction Temperature | °C | -40 | - | 150 |
| Dropout Voltage (Max) | V | - | - | 0.5 |
| Thermal Shutdown Temperature | °C | - | - | 150-210 |
Key Features
- 5.0 V and 3.3 V output voltage options with ±2% accuracy
- 450 mA output current capability
- Very low current consumption
- Active reset output with programmable reset delay
- Reset low down to VQ = 1.0 V
- 500 mV (max) dropout voltage
- Fault protection including:
- +45 V peak transient voltage
- -42 V reverse voltage
- Short circuit protection
- Thermal overload protection
- AEC-Q100 Grade 1 qualified and PPAP capable
- Pin compatible with NCV4275
- Pb-free devices
Applications
- Auto body electronics
- Automotive systems requiring robust voltage regulation and fault protection
Q & A
- What are the available output voltage options for the NCV4275A?
The NCV4275A offers output voltage options of 5.0 V and 3.3 V with ±2% accuracy.
- What is the maximum output current of the NCV4275A?
The maximum output current is 450 mA.
- What are the input voltage operating ranges for the 5.0 V and 3.3 V output versions?
The input voltage operating range for the 5.0 V output is 6.0 V to 42 V, and for the 3.3 V output, it is 4.4 V to 42 V.
- What is the junction temperature range for the NCV4275A?
The junction temperature range is -40°C to 150°C.
- Does the NCV4275A have built-in fault protection?
- Is the NCV4275A qualified for automotive use?
- What packages are available for the NCV4275A?
The NCV4275A is available in DPAK and D2PAK surface mount packages.
- How does the reset function work on the NCV4275A?
The device has an active reset output that can be programmed with a reset delay using an external capacitor. The reset output is accurate when the input voltage is above 1.0 V.
- What is the thermal shutdown temperature for the NCV4275A?
The thermal shutdown temperature is between 150°C and 210°C.
- Is the NCV4275A Pb-free?
