Overview
The NCV4276B, produced by onsemi, is a 400 mA output current integrated low dropout voltage regulator designed for use in harsh automotive environments and other applications requiring robust performance. This regulator is available in 3.3 V, 5.0 V, and adjustable voltage versions, with the adjustable version offering a range from 2.5 V to 20 V. It features a high peak input voltage tolerance, reverse input voltage protection, and comprehensive fault protection including overcurrent, overtemperature, and short circuit protection. The device is offered in DPAK and D2PAK surface mount packages, ensuring versatility in design and application.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage | VI | -42 | 45 | V | |
| Input Peak Transient Voltage | VI | 45 | V | ||
| Output Voltage (5.0 V Version) | VQ | 4.9 | 5.0 | 5.1 | V |
| Output Voltage (3.3 V Version) | VQ | 3.234 | 3.3 | 3.366 | V |
| Output Voltage (Adjustable Version) | AVQ | -2% | +2% | V | |
| Output Current Limitation | IQ | 400 | 1100 | mA | |
| Dropout Voltage (5.0 V Version) | VDR | 500 | mV | ||
| Quiescent Current (Sleep Mode) | Iq | 10 | μA | ||
| Thermal Shutdown Temperature | TSD | 150 | 210 | °C |
Key Features
- Available in 3.3 V, 5.0 V, and adjustable voltage versions (from 2.5 V to 20 V) with ±2% output voltage accuracy.
- 400 mA output current capability.
- Low dropout voltage of up to 500 mV (max) for the 5.0 V output version.
- Inhibit input for control of the output voltage state.
- Very low current consumption.
- Comprehensive fault protection including overcurrent, overtemperature, short circuit, and thermal overload protection.
- High peak input voltage tolerance and reverse input voltage protection.
- Pb-Free devices.
- Available in DPAK and D2PAK surface mount packages.
Applications
The NCV4276B is designed for use in harsh automotive environments but is also suitable for a variety of other applications requiring robust and reliable voltage regulation. These include:
- Automotive systems: Battery management, infotainment systems, and other automotive electronics.
- Industrial control systems: Power supplies, motor control, and other industrial automation applications.
- Consumer electronics: Power management in portable devices, home appliances, and other consumer electronics.
- Aerospace and defense: Where high reliability and robust performance are critical.
Q & A
- What are the available output voltage versions of the NCV4276B?
The NCV4276B is available in 3.3 V, 5.0 V, and adjustable voltage versions (from 2.5 V to 20 V).
- What is the maximum output current of the NCV4276B?
The maximum output current is 400 mA.
- What is the dropout voltage for the 5.0 V output version?
The dropout voltage for the 5.0 V output version is up to 500 mV.
- Does the NCV4276B have overtemperature protection?
- What types of packages are available for the NCV4276B?
The NCV4276B is available in DPAK and D2PAK surface mount packages.
- How is the output voltage adjusted in the adjustable version?
The output voltage in the adjustable version is set using an external voltage divider connected to the Voltage Adjust Input (VA) pin.
- What is the inhibit function on the NCV4276B?
The inhibit input allows for control of the output voltage state, enabling or disabling the regulator.
- Is the NCV4276B Pb-Free?
- What is the input voltage range for the NCV4276B?
The input voltage range is from -42 V to 45 V, with an operating range dependent on the output voltage version.
- Does the NCV4276B have reverse input voltage protection?
- What is the quiescent current in sleep mode for the NCV4276B?
The quiescent current in sleep mode is up to 10 μA.
