Overview
The NCV4269AD133R2G is a precision micropower voltage regulator produced by onsemi. This component is part of the NCV4269A series, offering a 3.3 V output voltage with high accuracy and low quiescent current. It is designed for battery-operated microprocessor equipment and features an active reset output, adjustable reset threshold, and comprehensive fault protection. The regulator is optimized for use in various environments, including automotive applications, due to its ability to withstand load dump transients and thermal overload conditions.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Output Voltage (3.3 V Version) | 3.234 | 3.30 | 3.366 | V |
| Output Current Capability | - | - | 150 | mA |
| Quiescent Current (IQ = 1 mA) | - | 190 | 250 | μA |
| Input Voltage Range | 5.5 | - | 16 | V |
| Maximum Dropout Voltage (at 100 mA) | - | - | 0.5 | V |
| Reset Threshold Voltage | - | - | Adjustable via RADJ | V |
| Operating Junction Temperature | -40 | - | 150 | °C |
| Package | - | - | SO-8 (Pb-Free) | - |
Key Features
- 3.3 V output voltage with ±2.0% accuracy
- Low quiescent current of 190 μA with a 1 mA load
- Active reset output that operates down to VQ = 1.0 V
- Adjustable reset threshold via RADJ lead
- 150 mA output current capability
- Fault protection: +60 V peak transient voltage, -40 V reverse voltage, short circuit, and thermal overload
- Early warning through SI/SO leads
- Internally fused leads in SO-14 and SO-20 packages
- Integrated pullup resistor at logic outputs
Applications
The NCV4269AD133R2G is ideal for battery-operated microprocessor equipment, including handheld devices, automotive systems, and other applications requiring low power consumption and high reliability. Its robust fault protection and ability to withstand load dump transients make it particularly suitable for automotive environments.
Q & A
- What is the output voltage of the NCV4269AD133R2G?
The output voltage is 3.3 V with an accuracy of ±2.0%. - What is the maximum output current capability of the NCV4269AD133R2G?
The maximum output current capability is 150 mA. - What is the quiescent current of the NCV4269AD133R2G at a 1 mA load?
The quiescent current is 190 μA. - How does the active reset output function in the NCV4269AD133R2G?
The active reset output generates a reset signal when the output voltage drops below the reset threshold voltage. It operates correctly at output voltages as low as 1.0 V. - Can the reset threshold voltage be adjusted in the NCV4269AD133R2G?
Yes, the reset threshold voltage can be adjusted via an external resistor divider connected to the RADJ lead. - What types of fault protection does the NCV4269AD133R2G offer?
The device offers protection against +60 V peak transient voltage, -40 V reverse voltage, short circuit, and thermal overload. - How does the early warning feature work in the NCV4269AD133R2G?
The early warning is provided through the SI/SO leads, allowing the microprocessor to finish any signal processing before a reset occurs. - What packages are available for the NCV4269AD133R2G?
The device is available in SO-8 (Pb-Free) packages. - Is the NCV4269AD133R2G suitable for automotive applications?
Yes, it is suitable for automotive applications due to its ability to withstand load dump transients and thermal overload conditions. - What is the operating junction temperature range of the NCV4269AD133R2G?
The operating junction temperature range is -40°C to 150°C.
