Overview
The NCV4269ADW50R2G is a precision micropower voltage regulator produced by onsemi. This component is part of the NCV4269A series, which offers 5.0 V and 3.3 V output voltage options with high accuracy and low quiescent current. It is designed to support battery-operated microprocessor equipment, featuring an active reset output with delay and a sense output for early warning signals. The regulator is robust, with protection against reverse battery, short circuit, and thermal overload conditions, making it suitable for automotive and other demanding environments.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Output Voltage (5.0 V Version) | 4.90 | 5.00 | 5.10 | V |
| Output Voltage (3.3 V Version) | 3.234 | 3.30 | 3.366 | V |
| Output Current Capability | - | 150 | 200 | mA |
| Quiescent Current (IQ = 1 mA) | - | 190 | 250 | µA |
| Dropout Voltage (at 100 mA) | - | 0.5 | - | V |
| Input Voltage Range | 5.5 | - | 16 | V |
| Junction Temperature Range | -40 | - | 150 | °C |
| Peak Transient Voltage | - | - | 60 | V |
| Reverse Voltage | -40 | - | - | V |
Key Features
- 5.0 V and 3.3 V output voltage options with ±2.0% accuracy
- Low quiescent current of 190 µA with a 1.0 mA load
- Active reset output with delay, operating correctly down to 1.0 V output voltage
- Adjustable reset threshold using an external resistor divider
- Early warning through SI/SO leads for impending reset signals
- Fault protection including +60 V peak transient voltage, -40 V reverse voltage, short circuit, and thermal overload
- Internally fused leads in SO-14 and SO-20 packages
- Integrated pullup resistor at logic outputs
Applications
The NCV4269ADW50R2G is ideal for battery-operated microprocessor equipment, particularly in automotive and other environments where robustness and reliability are crucial. It is suitable for use in systems requiring precise voltage regulation, early warning signals for impending resets, and comprehensive fault protection.
- Battery-operated microprocessor systems
- Automotive electronics
- Industrial control systems
- Portable electronic devices
Q & A
- What are the output voltage options for the NCV4269ADW50R2G?
The NCV4269ADW50R2G offers 5.0 V and 3.3 V output voltage options.
- What is the maximum output current capability of the NCV4269ADW50R2G?
The maximum output current capability is 150 mA.
- What is the quiescent current of the NCV4269ADW50R2G at a 1.0 mA load?
The quiescent current is 190 µA at a 1.0 mA load.
- How does the active reset output function in the NCV4269ADW50R2G?
The active reset output generates a reset signal during power-up or when the output voltage drops below the reset threshold voltage, with a delay timer to allow the microprocessor to finish any signal processing.
- What types of fault protection does the NCV4269ADW50R2G offer?
The device offers protection against +60 V peak transient voltage, -40 V reverse voltage, short circuit, and thermal overload.
- Can the reset threshold voltage be adjusted in the NCV4269ADW50R2G?
Yes, the reset threshold voltage can be adjusted using an external resistor divider connected to the RADJ lead.
- What is the purpose of the SI/SO leads in the NCV4269ADW50R2G?
The SI/SO leads provide an early warning signal to the microprocessor of a potential impending reset signal, allowing the microprocessor to finish any signal processing before the reset.
- What are the typical operating temperature ranges for the NCV4269ADW50R2G?
The junction temperature range is -40°C to 150°C.
- Is the NCV4269ADW50R2G suitable for automotive applications?
Yes, it is designed to withstand load dump transients and is optimized for EMC conditions, making it suitable for automotive environments.
- What package options are available for the NCV4269ADW50R2G?
The device is available in SO-8, SO-14, and SO-20L packages.
