Overview
The NCV4299D2R2 is a precision micropower voltage regulator from onsemi, designed to provide reliable and efficient voltage regulation in various applications. This component is part of the NCV4299 family, which offers output current capabilities of up to 150 mA. The NCV4299D2R2 is specifically configured to deliver an output voltage of 3.3 V with an accuracy of ±2%. It is housed in an 8-lead SOIC package, making it suitable for compact and power-efficient designs.
This regulator is ideal for battery-operated microprocessor equipment due to its low quiescent current, which is typically 90 µA with a 1 mA load. It also features an inhibit function, adjustable reset threshold, and early warning signals, making it a robust choice for demanding environments, including automotive applications.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (3.3 V Version) | VQ | 3.23 | 3.3 | 3.37 | V |
| Output Current | IQ | - | - | 150 | mA |
| Current Limit | IQ | - | - | 500 | mA |
| Quiescent Current (INH ON, IQ < 1.0 mA) | Iq | - | 90 | 105 | µA |
| Input Voltage to Regulator (DC) | VI | -40 | - | 45 | V |
| Input Peak Transient Voltage to Regulator wrt GND | - | - | - | 60 | V |
| Operating Temperature Range | TJ | -40 | - | 150 | °C |
Key Features
- Precision Output Voltage: ±2% accuracy for both 5.0 V and 3.3 V versions.
- Low Quiescent Current: Typically 90 µA with a 1 mA load.
- Early Warning and Reset Functions: Adjustable reset threshold and delay, along with sense output for early warning signals.
- Inhibit Function: Available on the 14-lead package, reducing quiescent current to less than 1.0 µA when active.
- Fault Protection: Includes protection against reverse battery, short circuit, and thermal overload conditions.
- Automotive Compatibility: Can withstand load dump transients, making it suitable for automotive environments.
- Internally Fused Leads: Available in the SO-14 package for added reliability.
- Pb-Free Devices: Compliant with lead-free requirements.
Applications
The NCV4299D2R2 is ideal for various applications, particularly in battery-operated microprocessor equipment. Its low quiescent current and precision voltage regulation make it suitable for:
- Battery-powered devices
- Microprocessor-based systems
- Automotive electronics
- Portable electronics
- Industrial control systems
Q & A
- What is the output voltage accuracy of the NCV4299D2R2?
The output voltage accuracy is ±2% for the 3.3 V version.
- What is the maximum output current of the NCV4299D2R2?
The maximum output current is 150 mA.
- What is the typical quiescent current of the NCV4299D2R2?
The typical quiescent current is 90 µA with a 1 mA load.
- Does the NCV4299D2R2 have an inhibit function?
No, the inhibit function is available only on the 14-lead package, not on the 8-lead SOIC package of the NCV4299D2R2.
- What kind of fault protection does the NCV4299D2R2 offer?
The NCV4299D2R2 offers protection against reverse battery, short circuit, and thermal overload conditions.
- Is the NCV4299D2R2 suitable for automotive applications?
- What is the operating temperature range of the NCV4299D2R2?
The operating temperature range is -40°C to 150°C.
- Does the NCV4299D2R2 have internally fused leads?
No, internally fused leads are available only on the SO-14 package, not on the 8-lead SOIC package of the NCV4299D2R2.
- Is the NCV4299D2R2 Pb-free?
- What is the purpose of the reset output (RO) and sense output (SO) pins?
The reset output (RO) notifies the user of an out-of-regulation condition, and the sense output (SO) can provide an early warning signal of an impending reset condition.
- How can the reset threshold voltage be adjusted?
The reset threshold voltage can be decreased by connecting an external resistor divider to the RADJ lead.
