Overview
The onsemi MC33269DR2-3.3G is a low dropout (LDO) linear voltage regulator designed for medium current applications. This device is part of the MC33269/NCV33269 series, which offers fixed and adjustable positive voltage regulation. It is specifically tailored for use in low input voltage scenarios, providing an economical solution for precision voltage regulation while minimizing power losses. The regulator features a 1.0 V dropout composite PNP-NPN pass transistor, current limiting, and thermal shutdown, making it suitable for a variety of electronic systems requiring stable voltage supply.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | onsemi |
| Part Number | MC33269DR2-3.3G |
| Package | SOIC-8 |
| Output Voltage | 3.3 V (Fixed) |
| Maximum Output Current | 800 mA |
| Maximum Input Voltage | 20 V |
| Dropout Voltage | 1.35 V @ 800 mA |
| Operating Temperature Range | -40°C to +125°C |
| Quiescent Current | 8 mA (Typical) |
| Line Regulation | 0.3 % |
| Load Regulation | 0.5 % |
| Ripple Rejection | 55 dB @ 120 Hz |
| Mounting Type | Surface Mount |
| Polarity | Positive |
Key Features
- Low dropout voltage of 1.0 V, ensuring minimal power loss.
- High output current capability of up to 800 mA.
- Thermal protection and short circuit protection for enhanced reliability.
- Output voltage trimmed to 1.0% tolerance for precision regulation.
- Space-saving SOIC-8 package.
- Overcurrent protection (OCP) and thermal shutdown features.
- Ripple rejection of 55 dB @ 120 Hz, ensuring a stable output voltage.
Applications
The onsemi MC33269DR2-3.3G is suitable for various applications requiring stable and efficient voltage regulation, including:
- Low input voltage systems.
- Portable electronics and battery-powered devices.
- Industrial control systems and automation.
- Medical devices and equipment.
- Telecommunication and networking equipment.
Q & A
- What is the maximum output current of the MC33269DR2-3.3G?
The maximum output current is 800 mA. - What is the operating temperature range of the MC33269DR2-3.3G?
The operating temperature range is -40°C to +125°C. - What is the dropout voltage of the MC33269DR2-3.3G at 800 mA output current?
The dropout voltage is 1.35 V at 800 mA output current. - Does the MC33269DR2-3.3G have thermal protection?
Yes, it includes thermal shutdown and short circuit protection features. - What is the ripple rejection of the MC33269DR2-3.3G?
The ripple rejection is 55 dB @ 120 Hz. - What package type is the MC33269DR2-3.3G available in?
The MC33269DR2-3.3G is available in an SOIC-8 package. - What is the maximum input voltage for the MC33269DR2-3.3G?
The maximum input voltage is 20 V. - Is the MC33269DR2-3.3G RoHS compliant?
Yes, the MC33269DR2-3.3G is RoHS compliant. - What is the quiescent current of the MC33269DR2-3.3G?
The quiescent current is typically 8 mA. - Does the MC33269DR2-3.3G have overcurrent protection?
Yes, it includes overcurrent protection (OCP).
