Overview
The MC33269ST-3.3T3G is a low dropout, medium current, positive voltage regulator from onsemi. This device is part of the MC33269/NCV33269 series, designed for use in low input voltage applications. It offers 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 applications requiring stable and efficient voltage regulation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 3.3 | V |
| Output Current | 800 | mA |
| Dropout Voltage | 1.0 | V |
| Input Voltage Range | Up to 20 | V |
| Operating Ambient Temperature Range | -40 to +125 | °C |
| Storage Temperature Range | -55 to +150 | °C |
| Quiescent Current (Fixed Output) | 5.5 - 8.0 | mA |
| Current Limit | 800 | mA |
| Ripple Rejection (10 Vpp, 120 Hz Sinewave) | 55 | dB |
| Package Type | SOT-223 |
Key Features
- Low dropout voltage of 1.0 V
- Output current in excess of 800 mA
- Thermal protection and short circuit protection
- Output trimmed to 1.0% tolerance
- Space-saving DPAK, SO-8, and SOT-223 power packages
- Pb-free devices
- NCV prefix for automotive and other applications requiring unique site and control change requirements; AEC-Q100 qualified and PPAP capable
Applications
The MC33269ST-3.3T3G is suitable for various applications requiring stable and efficient voltage regulation, including:
- Low input voltage applications
- Automotive systems (NCV prefix versions)
- Industrial control systems
- Consumer electronics
- Battery-backed power supplies
- Digitally controlled voltage regulators
Q & A
- What is the output voltage of the MC33269ST-3.3T3G?
The output voltage is 3.3 V. - What is the maximum output current of the MC33269ST-3.3T3G?
The maximum output current is in excess of 800 mA. - What is the dropout voltage of the MC33269ST-3.3T3G?
The dropout voltage is 1.0 V. - What are the operating temperature ranges for the MC33269ST-3.3T3G?
The operating ambient temperature range is -40 to +125°C, and the storage temperature range is -55 to +150°C. - Does the MC33269ST-3.3T3G have thermal protection?
Yes, it has thermal protection and short circuit protection. - What are the package types available for the MC33269 series?
The MC33269 series is available in DPAK, SO-8, and SOT-223 power packages. - Is the MC33269ST-3.3T3G Pb-free?
Yes, it is a Pb-free device. - What does the NCV prefix indicate?
The NCV prefix indicates that the device is AEC-Q100 qualified and PPAP capable, suitable for automotive and other applications requiring unique site and control change requirements. - What is the ripple rejection of the MC33269ST-3.3T3G?
The ripple rejection is 55 dB for a 10 Vpp, 120 Hz sinewave. - What is the quiescent current for the fixed output version?
The quiescent current for the fixed output version is between 5.5 and 8.0 mA.
