Overview
The MC33269T-012G is a low dropout, medium current, fixed positive voltage regulator produced by onsemi. This device is part of the MC33269/NCV33269 series, designed for use in low input voltage applications, offering 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 regulation.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | onsemi |
| Part Number | MC33269T-012G |
| Package | TO-220AB |
| Output Voltage | 12 V (Fixed) |
| Maximum Output Current | 800 mA |
| Dropout Voltage | 1.35 V @ 800 mA |
| Power Supply Rejection Ratio (PSRR) | 55 dB @ 120 Hz |
| Operating Temperature Range | -40°C to +125°C |
| Storage Temperature Range | -55°C to +150°C |
| Thermal Protection | Yes |
| Short Circuit Protection | Yes |
Key Features
- Low dropout voltage of 1.0 V
- Output current in excess of 800 mA
- Thermal protection and short circuit protection
- Output voltage trimmed to 1.0% tolerance
- Space-saving TO-220AB package
- Economical solution for precision voltage regulation in low input voltage applications
Applications
The MC33269T-012G is suitable for various applications requiring stable and efficient voltage regulation, including:
- Low input voltage systems
- Battery-backed power supplies
- Digitally controlled voltage regulators
- General-purpose voltage regulation in electronic devices
- Automotive and industrial systems (especially with the NCV prefix for AEC-Q100 qualified devices)
Q & A
- What is the maximum output current of the MC33269T-012G?
The maximum output current is 800 mA. - What is the dropout voltage of the MC33269T-012G at 800 mA?
The dropout voltage is 1.35 V at 800 mA. - What is the operating temperature range of the MC33269T-012G?
The operating temperature range is -40°C to +125°C. - Does the MC33269T-012G have thermal and short circuit protection?
Yes, it has both thermal and short circuit protection. - What is the power supply rejection ratio (PSRR) of the MC33269T-012G?
The PSRR is 55 dB at 120 Hz. - What package type is the MC33269T-012G available in?
The MC33269T-012G is available in the TO-220AB package. - Is the MC33269T-012G suitable for automotive applications?
Yes, especially with the NCV prefix, it is AEC-Q100 qualified and PPAP capable. - What is the storage temperature range for the MC33269T-012G?
The storage temperature range is -55°C to +150°C. - Can the output voltage of the MC33269T-012G be adjusted?
No, the MC33269T-012G has a fixed output voltage of 12 V, but other versions in the series offer adjustable output voltages. - What is the minimum required load current for the MC33269T-012G?
The minimum required load current is 8.0 mA.
