Overview
The MC33269DR2-012G is a low dropout, medium current, fixed output voltage regulator from onsemi. This device is part of the MC33269/NCV33269 series, which is specifically 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 industrial and automotive applications.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (Iout = 10 mA, TA = 25°C) | VO | 11.88 | 12.00 | 12.12 | V |
| Dropout Voltage (Iout = 800 mA) | Vin - Vout | - | 1.0 | 1.1 | V |
| Output Current | Iout | - | 800 | - | mA |
| Quiescent Current (Fixed Output) | IQ | - | 5.5 | 8.0 | mA |
| Minimum Required Load Current | ILoad | - | 8.0 | - | mA |
| Ripple Rejection (10 Vpp, 120 Hz Sinewave; Iout = 500 mA) | RR | - | 55 | - | dB |
| Thermal Resistance, Junction-to-Ambient | θJA | - | 92 | - | °C/W |
| Operating Ambient Temperature Range | TA | -40 | - | 125 | °C |
| Storage Temperature | Tstg | -55 | - | 150 | °C |
Key Features
- Fixed and adjustable output voltage options: 3.3 V, 3.5 V, 5.0 V, 12 V, and adjustable versions.
- Low dropout voltage of 1.0 V, ensuring efficient operation in low input voltage applications.
- Output current in excess of 800 mA, making it suitable for medium current requirements.
- Thermal protection and short circuit protection for enhanced reliability.
- Output voltage trimmed to 1.0% tolerance for high precision.
- Space-saving packages: DPAK, SO-8, and SOT-223.
- Pb-free packages available.
- NCV prefix versions are AEC-Q100 qualified and PPAP capable, suitable for automotive and other critical applications.
Applications
The MC33269DR2-012G is designed for use in various applications requiring precise voltage regulation and low power losses. These include:
- Industrial power supplies and voltage regulation systems.
- Automotive systems, especially those requiring AEC-Q100 qualification.
- Battery-backed power supplies and backup systems.
- Digitally controlled voltage regulators.
- General-purpose voltage regulation in electronic devices.
Q & A
- What is the maximum output current of the MC33269DR2-012G?
The maximum output current is in excess of 800 mA.
- What are the available output voltage options for the MC33269 series?
The available output voltage options include 3.3 V, 3.5 V, 5.0 V, 12 V, and adjustable versions.
- What is the dropout voltage of the MC33269DR2-012G?
The dropout voltage is approximately 1.0 V.
- Does the MC33269DR2-012G have thermal protection?
Yes, it includes thermal protection and short circuit protection.
- What are the package options for the MC33269 series?
The device is available in DPAK, SO-8, and SOT-223 packages.
- Is the MC33269DR2-012G Pb-free?
Yes, the device is Pb-free.
- What is the operating ambient temperature range for the MC33269DR2-012G?
The operating ambient temperature range is from -40°C to 125°C.
- Does the MC33269DR2-012G require an external output capacitor for stability?
Yes, an external output capacitor of at least 10 μF is required for stability.
- What is the ripple rejection of the MC33269DR2-012G?
The ripple rejection is approximately 55 dB at 120 Hz sinewave and Iout = 500 mA.
- Is the MC33269DR2-012G suitable for automotive applications?
Yes, the NCV prefix versions are AEC-Q100 qualified and PPAP capable, making them suitable for automotive and other critical applications.
