Overview
The MC33269DR2-012 is a low dropout, medium current, positive 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 applications requiring stable and efficient voltage regulation.
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 = 500 mA) | Vin - Vout | 1.0 | 1.1 | 1.25 | V |
| Output Current | Iout | - | - | 800 | mA |
| Current Limit (Vin - Vout = 10 V) | ILimit | - | - | 800 | mA |
| Quiescent Current (Fixed Output) | IQ | - | - | 20 | mA |
| Minimum Required Load Current (Fixed Output) | ILoad | - | - | 8.0 | mA |
| Adjustment Pin Current | IAdj | - | - | 120 | μA |
| Operating Ambient Temperature Range | TA | -40 | - | 125 | °C |
| Storage Temperature | Tstg | -55 | - | 150 | °C |
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
- Available in fixed (3.3 V, 3.5 V, 5.0 V, 12 V) and adjustable versions
- Space-saving DPAK, SO-8, and SOT-223 power packages
- NCV prefix for automotive and other applications requiring unique site and control change requirements; AEC-Q100 qualified and PPAP capable
Applications
- Low input voltage applications
- Battery-backed power supplies
- Digitally controlled voltage regulators
- Automotive systems requiring high reliability and precision voltage regulation
- General-purpose power supplies where low dropout and high current are necessary
Q & A
- What is the maximum output current of the MC33269DR2-012?
The maximum output current is in excess of 800 mA.
- What are the available output voltage options for the MC33269 series?
The MC33269 series is available in fixed output voltages of 3.3 V, 3.5 V, 5.0 V, and 12 V, as well as adjustable versions.
- What is the dropout voltage of the MC33269DR2-012?
The dropout voltage is 1.0 V.
- Does the MC33269DR2-012 have thermal protection?
- What are the package options for the MC33269 series?
The MC33269 series is available in DPAK, SO-8, and SOT-223 power packages.
- Is the MC33269DR2-012 suitable for automotive applications?
- What is the quiescent current of the MC33269DR2-012?
The quiescent current for fixed output versions is up to 20 mA.
- What is the minimum required load current for the fixed output version?
The minimum required load current is 8.0 mA.
- How is the output voltage adjusted in the adjustable version of the MC33269?
The output voltage can be adjusted using resistors R1 and R2 connected to the adjust pin.
- What is the operating ambient temperature range of the MC33269DR2-012?
The operating ambient temperature range is from -40°C to 125°C.
