Overview
The MC33269DT-012G is a low dropout, medium current, positive voltage regulator produced by 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 | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (Iout = 10 mA, TA = 25°C) | 11.88 | 12.00 | 12.12 | V |
| Dropout Voltage (Iout = 500 mA) | - | 1.0 | 1.1 | V |
| Dropout Voltage (Iout = 800 mA) | - | 1.1 | 1.25 | V |
| Ripple Rejection (10 Vpp, 120 Hz Sinewave; Iout = 500 mA) | 55 | - | - | dB |
| Current Limit (Vin - Vout = 10 V) | 800 | - | - | mA |
| Quiescent Current (Fixed Output) | 5.5 | - | 8.0 | mA |
| Minimum Required Load Current | 0 | - | - | mA |
| Adjustment Pin Current | - | 120 | - | μA |
| Operating Ambient Temperature Range | -40 | - | 125 | °C |
| Storage Temperature | -55 | - | 150 | °C |
| Electrostatic Discharge Sensitivity (HBM) | 4000 | - | - | V |
Key Features
- Available in fixed output voltages of 3.3 V, 3.5 V, 5.0 V, and 12 V, as well as adjustable versions.
- Space-saving DPAK, SO-8, and SOT-223 power packages.
- 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.
- NCV prefix for automotive and other applications requiring unique site and control change requirements; AEC-Q100 qualified and PPAP capable.
Applications
The MC33269DT-012G is suitable for various applications requiring stable and efficient voltage regulation, including:
- Low input voltage applications.
- Automotive systems (with NCV prefix).
- Battery-backed power supplies.
- Digitally controlled voltage regulators.
- General-purpose voltage regulation in industrial and consumer electronics.
Q & A
- What is the maximum output current of the MC33269DT-012G?
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 MC33269DT-012G?
The dropout voltage is approximately 1.0 V for an output current of 500 mA and up to 1.25 V for an output current of 800 mA.
- Does the MC33269DT-012G have thermal protection?
- What are the recommended capacitors for stability?
An external output capacitor of at least 10 μF with an ESR of less than 10 Ω but greater than 0.2 Ω is recommended for stability. Solid tantalum or low ESR ceramic capacitors are suggested.
- Is the MC33269DT-012G suitable for automotive applications?
- What is the operating ambient temperature range of the MC33269DT-012G?
- What is the storage temperature range for the MC33269DT-012G?
- Does the MC33269DT-012G require an input bypass capacitor?
- What are the available package options for the MC33269DT-012G?
