Overview
The MC33269DT-3.3G is a low dropout, medium current, fixed output voltage regulator produced by 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
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (Iout = 10 mA, TA = 25°C) | VO | 3.23 | 3.3 | 3.37 | V |
| Output Voltage (Line, Load and Temperature) | VO | 3.23 | 3.3 | 3.37 | V |
| Dropout Voltage (Iout = 500 mA) | Vin - Vout | - | 1.0 | 1.1 | V |
| Output Current | Iout | - | - | 800 | mA |
| Line Regulation (Iout = 10 mA, Vin = [Vout + 1.5 V] to Vin = 20 V, TA = 25°C) | Regline | - | - | 0.3 | % |
| Load Regulation (Vin = Vout + 3.0 V, Iout = 10 mA to 800 mA, TA = 25°C) | Regload | - | - | 0.5 | % |
| Quiescent Current (Fixed Output) | IQ | - | - | 5.5 | mA |
| Operating Ambient Temperature Range | TA | -40 | - | 125 | °C |
| Storage Temperature | Tstg | -55 | - | 150 | °C |
Key Features
- Fixed output voltage of 3.3 V
- 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 MC33269DT-3.3G is suitable for various applications requiring stable and efficient voltage regulation, including:
- Low input voltage applications
- Current regulators
- Battery-backed power supplies
- Digitally controlled voltage regulators
- Automotive and industrial systems where reliability and precision are critical
Q & A
- What is the output voltage of the MC33269DT-3.3G?
The output voltage of the MC33269DT-3.3G is 3.3 V.
- What is the maximum output current of the MC33269DT-3.3G?
The maximum output current is in excess of 800 mA.
- What is the dropout voltage of the MC33269DT-3.3G?
The dropout voltage is typically 1.0 V.
- Does the MC33269DT-3.3G have thermal protection?
Yes, it includes thermal protection and short circuit protection.
- What are the available package types for the MC33269DT-3.3G?
The device is available in DPAK, SO-8, and SOT-223 power packages.
- Is the MC33269DT-3.3G Pb-free?
Yes, the device is Pb-free.
- What is the operating ambient temperature range of the MC33269DT-3.3G?
The operating ambient temperature range is from -40°C to 125°C.
- Does the MC33269DT-3.3G require an external output capacitor for stability?
Yes, an external output capacitor of at least 10 μF with an ESR of less than 10 Ω is required for stability.
- Is the MC33269DT-3.3G suitable for automotive applications?
Yes, the NCV prefix version is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other applications requiring unique site and control change requirements.
- What is the quiescent current of the MC33269DT-3.3G?
The quiescent current is typically 5.5 mA.
