Overview
The MC33269DR2-3.3G 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
| Parameter | Value | Unit |
|---|---|---|
| Power Supply Input Voltage (Vin) | 20 | V |
| Operating Ambient Temperature Range | −40 to +125 | °C |
| Storage Temperature Range | −55 to +150 | °C |
| Output Voltage (Vout) - 3.3V Version | 3.27 to 3.33 | V |
| Output Current (Iout) | Up to 800 | mA |
| Dropout Voltage (Vin - Vout) | 1.0 to 1.1 | V |
| Ripple Rejection (RR) | 55 | dB |
| Current Limit (ILimit) | 800 | mA |
| Quiescent Current (IQ) | 5.5 to 8.0 | mA |
| Minimum Required Load Current | 8.0 | mA |
| Adjustment Pin Current (IAdj) | 120 | μA |
| Package Type | SO-8 (Pb-Free) |
Key Features
- Fixed and adjustable output voltage options (3.3 V, 3.5 V, 5.0 V, 12 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 MC33269DR2-3.3G is suitable for various applications that require stable and efficient voltage regulation. Some typical applications include:
- Low input voltage applications
- Current regulators
- Battery-backed power supplies
- Digitally controlled voltage regulators
- Automotive systems requiring AEC-Q100 qualification
Q & A
- What is the maximum input voltage for the MC33269DR2-3.3G?
The maximum input voltage is 20 V. - What is the typical dropout voltage of the MC33269DR2-3.3G?
The typical dropout voltage is less than 1.0 V. - What is the maximum output current of the MC33269DR2-3.3G?
The maximum output current is in excess of 800 mA. - Does the MC33269DR2-3.3G have thermal protection?
Yes, it includes thermal protection and short circuit protection. - What is the output voltage tolerance of the MC33269DR2-3.3G?
The output voltage is trimmed to 1.0% tolerance. - What are the available package types for the MC33269DR2-3.3G?
The available package types include DPAK, SO-8, and SOT-223. - Is the MC33269DR2-3.3G Pb-Free?
Yes, it is a Pb-Free device. - What is the significance of the NCV prefix in the MC33269 series?
The NCV prefix indicates that the device is AEC-Q100 qualified and PPAP capable, suitable for automotive and other applications requiring unique site and control change requirements. - What is the minimum required load current for the MC33269DR2-3.3G?
The minimum required load current is 8.0 mA. - What is the adjustment pin current for the MC33269DR2-3.3G?
The adjustment pin current is 120 μA.
