Overview
The MC33269DR2G is a low dropout, medium current, adjustable 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 |
|---|---|---|---|---|---|
| Power Supply Input Voltage | Vin | - | - | 20 | V |
| Output Current | Iout | - | - | 800 | mA |
| Dropout Voltage (Iout = 500 mA) | Vin - Vout | 1.0 | 1.1 | 1.25 | V |
| Dropout Voltage (Iout = 800 mA) | Vin - Vout | 1.1 | 1.25 | 1.35 | V |
| Ripple Rejection (10 Vpp, 120 Hz Sinewave; Iout = 500 mA) | RR | 55 | - | - | dB |
| Current Limit (Vin - Vout = 10 V) | ILimit | 800 | - | - | mA |
| Quiescent Current (Fixed Output) | IQ | 5.5 | - | 8.0 | mA |
| Operating Ambient Temperature Range | TA | -40 | - | 125 | °C |
| Storage Temperature | Tstg | -55 | - | 150 | °C |
Key Features
- 3.3 V, 3.5 V, 5.0 V, 12 V, and adjustable output voltage versions
- Space-saving DPAK, SO-8, and SOT-223 power packages
- 1.0 V dropout voltage
- Output current in excess of 800 mA
- Thermal protection and short circuit protection
- Output 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 MC33269DR2G is suitable for various applications that require precise and efficient voltage regulation, including:
- Low input voltage applications
- Automotive systems (NCV prefix versions)
- Battery-backed power supplies
- Digitally controlled voltage regulators
- General-purpose voltage regulation in electronic devices
Q & A
- What is the maximum output current of the MC33269DR2G?
The maximum output current is in excess of 800 mA.
- What are the available output voltage versions for the MC33269DR2G?
The available output voltage versions include 3.3 V, 3.5 V, 5.0 V, 12 V, and adjustable.
- What is the dropout voltage of the MC33269DR2G?
The dropout voltage is 1.0 V for an output current of 500 mA and up to 1.35 V for an output current of 800 mA.
- Does the MC33269DR2G have thermal protection?
Yes, it includes thermal protection and short circuit protection.
- What are the package options for the MC33269DR2G?
The device is available in DPAK, SO-8, and SOT-223 power packages.
- Is the MC33269DR2G suitable for automotive applications?
Yes, the NCV prefix versions are AEC-Q100 qualified and PPAP capable, making them suitable for automotive and other applications requiring unique site and control change requirements.
- What is the operating ambient temperature range of the MC33269DR2G?
The operating ambient temperature range is from -40°C to 125°C.
- What is the storage temperature range for the MC33269DR2G?
The storage temperature range is from -55°C to 150°C.
- How is the output voltage adjusted in the adjustable version of the MC33269DR2G?
The output voltage can be adjusted using resistors R1 and R2 connected to the adjust pin.
- Does the MC33269DR2G have ripple rejection capability?
Yes, it has a ripple rejection of 55 dB for a 10 Vpp, 120 Hz sinewave at an output current of 500 mA.
