Overview
The MC33269T-3.5G is a low dropout, medium current, fixed output positive voltage regulator from onsemi. This device is specifically designed for use in low input voltage applications, offering 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 Voltage (3.5 V Suffix, Iout = 10 mA, TA = 25°C) | VO | 3.465 | 3.535 | V | |
| Dropout Voltage (Iout = 500 mA) | Vin - Vout | 1.0 | 1.1 | V | |
| Output Current | Iout | 800 | mA | ||
| Thermal Resistance, Junction-to-Ambient (DPAK) | θJA | 92 | °C/W | ||
| Quiescent Current (Fixed Output) | IQ | 8.0 | mA | ||
| Operating Ambient Temperature Range | TA | -40 | 125 | °C |
Key Features
- Fixed output voltage of 3.5 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
- AEC-Q100 qualified and PPAP capable for automotive and other applications requiring unique site and control change requirements
Applications
- Low input voltage applications
- Automotive systems requiring AEC-Q100 qualification
- 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 MC33269T-3.5G?
The maximum output current is in excess of 800 mA.
- What is the dropout voltage of the MC33269T-3.5G?
The dropout voltage is 1.0 V at an output current of 500 mA.
- What are the available package types for the MC33269T-3.5G?
The device is available in DPAK, SO-8, and SOT-223 power packages.
- Is the MC33269T-3.5G suitable for automotive applications?
- What is the operating ambient temperature range of the MC33269T-3.5G?
The operating ambient temperature range is from -40°C to +125°C.
- Does the MC33269T-3.5G have thermal protection?
- What is the quiescent current of the MC33269T-3.5G?
The quiescent current is up to 8.0 mA for fixed output voltage.
- Is the MC33269T-3.5G a Pb-free device?
- How is the output voltage tolerance of the MC33269T-3.5G?
The output voltage is trimmed to 1.0% tolerance.
- What is the ripple rejection of the MC33269T-3.5G?
The ripple rejection is 55 dB at 120 Hz with a 10 Vpp sinewave and an output current of 500 mA.
